Abrégé

The present invention relates to a method of preparing 2-aminopropan-1-ol from hydroxyacetone by reductive amination using aqueous ammonia and a co-solvent. The method comprises steps of: mixing hydroxyacetone and aqueous ammonia at a temperature of not more than 20℃ to obtain an oxazoline intermediate product; and adding a solvent alone, or the solvent and a second aqueous ammonia, to the oxazoline product in the presence of a nickel catalyst and hydrogen gas, and performing hydrogenation at a temperature of not more than 90℃ and a pressure of not more than 12 barg to obtain 2-aminopropan-1-ol.

Classes IPC  ?

• C07C 213/02 - Préparation de composés contenant des groupes amino et hydroxy, amino et hydroxy éthérifiés ou amino et hydroxy estérifiés liés au même squelette carboné par des réactions impliquant la formation de groupes amino à partir de composés contenant des groupes hydroxy ou des groupes hydroxy éthérifiés ou estérifiés
• C07C 215/08 - Composés contenant des groupes amino et hydroxy liés au même squelette carboné ayant des groupes hydroxy et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant saturé et acyclique avec un seul groupe hydroxy et un seul groupe amino liés au squelette carboné

Abrégé

The invention relates to a method of curing an epoxide prepared from phenolic compounds such that the cured epoxy resin has a glass transition temperature (Tg) of at least 245°C The method comprises: (a) mixing the epoxide at a temperature of 25 to100°C with at least one hardener, a naturally occurring aliphatic polyamine or at least one analogue thereof or combination thereof, and at least one antioxidant; (b) heating the mixture of step(a) at 100 to 130 °C for 1 to 3 hrs; (c) heating the partially cured mixture of step(b) at 130 to 160 °C for 1 to 3 hrs; and (d) heating the substantially cured mixture of step(c) at 160 to 200 °C for 3 to 5 hrs; wherein steps (b) to (d) were performed in an atmosphere of nitrogen; and wherein the epoxide is trans-resveratrol trisepoxide of Formula (I), a tetraepoxide of Formula (II) or a diepoxide of Formula (III).

Classes IPC  ?

• C08G 59/06 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols
• C08G 59/24 - Composés diépoxydés carbocycliques
• C08G 59/32 - Composés époxydés contenant au moins trois groupes époxyde
• C08G 59/50 - Amines
• C09J 163/00 - Adhésifs à base de résines époxyAdhésifs à base de dérivés des résines époxy

Abrégé

The present invention relates to a process and system for recycling epoxy thermosets, containing cleavable bonds, said process using an acid solution to dissolve the epoxy thermoset and devolatizing the acid solution from a thermoplastic acidic mixture to produce the thermoplastic component. The process allows recovery of a recyclable thermoplastic component and optionally a recyclable reinforcement matrix component. The process comprising dissolving the epoxy thermoset in an acid solution under heated conditions resulting in a thermoplastic mixture; optionally filtering the thermoplastic mixture to separate out a reinforcement matrix component from a thermoplastic solution; and devolatizing the thermoplastic solution to obtain a recyclable thermoplastic component.

Classes IPC  ?

• C08J 11/26 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance organique par traitement avec des composés organiques contenant de l'oxygène contenant des groupes acide carboxylique, leurs anhydrides ou esters
• C08J 11/16 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance inorganique

Abrégé

A process for preparing 2,2-dimethoxypropane is disclosed Said process comprises the steps of reacting acetone with methanol in a molar ratio ranging between 1:2 to 1:6 in the presence of a catalyst at a reaction temperature in the range of -50°C to -80°C, followed by allowing acetone and methanol to react at the reaction temperature in the range of -50°C to -80°C for a time period in the range of about 12 hours to 7 days to obtain a reaction mixture comprising crystals of 2,2-dimethoxypropane; quenching the reaction mixture comprising crystals of 2,2-dimethoxypropane with a base to obtain a slurry including crystals of 2,2- dimethoxypropane. The slurry including crystals of 2,2-dimethoxypropane is treated to obtain 2,2- dimethoxypropane in a liquid form.

