Abstract

The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.

IPC Classes  ?

• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• C04B 35/634 - Polymers
• C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
• C04B 38/08 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding porous substances

Abstract

What is described are isocyanate compositions comprising β-dicarbonyl compounds and a binder system, especially for use in a process from the group consisting of polyurethane cold-box process and polyurethane no-bake process, with this isocyanate composition as polyisocyanate component.

IPC Classes  ?

• C08G 18/54 - Polycondensates of aldehydes
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 18/08 - Processes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 7/05 - Forming flame retardant coatings or fire resistant coatings

Abstract

The invention relates to a method for guiding a moulding material in a moulding material cycle comprising two or more cycles.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/20 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica

Abstract

The invention relates to a method for reducing carbon-based emissions and/or carbon-based casting defects during a moulding cycle of a moulding material containing smectite-containing clay, said moulding cycle comprising two or more cycles.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica

Abstract

The invention relates to a method for guiding a moulding material in a moulding material cycle comprising two or more cycles.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica

Abstract

The invention relates to a method for guiding a moulding material in a moulding material cycle comprising two or more cycles.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica

Abstract

The invention relates to a moulding material for producing a clay-bonded mould and to the use thereof in a moulding material cycle.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/20 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica

Goods & Services

Chemicals for use in industry and science; chemicals used in the iron and steel industry; synthetic resins, unprocessed; unprocessed plastics; artificial resins and synthetic resins being binding substances and additives for foundry mould and core sand and for brake, reaming, grinding and press moulding preparations and laminates; inorganic binding agents; binding substances for moulding materials for use in foundries, in particular for foundry sand and for use in the following fields: ceramic industries; foundry aids [chemicals]; coatings for foundry moulds and foundry cores; core and mould coatings for use in the foundry industry; additives [auxiliaries], for use in the following fields: laquer industry and plastics industries; binding substances for the manufacture of moulded objects made from pourable bases, for example, from wood flour and/or ground coconut; foundry sand; foundry sand coated with artificial resin; foundry moulding preparations, in particular foundry moulding preparations coated with artificial resin; foundry shell moulding preparations; binding substances with a base of phenol resin for binding foundry moulds and cores; core sand binders; foundry sand additives; chemical additives for making foundry moulds and cores waterproof; adhesives for use in industry; mould release agents, included in class 1; mould care preparations, the aforesaid products being included in class 1; salts and salt mixtures; chemical additives for sealing materials; catalysts.

Abstract

The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.

IPC Classes  ?

• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• C04B 35/634 - Polymers
• C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
• C04B 38/08 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding porous substances

Abstract

This technology relates to refractory coatings used in metal casting by the foundry industry. Refractory coatings are often used to coat foundry cores and molds for the purpose of improving the quality of castings formed in connection with the cores or molds, particularly at the surface of the casting. Whereas traditional coatings comprise water based solvents that require excessive drying times or HAPs that emit hazardous VOCs, preferred embodiments of the present invention comprise refractory coatings having VOC-exempt ester based solvents, such as a dimethyl carbonate (DMC). Other preferred embodiments of the present invention comprise methods for reduction of VOC content in a foundry article.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
• C04B 41/50 - Coating or impregnating with inorganic materials

Goods & Services

Iron-oxide-based foundry sand additive used in the manufacture of metallic castings.

Goods & Services

Chemicals for use in industry and science; chemicals used in the iron and steel industry; synthetic resins, unprocessed; unprocessed plastics; unprocessed artificial resins and synthetic resins being used as binding substances and additives for foundry mould and core sand and for brake, reaming, grinding and for press moulding preparations and laminates; chemical additives for use as inorganic binding agents in foundry moulding materials; binding substances, namely, inorganic binders for moulding materials for use in foundry sand and for use in the ceramic industries; foundry aids, namely, glues for sand cores, molds and die and pressure castings; coatings, namely, chemical core and mould coatings for foundry moulds and foundry cores; core and mould coatings, namely, chemical preparations for use in the foundry industry; additives, namely, chemical preparations for dissolving or diluting refractory coatings, resins, polymers and cleaning preparations for tools and core box surfaces for use in the laquer industry and plastics industries; binding substances, namely, chemical adhesives for the manufacture of moulded objects made from wood flour and ground coconut; foundry sand; foundry sand coated with artificial resin; foundry moulding preparations in the nature of foundry sand coated with artificial resin; foundry shell moulding preparations in the nature of foundry sand; binding substances, namely, chemicals with a base of phenol resin for binding foundry moulds and cores; core sand binders, namely, chemicals for use in foundry industry; foundry sand additives used in the manufacture of metallic castings; chemical additives, namely, core and mould coatings for making foundry moulds and cores waterproof; adhesives for use in industry; mould release preparations; mould care preparations, namely, refractory coatings for use in the foundry industry; industrial salts and salt mixtures, namely, chemical salts for use in the foundry industry; chemical additives, namely, sealants for use in the foundry industry for sealing materials; chemical catalysts for use in the manufacture of industrial chemicals

Goods & Services

(1) Iron-oxide-based foundry sand additive used in the manufacture of metallic castings.

Abstract

What is described is a process for producing an article for use in the foundry industry, selected from the group consisting of molds, cores, feeder elements and molding material mixtures, comprising the following steps: (S1) producing or providing a binder system comprising the following components in three spatially separate vessels: a component (A) comprising particulate amorphous silicon dioxide, a first liquid component (B) comprising waterglass, and a second liquid component (C) comprising aluminate ions dissolved in an aqueous phase, (S2) contacting a mold base material (D) and constituents of all the said components (A), (B) and (C) of the binder system in predetermined ratios in one or more steps, so as to result in a molding material mixture in which the aluminate ions and the particulate amorphous silicon dioxide are mixed wholly or partly into the waterglass, wherein steps (S1) and (S2) are conducted in a facility for producing molding material mixtures. Also described are a corresponding molding material mixture and apparatuses and uses

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 11/00 - Moulding machines for making moulds or cores, characterised by the relative arrangement of their parts

Abstract

What are described are a process for producing an insulating product for the construction materials industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Also described are the use of a matrix encapsulation method for production of composite particles in the production of an insulating product for the construction materials industry or of an insulating material as intermediate for production of such a product, and the corresponding use of the composite particles producible by means of a matrix encapsulation method

IPC Classes  ?

• C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
• C04B 18/02 - Agglomerated materials
• C04B 33/04 - ClayKaolin
• C04B 33/14 - Colouring matters
• C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay
• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• C04B 35/64 - Burning or sintering processes
• C04B 38/02 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding chemical blowing agents
• C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances

Goods & Services

Iron-oxide-based foundry sand additive used in the manufacture of metallic castings

Goods & Services

Devices and systems comprising liquid level sensors and downloadable software for use in monitoring and managing fluid levels in the field of foundry products and equipment inventory and supply control services in the field of foundry products and equipment; analysis of business data in the field of foundry products and equipment software as a service (SAAS) services featuring software for monitoring and managing fluid levels in the field of foundry products and equipment; scientific and technological services, namely, analysis of technical product data in the field of foundry products and equipment

Abstract

The present invention describes the use of a coating composition, comprising an aqueous phase having a pH of at most 5 and one or more refractories, in the foundry industry and also coated, waterglass-bound foundry molding elements, especially foundry molds and/or foundry cores, which each comprise such an aforementioned coating composition. The invention further describes a method for producing a coated, waterglass-bound foundry molding element. The invention likewise describes a kit whose contents include an aforementioned coating composition, comprising aqueous acid and one or more refractories.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns

Goods & Services

Chemicals for use in industry and science; Chemicals used in the iron and steel industry; Synthetic resins, unprocessed; Unprocessed plastics; Artificial resins and synthetic resins being binding substances and additives for foundry mould and core sand and for brake, reaming, grinding and press moulding preparations and laminates; Inorganic binding agents; Binding substances for moulding materials for use in foundries, in particular for foundry sand and for use in the following fields: Ceramic industries; Foundry aids [chemicals]; Coatings for foundry moulds and foundry cores; Core and mould coatings for use in the foundry industry; Additives [auxiliaries], for use in the following fields: laquer industry and plastics industries; Binding substances for the manufacture of moulded objects made from pourable bases, for example, from wood flour and/or ground coconut; Foundry sand; Foundry sand coated with artificial resin; Foundry moulding preparations, in particular foundry moulding preparations coated with artificial resin; Foundry shell moulding preparations; Binding substances with a base of phenol resin for binding foundry moulds and cores; Core sand binders; Foundry sand additives; Chemical additives for making foundry moulds and cores waterproof; Adhesives for use in industry; Mould release agents, included in class 1; Mould care preparations, The aforesaid products being included in class 1; Salts and Salt mixtures; Sealing materials for use in industry; Catalysts.

Abstract

The present invention describes a coating composition for the foundry industry, for use in the foundry, in particular comprising certain organic ester compounds of a formula (I) and particulate, amorphous silicon dioxide (SiO2); and also coated foundry molding elements, especially foundry molds and/or foundry cores, which each comprise a coating composition of the invention. The invention further describes the use of a coating composition of the invention for producing a coating on a foundry molding element and a method for producing a foundry molding element coated with a water-containing refractory coating. The invention likewise describes a kit whose contents include a coating composition of the invention.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• C09D 129/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09D 131/04 - Homopolymers or copolymers of vinyl acetate
• C09D 5/18 - Fireproof paints
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/40 - Additives
• C09D 7/20 - Diluents or solvents

Abstract

What are described are the use of a refractory coating composition for production of cores for diecasting, a kit for production of cores for use in diecasting, a method of producing cores for use in diecasting, cores for use in diecasting, and the use of such cores in diecasting, especially of lightweight metals.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 9/10 - CoresManufacture or installation of cores
• C04B 14/02 - Granular materials
• C04B 14/04 - Silica-rich materialsSilicates
• C04B 14/06 - QuartzSand
• C04B 14/10 - Clay
• C04B 28/24 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl ammonium or alkali metal silicatesCompositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing silica sols
• B22D 17/00 - Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
• C04B 103/00 - Function or property of the active ingredients
• C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone

Abstract

A coating composition is described, for use in the foundry, in particular comprising particulate, amorphous silicon dioxide (SiO2) and an aqueous phase having a pH of at most 5, and also coated, waterglass-bound foundry molding elements, especially coated, waterglass-bound foundry molds and foundry cores, which each comprise a coating composition of the invention. Further described is the use of a coating composition of the invention for producing a coating on a waterglass-bound foundry molding element and a method for producing a waterglass-bound foundry molding element (mold or core) coated with a water-containing refractory coating. Likewise specified is a kit whose contents include a coating composition of the invention.

IPC Classes  ?

• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 9/10 - CoresManufacture or installation of cores
• C04B 35/195 - Alkaline earth aluminosilicates, e.g. cordierite
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
• C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
• C04B 35/632 - Organic additives
• C04B 35/634 - Polymers
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 41/68 - Silicic acidSilicates
• C08K 3/36 - Silica

Abstract

A description is given of the use of an additive mixture (A) for combination with a solution or dispersion (B) comprising waterglass, for producing a moulding material mixture for producing articles from the group consisting of foundry moulds and foundry cores; a multi-component binder system comprising (A) an additive mixture and (B) a solution or dispersion comprising waterglass; a moulding material mixture comprising a mould base material (C) and also components (A) and (B) of such a multi-component binder system; a method for producing an article from the group consisting of foundry moulds and foundry cores; articles from the group consisting of foundry moulds and foundry cores; and the use of such an article for metal casting, preferably for light metal casting, more particularly for aluminium casting.

IPC Classes  ?

• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• C04B 14/06 - QuartzSand
• C04B 22/16 - Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
• C04B 28/26 - Silicates of the alkali metals
• B33Y 80/00 - Products made by additive manufacturing
• C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone

Abstract

What is described is the use of a particulate material comprising, as its sole constituent or as one of multiple constituents, a particulate synthetic amorphous silicon dioxide having a particle size distribution with a median in the range from 0.1 to 0.4 μm, determined by means of laser scattering, as additive for a molding material mixture at least comprising: a refractory mold base material having an AFS grain fineness number in the range from 30 to 100, particulate amorphous silicon dioxide having a particle size distribution with a median in the range from 0.7 to 1.5 μm, determined by means of laser scattering, and water glass, for increasing the moisture resistance of a molding producible by hot curing of the molding material mixture. Also described are corresponding processes, mixtures and kits.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents

Abstract

An insulating product for the refractory industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product are provided. Likewise the use of a matrix encapsulation process in the production of an insulating product for the refractory industry and a corresponding insulating product and/or an insulating material as intermediate for production of such a product are provided.