Classes IPC  ?

• C07C 41/58 - SéparationPurificationStabilisationEmploi d'additifs
• C07C 41/56 - Préparation de composés comportant des groupes par des réactions donnant des groupes par condensation d'aldéhydes, de paraformaldéhyde ou de cétones
• C07C 43/303 - Composés comportant des groupes les atomes de carbone de l'acétal étant liés à des atomes de carbone acycliques

Abrégé

The present invention relates to a process and system for recycling epoxy thermosets, containing cleavable bonds, said process using an acid solution to dissolve the epoxy thermoset and devolatizing the acid solution from a thermoplastic acidic mixture to produce a thermoplastic component. The process allows recovery of a recyclable thermoplastic component and optionally a recyclable reinforcement matrix component. The process comprising dissolving the epoxy thermoset in an acid solution under heated conditions resulting in a thermoplastic mixture; optionally filtering the thermoplastic mixture to separate out a reinforcement matrix component from a thermoplastic solution; and devolatizing the thermoplastic solution to obtain a recyclable thermoplastic component.

Classes IPC  ?

• C08J 11/26 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance organique par traitement avec des composés organiques contenant de l'oxygène contenant des groupes acide carboxylique, leurs anhydrides ou esters
• C08J 11/16 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance inorganique
• C08J 11/10 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation
• C08J 5/04 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy

Abrégé

The present disclosure relates to a modified epoxy resin having the formula (I): N is 1-20.

Classes IPC  ?

• C08G 59/24 - Composés diépoxydés carbocycliques
• C08G 59/06 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols
• C08G 59/08 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols à partir de condensats de phénolaldéhyde
• C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
• C08G 59/50 - Amines
• C08G 59/62 - Alcools ou phénols

Produits et services

Unprocessed epoxy resin and reactive diluent in the nature of chemical preparations for use in industry Semi-processed resins, namely, epoxy resin

Produits et services

Unprocessed epoxy resin and reactive diluent in the nature of chemical preparation for use in industry Semi-processed resins, namely, epoxy resin

Produits et services

(1) Epoxy Resin & Reactive Diluent

Produits et services

(1) Epoxy Resin & Reactive Diluent

Produits et services

Epoxy Resin and Reactive Diluent.

Produits et services

Epoxy Resin and Reactive Diluent.

Abrégé

A slow reacting epoxy resin system is disclosed. The slow reacting epoxy resin system comprises a high purity epoxy resin component selected from the group comprising of a high purity Bisphenol A(BPA), a high purity Bisphenol F (BPF), and a combination thereof, and an amine curing agent. The initial viscosity after mixing the high purity epoxy resin component and the amine curing agent is less than 350 mPa·s at 25° C.

Classes IPC  ?

• C08G 59/24 - Composés diépoxydés carbocycliques
• C08G 59/50 - Amines
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• C08G 59/02 - Polycondensats contenant plusieurs groupes époxyde par molécule

Abrégé

A glycidyl amine epoxy resin(s) and a process for production of glycidyl amine epoxy resin(s) are disclosed. The glycidyl amine epoxy resin(s) is/are free from Bisphenol A (BPA) and Bisphenol F (BPF) and are based on AMES negative amine precursors.

Classes IPC  ?

• C08G 59/10 - Polycondensats contenant plusieurs groupes époxyde par molécule de polyamines avec l'épihalohydrine ou ses précurseurs
• C08G 59/06 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols
• C08G 59/32 - Composés époxydés contenant au moins trois groupes époxyde
• C08G 65/26 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir d'éthers cycliques par ouverture d'un hétérocycle à partir d'éthers cycliques et d'autres composés
• C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
• C08G 59/28 - Composés diépoxydés contenant des atomes d'azote acycliques
• C08G 59/50 - Amines
• C08G 59/62 - Alcools ou phénols

Abrégé

A glycidyl amine epoxy resin (s) and a process for production of glycidyl amine epoxy resin(s) is disclosed. The glycidyl amine epoxy resin(s) is/are free from Bisphenol A (BPA) and Bisphenol F (BPF) and are based on AMES negative amine precursors.

Classes IPC  ?

• C08G 59/50 - Amines

Abrégé

A slow reacting epoxy resin system is disclosed. The slow reacting epoxy resin system comprises a high purity epoxy resin component selected from the group comprising of a high purity Bisphenol A(BPA), a high purity Bisphenol F (BPF), and a combination thereof, and an amine curing agent. The initial viscosity after mixing the high purity epoxy resin component and the amine curing agent is less than 350 mPa.s at 25 °C.

Classes IPC  ?

• C08G 59/02 - Polycondensats contenant plusieurs groupes époxyde par molécule
• C08G 59/24 - Composés diépoxydés carbocycliques
• C08G 59/50 - Amines

Abrégé

The invention relates to an improved process for making monomeric triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohydrin with an aminophenol, such as compounds of formula II and IV, which provides an intermediate halohydrin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.

Classes IPC  ?

• C07D 301/24 - Synthèse du cycle de l'oxirane par élimination de Hal-Y de composés contenant le radical Hal—C—C—OY
• C07D 303/36 - Composés contenant des cycles oxirane avec des radicaux hydrocarbonés substitués par des atomes d'azote

Abrégé

The invention relates to an improved manufacturing process for the preparation of high 2,4′-dihydroxydiphenylmethane, by a process involving reaction of phenol and formaldehyde, in the presence of an inorganic polyprotic acid. According to this process, the reaction conditions are selected to favour a high yield of dihydroxydiphenylmethane, with a relatively high concentration of the 2,4′-isomer, by using a relatively low molar excess of phenol than conventional methods.

Classes IPC  ?

• C07C 37/20 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par des réactions augmentant le nombre d'atomes de carbone au moyen d'aldéhydes ou de cétones

Abrégé

A self-healing hydrophobic epoxy resin composition is provided. The self-healing epoxy resin composition comprises an epoxy resin component and a hardener component, the hardener component comprises at least 0.1 weight % of a modified epoxy resin hardener. The modified epoxy resin hardener is a reaction product of an amino modified oligomericsiloxane and a carboxylic acid anhydride. A process for preparing the modified epoxy resin hardener is also disclosed.

Classes IPC  ?

• C08G 59/40 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés
• C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
• C08K 3/36 - Silice
• C08G 77/388 - Polysiloxanes modifiés par post-traitement chimique contenant des atomes autres que le carbone, l'hydrogène, l'oxygène ou le silicium contenant de l'azote

Abrégé

The invention relates to an improved process for making monomelic triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohyrdrin with an aminophenol, such as compounds of fonnula III and IV, which provides an intermediate halohydiin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.

Classes IPC  ?

• C07D 301/24 - Synthèse du cycle de l'oxirane par élimination de Hal-Y de composés contenant le radical Hal—C—C—OY
• C07D 303/36 - Composés contenant des cycles oxirane avec des radicaux hydrocarbonés substitués par des atomes d'azote

Abrégé

A self-healing hydrophobic epoxy resin composition is provided. The self-healing epoxy resin composition comprises an epoxy resin component and a hardener component, the hardener component comprises at least 0. 1 weight % of a modified epoxy resin hardener. The modified epoxy resin hardener is a reaction product of an amino modified oligomericsiloxane and a carboxylic acid anhydride. A process for preparing the modified epoxy resin hardener is also disclosed.

Classes IPC  ?

• B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition

Abrégé

The invention relates to an improved manufacturing process for the preparation of high 2, 4 '-dihydroxydiphenylmethane, by a process involving reaction of phenol and formaldehyde, in the presence of an inorganic polyprotic acid. According to this process, the reaction conditions are selected to favour a high yield of dihydroxydiphenylmethane, with a relatively high concentration of the 2,4'-isomer, by using a relatively low molar excess of phenol than conventional methods.