IPC Classes  ?

• C04B 33/04 - ClayKaolin
• C04B 33/13 - Compounding ingredients
• C04B 33/32 - Burning methods

Abstract

The invention relates to a method for production of an article selected from the group consisting of casting mould, core, feeder and moulding compound for production of part of a casting mould, a core or a feeder, having the following steps: (S1) producing or providing in the foundry: - a first component (A), comprising a first binder component (b1) of a binder system and an amount of a first mould base material, and, spatially separately therefrom, - a second component (B), comprising a second binder component (b2) of the binder system and an amount of a second mould base material, wherein - the first binder component (b1) and the second binder component (b2) are suitable for chemical reaction with one another and for curing of a mixture of the first component (A) and of the second component (B), (S2) mixing with contacting of the first component (A) and of the second component (B) in a predetermined mass ratio, so as to result in a self-curing moulding compound.

IPC Classes  ?

• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A description is given of a binder system, intended more particularly for use in a process from the group consisting of polyurethane cold-box processes and polyurethane no-bake processes.

IPC Classes  ?

• B32B 3/10 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
• C08G 18/08 - Processes
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 7/04 - Coating
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08K 5/21 - UreaDerivatives thereof, e.g. biuret

Abstract

What is described are isocyanate compositions comprising β-dicarbonyl compounds and a binder system, especially for use in a process from the group consisting of polyurethane cold-box process and polyurethane no-bake process, with this isocyanate composition as polyisocyanate component.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 18/08 - Processes
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 7/05 - Forming flame retardant coatings or fire resistant coatings

Abstract

The invention relates to a method for producing an article for use in the foundry industry selected from the group consisting of molds, cores, feed elements, and molding material mixtures, having the following steps: (S1) producing or providing a binder system which comprises, as components in three spatially separate containers, one component (A), comprising particulate amorphous silicon dioxide, a first liquid component (B), comprising sodium silicate, and a second liquid component (C), comprising dissolved aluminate ions in an aqueous phase; and (S2) contacting a mold base material (D) and the contents of all of the aforementioned components (A), (B), and (C) of the binder system in specified quantity ratios in one or more steps such that a molding material mixture is produced in which the aluminate ions and the particulate amorphous silicon dioxide are entirely or partly mixed into the sodium silicate, wherein steps (S1) and (S2) are carried out in a system for producing molding material mixtures. The invention also relates to corresponding molding material mixtures as well as devices and uses.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 5/00 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
• B22C 9/00 - Moulds or coresMoulding processes
• C01B 33/26 - Aluminium-containing silicates
• B33Y 80/00 - Products made by additive manufacturing
• C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements

Abstract

Described is a method of preparing a particulate refractory composition for use in the manufacture of foundry moulds and cores from spent foundry moulds or cores formed of refractory material and a binder containing water glass, the method comprising the following steps: providing broken material from spent foundry moulds or cores or preparing broken material from spent foundry moulds or cores, wherein the broken material comprises particles and/or aggregates of particles of refractory material having hardened water glass binder on their surface, mixing the broken material with particulate amorphous oxide comprising silicon dioxide in an amount of 85% by weight or more, based on the total amount of the particulate amorphous oxide, to give a mixture and subjecting the mixture to a heat treatment at a temperature of 400° C. or higher. Also described are a corresponding use, a reclamation mixture, and a method of making a foundry mould or core.

IPC Classes  ?

• B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
• B22C 5/10 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
• B22C 5/18 - Plants for preparing mould materials
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents

Goods & Services

(1) Chromium oxides; Foundry sand

Abstract

A description is given of the use of a refractory coating composition having a solids fraction of more than 69 wt %, based on the total mass of the coating composition, and also having a loss on ignition of less than 0.6 wt %, based on the total mass of the solids fraction of the coating composition, for producing a refractory coating on the inner walls of a centrifugal casting mold by means of a spray application. Further described is a method for producing a centrifugal casting mold provided on its inner walls with a refractory coating, for use in the centrifugal casting process, and also a method for producing a casting in the centrifugal casting process, preferably having a structured surface. Also described is a centrifugal casting mold for use in the centrifugal casting process, having a refractory coating on the inner walls of the centrifugal casting mold.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
• B22C 9/06 - Permanent moulds for shaped castings
• B22D 13/10 - Accessories for centrifugal casting apparatus, e.g. moulds, linings thereforMeans for feeding molten metal, cleansing moulds or removing castings
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
• C04B 35/482 - Refractories from grain sized mixtures
• C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products

Abstract

What is described is the use of a composition containing one or more formaldehyde scavengers for production of a coating on a main body of a mold or core for metal casting that emits formaldehyde when heated, wherein the coating forms a surface of the mold or core that comes into contact with a metal melt in the casting operation.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• C09D 7/63 - Additives non-macromolecular organic
• C09D 175/04 - Polyurethanes
• C09D 7/61 - Additives non-macromolecular inorganic
• C09D 7/48 - Stabilisers against degradation by oxygen, light or heat
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C09D 161/02 - Condensation polymers of aldehydes or ketones only

Abstract

The invention relates to the use of a wash composition for producing cores for die casting, to a kit for producing cores for use in die casting, to a method for producing cores for use in die casting, to cores for use in die casting, and to the use of such cores in die casting, in particular of lightweight metals.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 17/00 - Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
• C04B 28/26 - Silicates of the alkali metals
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone

Abstract

Described are a composition comprising furfuryl silicates and furfuryl alcohol, especially for use as acid-curable binder, and processes for producing such a composition.

IPC Classes  ?

• C04B 26/32 - Compounds having one or more carbon-to-metal or carbon-to-silicon linkages containing silicon
• C07F 7/07 - Cyclic esters
• C07F 7/04 - Esters of silicic acids
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
• C04B 26/10 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 28/24 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl ammonium or alkali metal silicatesCompositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing silica sols
• C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
• C04B 111/23 - Acid resistance
• C04B 111/28 - Fire resistance

Abstract

A process (i) for producing a metal casting or (ii) for producing a cured shaped part for use in the casting of metallic castings is described. Furthermore, the use of an aliphatic polymer which comprises structural units containing hydroxy groups and has been crosslinked by etherification as binder of a shaped part for use in the casting of metallic castings is described. A shaped part for use in the casting of metallic castings, comprising at least one base mould material and a cured binder comprising or consisting of an aliphatic polymer which comprises structural units containing hydroxy groups and has been crosslinked by etherification, is likewise described. In addition, a cured shaped part which is producible by a process according to the invention and also a mould material mixture for use in the process of the invention are described.