Classes IPC  ?

• C07C 37/20 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par des réactions augmentant le nombre d'atomes de carbone au moyen d'aldéhydes ou de cétones

Produits et services

Adhesive chemicals for improving the performance and duration of chemical products for use in industry; Adhesive materials for the building industry and tiles; Adhesive substances for use in industry; Adhesives and glues for industrial and commercial use; Adhesives and glues for industrial purposes; Adhesives for applying floor tiles; Adhesives for applying wall coverings; Adhesives for floor, ceiling and wall tiles; Adhesives for industrial purposes; Adhesives for industrial use; Adhesives for laying ceramic tiles; Adhesives for use in industry; Adhesives for wall tiles; Anhydrides; Anti-slip chemical preparations that are applied to horizontal surfaces to prevent slip and fall accidents; Chemical coatings used in the manufacture of printed circuit boards; Chemical preparations for use in the manufacture of paints; Chemical preparations to be applied to textiles, plastics and coatings for absorbing ultraviolet light; Chemical sealants used for buildings which penetrate through walls, floors and ceilings for fire prevention; Chemical thickeners for use in the manufacture of adhesives; Chemical vehicles used in the manufacture of paints; Chemicals and unprocessed plastics, namely, polymers for electronic materials; Chemicals for industrial purposes; Chemicals for use in connection with solar cells; Chemicals, namely, stability additives, cold flow improvers, dehazers, acid reduction aids, corrosion inhibitors, and combustion improvers used in biodiesel, biodiesel blends, and biorefined fuels; Coatings used in the manufacture of printed circuit boards; Construction industry adhesives; Industrial adhesives; Industrial adhesives for use in coating and sealing; Polymer resins used in the manufacture of resin or fiber composites; Polymers and polymeric additives for use in the manufacture of industrial products, consumer and household products, sealants, and automotive fluids; Polymers and polymeric additives for use in the manufacture of pharmaceutical preparations, medical devices, plastics, cosmetics, personal care products, coatings, adhesives, and lubricants; Polymers, biopolymers, polymeric additives and biopolymeric additives for use in the manufacture of industrial products, consumer and household products, sealants or packaging; Silanes; Synthetic resin adhesives for laminating purposes; Synthetic resins; Synthetic resins that are used to repair and fill holes and cracks, adhere to surrounding materials and seal surfaces for use in harsh environments; Thermoplastic and thermosetting adhesives and cements; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes.

Produits et services

Adhesive chemicals for improving the performance and duration of chemical products for use in industry; Adhesive materials for the building industry and tiles; Adhesive substances for use in industry; Adhesives and glues for industrial and commercial use; Adhesives and glues for industrial purposes; Adhesives for applying floor tiles; Adhesives for applying wall coverings; Adhesives for floor, ceiling and wall tiles; Adhesives for industrial purposes; Adhesives for industrial use; Adhesives for laying ceramic tiles; Adhesives for use in industry; Adhesives for wall tiles; Anhydrides; Anti-slip chemical preparations that are applied to horizontal surfaces to prevent slip and fall accidents; Chemical coatings used in the manufacture of printed circuit boards; Chemical preparations for use in the manufacture of paints; Chemical preparations to be applied to textiles, plastics and coatings for absorbing ultraviolet light; Chemical sealants used for buildings which penetrate through walls, floors and ceilings for fire prevention; Chemical thickeners for use in the manufacture of adhesives; Chemical vehicles used in the manufacture of paints; Chemicals and unprocessed plastics, namely, polymers for electronic materials; Chemicals for industrial purposes; Chemicals for use in connection with solar cells; Chemicals, namely, stability additives, cold flow improvers, dehazers, acid reduction aids, corrosion inhibitors, and combustion improvers used in biodiesel, biodiesel blends, and biorefined fuels; Coatings used in the manufacture of printed circuit boards; Construction industry adhesives; Industrial adhesives; Industrial adhesives for use in coating and sealing; Polymer resins used in the manufacture of resin or fiber composites; Polymers and polymeric additives for use in the manufacture of industrial products, consumer and household products, sealants, and automotive fluids; Polymers and polymeric additives for use in the manufacture of pharmaceutical preparations, medical devices, plastics, cosmetics, personal care products, coatings, adhesives, and lubricants; Polymers, biopolymers, polymeric additives and biopolymeric additives for use in the manufacture of industrial products, consumer and household products, sealants or packaging; Silanes; Synthetic resin adhesives for laminating purposes; Synthetic resins; Synthetic resins that are used to repair and fill holes and cracks, adhere to surrounding materials and seal surfaces for use in harsh environments; Thermoplastic and thermosetting adhesives and cements; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes.

Abrégé

A process for making epoxy resin foam blocks of varying density comprising mixing together (i) a foam resin comprising: a first epoxy resin, a foaming agent to the extent of 2% to 10% of the mass of the epoxy resin, a surfactant to the extent of 2% to 6% of the mass of the epoxy resin, a filler, a toughening agent and (ii) a curing agent comprising: a hardener and a second epoxy resin, the ratio of the foam resin to curing agent being in the range of about 100:20 to 100:25 by mass to form a reaction mixture; pouring the reaction mixture inside a mold maintained at a temperature in the range of 70° to 80° C. and allowing the mixture to cure in the mold for 60 to 100 min.; allowing the mold to cool at a temperature in the range of 15° C. to 30° C. and demolding to obtain a green block; and post-curing the green block in an air circulatory oven for 10 to 15 hrs to obtain a final hard foam block.

Classes IPC  ?

• B29C 45/76 - Mesure, commande ou régulation

Abrégé

A process for making a molded composite comprising the following steps: reacting a reaction mass containing a polyepoxide, in the proportion of about 20% to 50% with respect to the reaction mass, a diol, in the proportion of about 10% to 20% with respect to the reaction mass, a hardener, in the proportion of about 20% to 50% with respect to the reaction mass, in the presence of an accelerator in the proportion of about 0.5 to 10.0% with respect to the reaction mass either alone or in solution with compatible diluents, to obtain an epoxy resin mix having intrinsic viscosity in the range of 100 to 850 cPs, pouring the resin mix in a mold having an in-situ glass fiber scaffold at a mold temperature in the range of 45 to 50 C. and applying pressure to the resin mix in the mold to form a compressed green composition: partially curing the compressed green composition at a temperature in the range of 60 to 80 C. to obtain a partially cured composite; and further curing the partially cured composite at a temperature in the range of 80 to 90 C. to obtain a fully cured composite. The composite is used for structural applications like windmill blades, yachts, domes, ships made from a composite made in accordance with the process as mentioned herein.

Classes IPC  ?

• C08J 5/08 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes utilisant des matériaux fibreux prétraités des fibres de verre
• C08L 63/02 - Éthers polyglycidyliques des bis-phénols
• B32B 27/04 - Produits stratifiés composés essentiellement de résine synthétique comme substance d'imprégnation, de collage, ou d'enrobage

Abrégé

A process for preparing epichlorohydrin comprising the following steps: reacting allyl chloride with an inorganic peroxide compound in the presence of at least one solvent at a temperature of about 35 to 75 degree C in a fixed bed column reactor containing a catalyst to obtain a resultant containing a mixture of epichlorohydrin, unreacted allyl chloride, solvent and water; diluting the mixture with water, wherein the mass ratio of water to the mixture is about 0.2 to 0.7, to obtain a diluted mixture; cooling the diluted mixture to about 5-15 degree C to obtain a cooled diluted mixture; separating organic phase and aqueous phase from the cooled diluted mixture; separating and recovering unreacted allyl chloride and epiochlorohydrin individually from the organic phase by fractional distillation; and separating and recovering solvent and water individually from the aqueous phase by fractional distillation.

Classes IPC  ?

• C07D 301/12 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par le peroxyde d'hydrogène ou par des peroxydes ou peracides inorganiques