IPC Classes  ?

• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 1/20 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins

Abstract

90 of less than 45 μm or a corresponding mixture as additive for production of a molding material mixture comprising waterglass and particulate amorphous silicon dioxide, which is cured by chemical reaction of constituents of the molding material mixture with one another, in the production of a casting mold or a core, to facilitate the breakdown and/or to increase the regeneratability of the casting mold or core.

IPC Classes  ?

• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
• B22C 5/10 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
• B33Y 10/00 - Processes of additive manufacturing

Abstract

This technology relates to refractory coatings used in metal casting by the foundry industry. Refractory coatings are often used to coat foundry cores and molds for the purpose of improving the quality of castings formed in connection with the cores or molds, particularly at the surface of the casting. Whereas traditional coatings comprise water based solvents that require excessive drying times or HAPs that emit hazardous VOCs, preferred embodiments of the present invention comprise refractory coatings having VOC-exempt ester based solvents, such as a dimethyl carbonate (DMC). Other preferred embodiments of the present invention comprise methods for reduction of VOC content in a foundry article.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates

Goods & Services

Chromium oxides; Foundry sand

Abstract

The invention relates to a method for producing an article for use in the foundry industry selected from a group consisting of granular material for producing a pourable additive, a solid pourable additive, an inorganic binder, and a moulding material mixture. The invention also relates to a corresponding granular material comprising particulate amorphous silica and to a kit for producing an inorganic binder. The invention also relates to an apparatus for carrying out the method according to the invention and to a corresponding use of particulate amorphous silica and to the corresponding use of a granular material.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents

Abstract

The invention relates to the use of an additive mixture (A) for combining with a solution or dispersion (B) including water glass for the production of a moulding material mixture for the production of items from the group consisting of casting moulds and casting cores; a multi-component binder system comprising (A) an additive mixture and (B) a solution or dispersion including water glass; a moulding material mixture comprising a base moulding material (C) and the components (A) and (B) of a multi-component binder system of this type; a method for producing an item from the group consisting of casting moulds and casting cores; items from the group consisting of casting moulds and casting cores; and the use of an item of this type for metal casting, preferably for light metal casting, in particular for aluminium casting.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• C04B 28/26 - Silicates of the alkali metals
• B22C 9/10 - CoresManufacture or installation of cores
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The invention relates to a shooting head (1) for shooting solid material, in particular a molding material mixture, into a mold cavity (95) in order to produce molded bodies, in particular casting cores, small molds, and/or feeders for casting processes, comprising an inlet opening (19) for supplying the solid material, an outlet opening (15) for discharging the solid material, and a flow chamber (49) which connects the inlet opening (19) to the outlet opening (15). The invention is characterized by a flushing opening (77) which leads to an inner surface (61) of the flow chamber (49) and is designed to supply a flushing medium into the flow chamber (49). Solid material remaining in the shooting head (1) can be prevented from hardening by means of the flushing medium. The invention additionally relates to a core shooter and to a method for producing molded bodies.

IPC Classes  ?

• B22C 7/06 - Core boxes
• B22C 13/12 - Moulding machines for making moulds or cores of particular shapes for cores
• B22C 15/24 - Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Abstract

The invention relates to a core box (1) for a casting process for producing molded bodies, in particular lost cores, feeders, and casting molds, made of a molding material mixture, comprising at least one first box part (2) and a second box part (4) which together form at least one section of the core box (1) and define a contoured region (6) for a molded body to be produced. The first box part (2) has a first separating surface (8), and the second box part (4) has a second separating surface (10), said surfaces sealingly resting against each other in a closed state of the core box (1) and being arranged at a distance from each other in an open state of the core box (1). The invention is characterized by one or more spray openings (14, 15) in the contoured region (6) of the first box part (2) for injecting a release agent (12) into the core box (1) when the core box is in a closed state. The invention additionally relates to a method and a use.

IPC Classes  ?

• B22C 7/06 - Core boxes
• B22C 23/02 - Devices for coating moulds or cores
• B22C 15/24 - Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Abstract

The invention relates to the use of a particulate material comprising a particle-shaped synthetic amorphic silicon dioxide having a particle size distribution with a median ranging from 0.1 to 0.4 µm, determined using laser diffraction, in the form of an individual component or one of a plurality of components as an additive for a molding material mixture, comprising at least: a refractory molding base material with an AFS grain fineness number ranging from 30 to 100, particulate amorphic silicon dioxide having a particle size distribution with a median ranging from 0.7 to 1.5 µm, determined using laser diffraction, and water glass in order to increase the moisture resistance of a molded body which can be produced by heat curing the molding body mixture. The invention also relates to corresponding methods, mixtures, and kits.

IPC Classes  ?

• B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 9/20 - Stack moulds, i.e. arrangement of multiple moulds or flasks

Abstract

What are described are a process for producing an insulating product for the construction materials industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Also described are the use of a matrix encapsulation method for production of composite particles in the production of an insulating product for the construction materials industry or of an insulating material as intermediate for production of such a product, and the corresponding use of the composite particles producible by means of a matrix encapsulation method.

IPC Classes  ?

• C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
• C04B 33/04 - ClayKaolin
• C04B 33/14 - Colouring matters
• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• C04B 35/64 - Burning or sintering processes
• C04B 38/02 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding chemical blowing agents
• C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
• C04B 18/02 - Agglomerated materials
• C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay

Abstract

The invention relates to a binder system, in particular for use in a process from the group consisting of polyurethane cold box processes and polyurethane no-bake processes.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 18/08 - Processes
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08K 5/21 - UreaDerivatives thereof, e.g. biuret
• C08L 61/14 - Modified phenol-aldehyde condensates

Abstract

The invention relates to a binder system, in particular for use in a process from the group consisting of polyurethane cold box processes and polyurethane no-bake processes.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 18/08 - Processes
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08K 5/21 - UreaDerivatives thereof, e.g. biuret
• C08L 61/14 - Modified phenol-aldehyde condensates

Abstract

What are described are a process for producing an insulating product for the refractory industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product. Likewise described are the use of a matrix encapsulation process in the production of an insulating product for the refractory industry and a corresponding insulating product and/or an insulating material as intermediate for production of such a product.

IPC Classes  ?

• C04B 33/04 - ClayKaolin
• C04B 33/13 - Compounding ingredients
• C04B 33/32 - Burning methods

Abstract

The invention relates to an isocyanate composition which contains ß-dicarbonyl compounds, and a binder system, particularly for use in a process from the group consisting of polyurethane cold box process and polyurethane no bake process, using the isocyanate composition according to the invention as the polyisocyanate component.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 14/04 - Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups of aldehydes with phenols
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08K 5/11 - EstersEther-esters of acyclic polycarboxylic acids

Goods & Services

Chemical products for the foundry industry, especially additives for use in foundries for the manufacture of moulds, cores and/or risers; binders for use in foundries for the manufacture of moulds, cores and/or risers.

Goods & Services

Foundry molds made of metal; refractory shapes made of metal; feeders for use in foundries; finished cores used in foundry engineering. Foundry molds, not of metal; refractory molds, not of metal; feeders for use in foundry engineering, not of metal; finished cores, not of metal used in foundry engineering, refractory filters for molten metal, in particular to prevent the entry of impurities during casting.

Goods & Services

Foundry molds made of metal; refractory shapes made of metal; feeders for use in foundries; finished cores used in foundry engineering. Foundry molds, not of metal; refractory shapes, not of metal; feeders for use in foundry engineering, not of metal; finished cores, not of metal used in foundry engineering.

Goods & Services

Chemicals used in industry; chemicals used in science; chemicals used in photography; chemicals for use in agriculture except fungicides, herbicides, insecticides and parasiticides; chemicals used in horticulture except fungicides, herbicides, insecticides and parasiticides; chemicals used in forestry except fungicides, herbicides, insecticides and parasiticides; synthetic resins, unprocessed; unprocessed plastics; manures; fire extinguishing compositions; tempering preparations; soldering preparations; chemical substances for preserving foodstuffs; tanning substances, namely, tanning agents for use in the manufacture of leather; adhesives used in industry; inorganic binding agents for manufacturing casting moulds and foundry cores and risers; iron-oxide-based foundry sand additives used in the manufacture of metallic castings; iron-oxide-based core sand additives used in the manufacture of metallic castings

Abstract

A description is given of a method for producing a molding material mixture or for producing a molding material mixture and a molding therefrom, preferably casting molds or cores, for use in the foundry industry, where the molding material mixture comprises a mold base material and a solution or dispersion comprising lithium-containing waterglass, comprising the following steps: (1) producing or providing a kit at least comprising as separate components: (K1) an aqueous solution or dispersion comprising waterglass and (K2a) a first waterglass-free solution or dispersion comprising lithium ions in solution in water, and also preferably (K2b) a second waterglass-free solution or dispersion, preferably comprising lithium ions in solution in water with a lower concentration than in component (K2a), and thereafter (2) producing a mixture of the mold base material with a fraction of component (K1) and with a fraction of component (K2a), and also optionally with a fraction of component (K2b). Further described is an aforementioned kit, more particularly for application in the method of the invention. An installation is specified as well for producing an intermediate solution or dispersion, comprising lithium-containing waterglass, for use in producing a molding material mixture or for producing a molding material mixture and a molding therefrom.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents

Abstract

Described is a method of preparing a particulate refractory composition for use in the manufacture of foundry moulds and cores from spent foundry moulds or cores formed of refractory material and a binder containing water glass, the method comprising the following steps: providing broken material from spent foundry moulds or cores or preparing broken material from spent foundry moulds or cores, wherein the broken material comprises particles and/or aggregates of particles of refractory material having hardened water glass binder on their surface, mixing the broken material with particulate amorphous oxide comprising Silicon dioxide in an amount of 85 % by weight or more, based on the total amount of the particulate amorphous oxide, to give a mixture and subjecting the mixture to a heat treatment at a temperature of 400 °C or higher. Also described are a corresponding use, a reclamation mixture, and a method of making a foundry mould or core.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 5/18 - Plants for preparing mould materials
• B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
• B22C 5/10 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives

Abstract

A method is described (i) for producing a metal casting and/or (ii) for producing a cured moulding, selected from the group consisting of a casting mould, a core and a feeder, for use when casting metal castings, and also a moulding material mixture for use in this method. Also described is the use of an aliphatic polymer, comprising hydroxy groups and crosslinked by one or more aliphatic polyisocyanates, as a binder of a moulding for use when casting metal castings. Likewise described is a cured moulding for use when casting metal castings, including a moulding with a green bond, and preferably able to be produced by the method according to the invention. Also described is the use of biopolymers from the group of poly-D-glucosamines as a binder or binder component for producing a moulding with a green bond in the foundry industry.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/10 - CoresManufacture or installation of cores

Abstract

A description is given of the use of a coating composition with a solids content of more than 69% by weight, with respect to the total mass of the coating composition, and also with an annealing loss of less than 0.6% by weight, with respect to the total mass of the solids content of the coating composition, for producing a coating on the inner wall of a centrifugal casting mould by means of spray application. A description is also given of a method for producing a centrifugal casting mould provided with a coating on the inner wall for use in the centrifugal casting process and also a method for producing a casting by the centrifugal casting process, preferably with a structured surface. A description is also given of a centrifugal casting mould for use in the centrifugal casting method, with a coating on the inner wall of the centrifugal casting mould.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22D 13/10 - Accessories for centrifugal casting apparatus, e.g. moulds, linings thereforMeans for feeding molten metal, cleansing moulds or removing castings
• B22C 9/06 - Permanent moulds for shaped castings

Abstract

Described is the use of a composition containing one or more formaldehyde scavengers for producing a coating on a main part of a metal casting mold or core, said main part emitting formaldehyde when heating up, the coating forming a mold or core surface that comes into contact with a molten metal during the casting process.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes

Goods & Services

Chemical products for the foundry industry, especially additives for use in foundries for the manufacture of moulds, cores and risers; binders for use in foundries for the manufacture of moulds, cores and risers

Abstract

2) and an aqueous phase having a pH of at most 5, and also coated, waterglass-bound foundry molding elements, especially coated, waterglass-bound foundry molds and foundry cores, which each comprise a coating composition of the invention. Further described is the use of a coating composition of the invention for producing a coating on a waterglass-bound foundry molding element and a method for producing a waterglass-bound foundry molding element (mold or core) coated with a water-containing refractory coating. Likewise specified is a kit whose contents include a coating composition of the invention.

IPC Classes  ?

• C04B 35/195 - Alkaline earth aluminosilicates, e.g. cordierite
• C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 9/10 - CoresManufacture or installation of cores
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
• C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
• C04B 35/632 - Organic additives
• C04B 35/634 - Polymers
• C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 41/68 - Silicic acidSilicates
• C08K 3/36 - Silica

Abstract

The present invention relates to a phenolic resin for use in the phenolic resin component of a two-component binder system for the polyurethane cold box process, to a two-component binder system for use in the polyurethane cold box process, to a molding material mixture for curing by contacting with a tertiary amine, to the use of a corresponding phenolic resin, of a corresponding phenol component, of a corresponding two-component binder system or of a corresponding molding material mixture. The present invention relates, moreover, to an article from the group consisting of feeders, foundry molds and foundry cores, producible from a corresponding molding material mixture, to a process for preparing a phenolic resin, and to a process for producing an article from the group consisting of feeders, foundry molds and foundry cores.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/08 - Processes
• C08G 18/67 - Unsaturated compounds having active hydrogen

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; chemical additives for use as binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; chemical additives for use as binding agents comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry.

Goods & Services

Foundry molds made of metal for metal casting; Refractory shapes made of metal; feeders for use in foundry engineering in the nature of metal component parts of moulds for casting; finished cores of metal used in foundry engineering, namely, metal component parts of moulds for casting Foundry molds, not of metal, for casting metal; Refractory molds, not of metal; feeders for use in foundry engineering, not of metal, namely, component parts of non-metal moulds for casting; finished cores, not of metal, used in foundry engineering, namely, component parts of non-metal moulds for casting; refractory filters for molten metal, in particular to prevent the entry of impurities during casting

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one Phenolic resin component and/or at least one Isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry.

Goods & Services

Foundry molds made of metal for metal casting; Refractory shapes made of metal; feeders for use in foundry engineering in the nature of metal component parts of moulds for casting; finished cores of metal used in foundry engineering, namely, metal component parts of moulds for casting Foundry molds, not of metal, for casting metal; Refractory molds, not of metal; feeders for use in foundry engineering, not of metal, namely, component parts of non-metal moulds for casting; finished cores, not of metal, used in foundry engineering, namely, component parts of non-metal moulds for casting; refractory filters for molten metal, in particular to prevent the entry of impurities during casting

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry.

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry.

Abstract

The present invention relates to a mold material mixture for producing moldings for the foundry industry, in particular for producing foundry molds, cores or feeders for the foundry industry, which comprises A) one or more pourable, refractory fillers, B) a binder system comprising i) formaldehyde, a formaldehyde donor and/or precondensates of formaldehyde and ii) an amino acid. The present invention additionally relates to the use of amino acids in a mold material mixture for producing moldings for the foundry industry or for producing moldings for the foundry industry, a process for producing a mold material mixture and a process for producing a molding for the foundry industry.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry.

Goods & Services

(1) Chemical products for the foundry industry, in particular binding agents for the use in foundries for the production of moulds, cores and feeders used in the manufacture of metallic castings; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and feeders used in the manufacture of metallic castings; binding agent comprising at least one Phenolic resin component for binding moulds, cores and feeders used in the manufacture of metallic castings; binding agent comprising at least one Isocyanate component for binding moulds, cores and feeders used in the manufacture of metallic castings; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents for moulding sands in the foundry industry and for core sands used in the manufacture of metallic castings.

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and feeders; chemical binding agents for the use in foundries for the production of moulds, cores and feeders; unprocessed polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and feeders; chemical preparations in the nature of binding agents comprising at least one unprocessed Phenolic resin component and at least one Isocyanate component for binding moulds, cores and feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and for core sands in the foundry industry

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for [ ore ] * core * sands in the foundry industry

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; chemical additives for use as binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores [ andd] * and * /or feeders; chemical additives for use as binding agents comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for [ ore ] * core * sands in the foundry industry

Abstract

c) refractory materials.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances

Goods & Services

Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds, cores and/or feeders; binding agent comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry and/or for [ ore ] * core * sands in the foundry industry

Goods & Services

Chemical products, not containing amorphous networks of polymeric aluminosilicates for the foundry industry, in particular additives for the use in foundries for the production of moulds, cores and/or feeders; binding agents, not containing amorphous networks of polymeric aluminosilicates, for the use in foundries for the production of moulds, cores and/or feeders; polyurethane-based artificial resin binders, not containing amorphous networks of polymeric aluminosilicates, for the use in foundries for the production of moulds, cores and/or feeders; binding agent, not containing amorphous networks of polymeric aluminosilicates, comprising at least one phenolic resin component and/or at least one isocyanate component for binding moulds, cores and/or feeders in the foundry industry; unprocessed artificial resins, in particular artificial and synthetic resins, not containing amorphous networks of polymeric aluminosilicates, as binding agents and additives for moulding sands in the foundry industry and/or for core sands in the foundry industry

Abstract

This invention relates to compositions and methods for reduction of formaldehyde odor and emission during the production and curing of cores and molds, particularly those cores and molds of the foundry industry which comprise ester curable phenolic binders. More specifically, included herein is an ester-curative comprising an ester and resorcinol which, when provided in a composition with a resin and an aggregate, effectively scavenges unreacted formaldehyde thereby reducing emission and odor of the same from the composition.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• C08K 5/13 - PhenolsPhenolates
• C08L 61/06 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

Goods & Services

(1) Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds; chemical products for the foundry industry, in particular additives for the use in foundries for the production of cores; chemical products for the foundry industry, in particular additives for the use in foundries for the production of feeders; binding agents for the use in foundries for the production of moulds; binding agents for the use in foundries for the production of cores; binding agents for the use in foundries for the production of feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds; polyurethane-based artificial resin binders for the use in foundries for the production of cores; polyurethane-based artificial resin binders for the use in foundries for the production of feeders; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding moulds in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding cores in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding feeders in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for core sands in the foundry industry.

Goods & Services

(1) Chemical products for the foundry industry, in particular additives for use in foundries for the production of moulds; chemical products for the foundry industry, in particular additives for use in foundries for the production of cores; chemical products for the foundry industry, in particular additives for use in foundries for the production of feeders; binding agents for use in foundries for the production of moulds; binding agents for use in foundries for the production of cores; binding agents for use in foundries for the production of feeders.

Goods & Services

(1) Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds; chemical products for the foundry industry, in particular additives for the use in foundries for the production of cores; chemical products for the foundry industry, in particular additives for the use in foundries for the production of feeders; binding agents for the use in foundries for the production of moulds; binding agents for the use in foundries for the production of cores; binding agents for the use in foundries for the production of feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds; polyurethane-based artificial resin binders for the use in foundries for the production of cores; polyurethane-based artificial resin binders for the use in foundries for the production of feeders; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding moulds in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding cores in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding feeders in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for core sands in the foundry industry.

Goods & Services

(1) Chemical products for the foundry industry, in particular additives for the use in foundries for the production of moulds; chemical products for the foundry industry, in particular additives for the use in foundries for the production of cores; chemical products for the foundry industry, in particular additives for the use in foundries for the production of feeders; binding agents for the use in foundries for the production of moulds; binding agents for the use in foundries for the production of cores; binding agents for the use in foundries for the production of feeders; polyurethane-based artificial resin binders for the use in foundries for the production of moulds; polyurethane-based artificial resin binders for the use in foundries for the production of cores; polyurethane-based artificial resin binders for the use in foundries for the production of feeders; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding moulds in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding cores in the foundry industry; binding agent comprising at least one phenolic resin component and at least one isocyanate component for binding feeders in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for moulding sands in the foundry industry; unprocessed artificial resins in particular artificial and synthetic resins as binding agents and additives for core sands in the foundry industry.

Abstract

The invention relates to core-shell particles for use as a filler for feeder compositions for producing feeders, comprising (a) a core which possesses one or more cavities and a wall surrounding these cavities, where the core (a) has an average diameter in the range from 0.15 to 0.45 mm, (b) a shell enclosing the core and consisting of or comprising (b1) particles comprising or consisting of a material from the group consisting of calcined kaolin or cordierite, where the particles (b1) have a d10 of at least 0.05 μm and a d90 of at most 45 μm, and also (b2) a binder which binds the particles (b1) to one another and to the core (a).

IPC Classes  ?

• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives

Abstract

A description is given of a method (i) for producing a metal casting or (ii) for producing a cured moulding for use when casting metal castings. Also described is the use of an aliphatic polymer crosslinked by etherification and comprising structural units containing hydroxy groups as a binder of a moulding for use when casting metal castings. Likewise described is a moulding for use when casting metal castings, comprising at least one basic moulding material and a cured binder comprising or consisting of an aliphatic polymer crosslinked by etherification and comprising structural units containing hydroxyl groups. Also described is a cured moulding that can be produced by a method according to the invention, and also a moulding material mixture for use in the method according to the invention.

IPC Classes  ?

• B22C 1/20 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening

Abstract

The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.

IPC Classes  ?

• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• C04B 35/634 - Polymers
• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• C04B 38/08 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by adding porous substances
• C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof

Abstract

The invention relates to a composition containing furfuryl silicates and furfuryl alcohol, in particular for use as an acid-curable binder, and to a method for producing such a composition.

IPC Classes  ?

• C07F 7/08 - Compounds having one or more C—Si linkages
• C04B 26/10 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• C04B 26/32 - Compounds having one or more carbon-to-metal or carbon-to-silicon linkages containing silicon
• C08G 77/04 - Polysiloxanes
• C07F 7/04 - Esters of silicic acids

Goods & Services

resin coated foundry sand for foundry cores and molds

Abstract

This technology relates to refractory coatings used in metal casting by the foundry industry. Refractory coatings are often used to coat foundry cores and molds for the purpose of improving the quality of castings formed in connection with the cores or molds, particularly at the surface of the casting. Whereas traditional coatings comprise water based solvents that require excessive drying times or HAPs that emit hazardous VOCs, preferred embodiments of the present invention comprise refractory coatings having VOC-exempt ester based solvents, such as DMC. Other preferred embodiments of the present invention comprise methods for reduction of VOC content in a foundry article.

IPC Classes  ?

• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• C08K 5/10 - EstersEther-esters
• C09D 7/20 - Diluents or solvents

Abstract

This technology relates to refractory coatings used in metal casting by the foundry industry. Refractory coatings are often used to coat foundry cores and molds for the purpose of improving the quality of castings formed in connection with the cores or molds, particularly at the surface of the casting. Whereas traditional coatings comprise water based solvents that require excessive drying times or HAPs that emit hazardous VOCs, preferred embodiments of the present invention comprise refractory coatings having VOC-exempt ester based solvents, such as DMC. Other preferred embodiments of the present invention comprise methods for reduction of VOC content in a foundry article.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns

Abstract

This technology relates to refractory coatings used in metal casting by the foundry industry. Refractory coatings are often used to coat foundry cores and molds for the purpose of improving the quality of castings formed in connection with the cores or molds, particularly at the surface of the casting. Whereas traditional coatings comprise water based solvents that require excessive drying times or HAPs that emit hazardous VOCs, preferred embodiments of the present invention comprise refractory coatings having VOC-exempt ester based solvents, such as DMC. Other preferred embodiments of the present invention comprise methods for reduction of VOC content in a foundry article.

IPC Classes  ?

• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates

Abstract

A description is given of a method for producing a moulding material mixture or for producing a moulding material mixture and a moulded body thereof, preferably casting moulds or cores, for use in the casting industry, wherein the moulding material mixture comprises a moulding base material and a solution or dispersion comprising lithium-containing sodium silicate, comprising the steps of: (1) producing or providing a kit at least comprising as separate components: (K1) an aqueous solution or dispersion comprising sodium silicate and (K2a) a first sodium-silicate-free solution or dispersion comprising lithium ions dissolved in water and preferably (K2b) a second sodium-silicate-free solution or dispersion, preferably comprising lithium ions dissolved in water of a lower concentration than in component (K2a), and then (2) producing a mixture of the moulding base material with a proportion of the component (K1) and with a proportion of the component (K2a) and also optionally with a proportion of the component (K2b). Also described is an aforementioned kit, in particular for use in the method according to the invention. Also specified is an installation for producing an intermediary solution or dispersion, comprising lithium-containing sodium silicate for use in the production of a moulding material mixture or for the production of a moulding material mixture and a moulded body thereof.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents

Abstract

A method for producing a feeder element is described. The method includes (a) producing composite particles having a particle size of less than 2 mm in a matrix encapsulation method with the following steps: (a1) producing droplets of a suspension from at least (i) one or more refractory substances, (ii) one or more of fillers having a bulk density in the range from 10 to 350 g/L, expandants, and pyrolysable fillers, (iii) as continuous phase, a solidifiable liquid, (a2) solidifying the droplets with the refractory substance(s) and density-reducing substance(s) are encapsulated therein, (a3) treating the hardened droplets to form composite particles, (b) mixing the composite particles with a binder and, optionally, further constituents to give a feeder composition, (c) shaping and curing the feeder composition to give a feeder element. Also described are a method for producing refractory composite particles and the use of the composite particles.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 1/20 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22D 7/10 - Hot tops therefor

Abstract

The invention relates to a method for producing an insulating product for the refractory industry or an insulating material as an intermediate product for producing such a product and to a corresponding insulating material or insulating product. The invention further relates to the use of a matrix encapsulation method in the production of an insulating product for the refractory industry and to a corresponding insulating product and/or insulating material as an intermediate product for producing such a product.

IPC Classes  ?

• C04B 28/24 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl ammonium or alkali metal silicatesCompositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing silica sols

Abstract

What are described are a process for producing an insulating product for the building materials industry or an insulation material as an intermediate product for the production of such a product, and a corresponding insulation material or an insulating product. What are further described are the use of a matrix encapsulation method for producing composite particles in the production of an insulating product for the building materials industry or of an insulation material as an intermediate product for the production of such a product and the corresponding use of the composite particles producible by means of a matrix encapsulation method.

IPC Classes  ?

• C04B 30/00 - Compositions for artificial stone, not containing binders

Abstract

“Lost” cores for use high pressure die casting, the cores preferably having a water-soluble synthetic ceramic aggregate having an appropriate strength and tolerance for various casting pressures and temperatures, an inorganic binder having sodium silicate, an additive having particulate amorphous silicon dioxide, and a refractory coating, wherein the cores have the capacity to be removed from a casting by dissolution with water.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/10 - CoresManufacture or installation of cores
• B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
• B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 9/00 - Moulds or coresMoulding processes

Abstract

The invention relates to a method for producing casting molds, cores and basic mold materials regenerated therefrom, a mixture for combining with a solution or dispersion comprising water glass, for producting casting molds and/or cores, a mold material mixture, a basic mold material mixture and a casting mold or a core. The invention furthermore relates to the corresponding use of a quantity of particulate layered silicates having a d90 value less than 45 μm or a corresponding mixture as an additive for producing a water glass and a mold material mixture comprising particulate, amorphous silicon-dioxide, said mixture being cured by chemically reacting components of the mold material mixture with each other, during production of a casting mold or a core, in order to facilitate disintegration and/or to increase the regeneration capability of the casting mold or core.

IPC Classes  ?

• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
• B22C 5/10 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
• B22C 7/06 - Core boxes
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 21/00 - FlasksAccessories therefor
• B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
• B28B 7/34 - Moulds, cores, or mandrels of special material, e.g. destructible materials

Abstract

The invention relates to the use of a size composition, comprising an aqueous phase having a maximum pH value of 5 and one or more refractory materials, in the foundry industry and to sized, soluble glass-bonded foundry molded articles, in particular foundry molds and/or foundry cores, each of which comprise such a size composition. The invention further relates to a method for producing a sized, soluble glass-bound foundry molded article. The invention further relates to a kit, containing, inter alia, such a size composition, comprising aqueous acid and one or more refractory materials.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 19/00 - Components or accessories for moulding machines for making moulds or cores

Abstract

The invention relates to a size composition for the foundry industry for use in the foundry, in particular comprising certain organic ester compounds of a formula (I) and particulate, amorphous silicon dioxide (SiO2); and sized foundry molded articles, in particular foundry molds and/or foundry cores, each of which comprise a size composition according to the invention. The invention further relates to the use of a size composition according to the invention in order to produce a covering on a foundry molded article and to a method for producing a foundry molded article sized by means of an aqueous size. The invention further relates to a kit, containing, inter alia, a size composition according to the invention.

IPC Classes  ?

• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
• B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
• B22C 19/00 - Components or accessories for moulding machines for making moulds or cores

Abstract

The invention relates to a sizing composition for use in the foundry, in particular comprising particulate, amorphous silicon dioxide (SiO2) and an aqueous phase with a pH value of at most 5, and to sized, water glass-bonded foundry shapes, in particular sized, water glass-bonded foundry molds and foundry cores, each of which comprising a sizing composition according to the invention. The invention further relates to the use of a sizing composition according to the invention for producing a coating on a water glass-bonded foundry shape and to a method for producing a water glass-bonded foundry shape (mold or core) which has been sized with a water-containing sizing material. A kit containing inter alia a sizing composition according to the invention is also disclosed.

IPC Classes  ?

• B05D 7/24 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials

Abstract

The invention relates to a phenol resin for use in the phenol resin component of a two-component binder system for the polyurethane cold box process, a two-component binder system for use in the polyurethane cold box process, a molding material mixture for hardening by contacting with a tertiary amine, the use of a corresponding phenol resin, a corresponding phenol component, a corresponding two-component binder system or a corresponding molding material mixture. The invention further relates to an article from the group consisting of risers, foundry molds and foundry cores, which can be produced from a corresponding molding material mixture, a method for producing a phenol resin and a method for producing an article from the group consisting of risers, foundry molds and foundry cores.

IPC Classes  ?

• C08G 8/24 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups
• C08G 18/54 - Polycondensates of aldehydes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents

Abstract

The present invention relates to a moulding material mixture for production of mouldings for the foundry industry, especially for production of foundry moulds, cores or feeders, for the foundry industry, comprising A) one or more pourable refractory fillers, B) a binder system comprising i) formaldehyde, a formaldehyde donor and/or precondensates of formaldehyde, and ii) an amino acid. The present invention additionally relates to the use of amino acids in a moulding material mixture for production of mouldings for the foundry industry or for production of mouldings for the foundry industry, to a process for producing a moulding material mixture and to a process for producing a moulding for the foundry industry.

IPC Classes  ?

• B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds