A method of inhibiting silica-containing scales in an industrial process comprising contacting a process slurry with a scale inhibitor, the process slurry having a solids concentration of at least 0.5 g/L, wherein the scale inhibitor comprises a compound comprising recurring units covalently bound to at least one pendant silanol group.
C02F 5/12 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
2.
THERMOPLASTIC PREPREGS, CORRESPONDING GREEN BODIES AND CARBON-CARBON COMPOSITE ARTICLES AND CARBON FIBERS
Described herein are thermoplastic prepregs comprising an organic polymer matrix and a carbon fiber substrate. The polymer matrix comprises a polyphenylene polymer, described in detail below. The thermoplastic prepregs are particularly suitable for carbon-carbon composites ("C/C composites"). In particular, due at least in part to the significantly improved char yields and conversion to laterally ordered graphite-like carbon during pyrolyzation, the polyphenylene polymers described herein provide for improved C/C composites, both structurally and based upon processing efficiency. Also described herein are methods for manufacturing the thermoplastic prepregs and green bodies and C/C composites made therefrom.
D01F 9/21 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
3.
STABILIZED POLYMER COMPOSITIONS WITH IMPROVED COLOR RESISTANCE
secterttert.-HALS); an alkoxylated alcohol; and optionally a hindered benzoate which is more resistant to discoloration due to gas fading and thermal oxidation compared to the polymer composition where the stabilizer composition does not include a tertiary HALS stabilizer and an alkoxylated alcohol. Further, a process for making a stabilized article that includes adding the stabilized polymer composition to a device or process for performing industrial molding; industrial fiber making; industrial tape; and extruded sheets, is provided.
The present disclosure relates to a process for producing carbon fibers utilizing a salt of an organic cation containing a C═N imine group, and carbon fibers produced by such process.
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
6.
FAST-CURE RESIN FORMULATIONS WITH CONSISTENT HANDLING CHARACTERISTICS
The present invention relates to rapid-curing resin formulations as well as fiber- reinforced composite materials comprising the same and their use in the manufacture of molded articles, particularly where the manufacturing process requires high throughput and where resin formulations having consistent handling characteristics (e.g., tack and flexibility) would be preferable across normal to elevated laminating environments (as defined by temperatures between 20° C. and 60° C.). The present invention further relates to a manufacturing process for preparing an article, particularly a molded article, from a fiber-reinforced composite material comprising a rapid-curing resin formulation.
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
The present disclosure relates to a cyclone-producing apparatus for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the cyclone-producing apparatus and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
First measurement results are received from a characterization system in an ore processing plant. The first measurement results characterize a sample of mineral rotation feed. A first set of mineral characteristics of the sample of mineral rotation feed are determined based on the first measurement results. Respective similarities are determined between the first set of mineral characteristics and a plurality of predetermined sets of mineral characteristics that are each associated with one or more corresponding sets of rotation treatment parameters. A first set of rotation treatment parameters is selected based on the respective similarities. The first set of rotation treatment parameters is transmitted to a rotation processing system for separation of mineral components according to the first set of rotation treatment parameters.
A polymer comprising repeating units derived from a first monomer, typically acrylonitrile, and repeating units derived from a second monomer different from the first monomer, wherein the second monomer is a compound comprising an ethylenically unsaturated organic anion and an organic cation containing a C═N imine group; a process for producing carbon fibers using the said polymer; and carbon fibers made therefrom, are described herein.
C07C 277/08 - Preparation of guanidine or its derivatives, i.e. compounds containing the group the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 220/46 - Acrylonitrile with carboxylic acids, sulfonic acids or salts thereof
D01F 6/38 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
10.
SELF-RELEASING, UV BLOCKING SURFACING MATERIALS FOR COMPOSITE PARTS
A surfacing material that is capable of ultraviolet (UV) protection and self-releasing from a mold surface. The surfacing material is a multilayer structure composed of a curable resin layer laminated to a self-releasing layer. The surfacing material is designed to be co-cured with a composite substrate, for example, a prepreg layup. After co-curing, the composite part surfaced with the surfacing material is releasable from the mold surface with ease. The self-releasing layer functions as a UV blocking layer until the cured composite substrate is ready for painting. When the self-releasing layer removed, a paint-ready surface is revealed. Such surface does not require any surface preparation prior to painting.
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29K 63/00 - Use of epoxy resins as moulding material
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
11.
HEAVY METALS REMOVAL FROM PHOSPHORIC ACID CONTAINING STREAMS
A process for removing heavy metal ions from a phosphoric acid containing stream, may include adding a diluted solution of a dialkyldithiophosphate compound having an alkyl chain length ranging from 8 to 12 carbon atoms to the phosphoric acid containing stream to form heavy metal ion complexes; and separating the heavy metal ion complexes from the phosphoric acid containing stream.
The present disclosure relates to a spinneret housing for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the spinneret housing and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.
The present disclosure relates to a composite film made of at least LCP and a fiber fabric, for example presenting a thickness of less than 0.10 mm, as well as articles comprising such composite films, exhibiting low dielectric constant and dissipation factors and being suitable for mobile electronic device components, for example flexible printed circuit board (FPC).
Bonding films comprising PEEK-PEoEK copolymers are compatible with polyaryletherketone chemistry thereby providing joined polyaryletherketone polymer parts with high fracture toughness and overall good mechanical properties.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
C09J 5/06 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
C09J 171/00 - Adhesives based on polyethers obtained by reactions forming an ether link in the main chainAdhesives based on derivatives of such polymers
16.
A PROCESS FOR PRODUCING POLYACRYLONITRILE-BASED FIBER HAVING CONTROLLED MORPHOLOGY
The present disclosure relates generally to a process for producing polymer fibers, typically polyacrylonitrile-based fibers, the morphology of which is controlled by the use of a polymer additive to form a polymer blend with polyacrylonitrile, which is then subjected to certain coagulation and washing conditions. The present disclosure also relates to carbon fibers produced by processing the polymer fibers made.
D01F 6/18 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
D01F 11/06 - Chemical after-treatment of man-made filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
17.
COMPOSITIONS AND METHODS FOR PROTECTING ORGANIC POLYMERIC MATERIALS FROM DISCOLORATION DUE TO EXPOSURE TO UV-C LIGHT
Polymer compositions for making a stabilized polymeric articles that are resistant to discoloration upon exposure to UV-C light having: (i) an organic polymeric material; and (ii) a hindered phenol, organic phosphite, or a combination thereof, with the provisos that: (a) the OH group on the aromatic ring of the hindered phenol is flanked by two tertiary hydrocarbyl groups, and (b) the organic phosphite does not have any-OAr group linked directly to the P atom of the phosphite, wherein Ar represents an unsubstituted or substituted aryl group, are provided herein. Reduced discoloration is associated with the use of specific hindered phenols and the organic phosphites compared to other hindered phenols and organic phosphites, even in the absence of other polymer additives including UV absorbers, hindered amine light stabilizers (HALS), metal oxides and/or barium salts. Methods of reducing discoloration of an organic polymeric material upon exposure to UV-C light are also provided, wherein such methods include the step of adding to the organic polymeric material a stabilizing amount of hindered phenol, organic phosphite, or a combination thereof.
The present disclosure relates to a composite film made of at least one fluoropolymer and a fiber fabric, presenting a thickness of less than 0.10 mm, as well as articles comprising such composite films, exhibiting low dielectric constant and dissipation factors and being suitable for mobile electronic device components, for example flexible printed circuit board (FPC).
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
19.
A PROCESS FOR MANUFACTURING COMPOSITE ARTICLES, AND COMPOSITE ARTICLES MADE THEREBY
The present disclosure relates to a process for manufacturing composite articles. and composite articles made thereby. The processes described herein make use of curable compositions containing NCF fabrics having certain types of stitching yarns. The curable compositions and composite articles made according to the present disclosure are particularly suited to the production of composite parts for use in many applications, such as in aviation, automotive, and marine applications.
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
B29K 63/00 - Use of epoxy resins as moulding material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
20.
STABILIZER COMPOSITIONS FOR HIGH CLARITY RANDOM POLYPROPYLENE COPOLYMER AND METHODS THEREOF
A stabilization composition for making a polymeric front sheet of a photovoltaic cell comprising i) a random polypropylene copolymer resin, ii) a stabilizing amount of an orthohydroxyphenyl triazine ultraviolet light absorber, iii) a stabilizing amount of at least one hindered amine light stabilizer and iv) a stabilizing amount of at least one antioxidant selected from a hindered phenol, a phosphite, a phosphonite or a mixture thereof.
The present invention relates to poly(ether ketone ketone) (PEKK) polymers, a method for the manufacture thereof, to articles and composites made therefrom, to methods of making the composites, and composite articles including the PEKK composites. It was surprisingly discovered that by synthesizing the PEKK polymers from low-metal monomers and selectively controlling the relative amounts of reactants during the synthesis, PEKK polymers having unexpectedly improved melt stability can be obtained. The PEKK composites including the PEKK polymers are especially well-suited for fabrication of thick composite parts where melt stability of the polymer matrix is important.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 65/46 - Post-polymerisation treatment, e.g. recovery, purification, drying
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
22.
PERMEABLE MATERIALS CAPABLE OF LIGHTNING STRIKE PROTECTION AND USE THEREOF IN RESIN INFUSION PROCESSING
A permeable LSP material that can be incorporated into a resin infusion process such as RTM and VaRTM. This permeable LSP material may be in the form of an elongated or continuous tape that can be used in an automated placement process such as ATL and AFP. In one embodiment, the permeable LSP material includes at least the following components: (a) a nonwoven veil of randomly arranged fibers; (b) a porous electrically conductive layer having openings through its thickness; and (c) a resin material distributed, in a non-continuous manner, throughout the nonwoven veil 11 and between the nonwoven veil and the porous conductive layer. The permeable LSP material can be brought into contact with a dry preform, followed by resin infusion and curing to form a hardened composite part having the LSP material integrated therein.
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
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
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
Compositions and processes for removing/recovering heavy metal ions in s phosphoric acid containing streams by adding reagents having at least one dialkyldithiophosphate compound, with the alkyl chain length of C8 to C18, at least one dialkyldithiophosphinate compound, and at least one surfactant to a phosphoric acid solution or slurry to form heavy metal ion complexes, and separating the heavy metal ion complexes from the solution or slurry are provided herein.
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
24.
THERMOPLASTIC POLYAMIDE PARTICLES FOR TOUGHENING COMPOSITE MATERIALS
The present disclosure relates to thermoplastic copolyamide particles for toughening and/or reducing microcracking in composite materials, wherein the particles have a given particle distribution.
The present invention relates to assembly comprising a first component and a second component, each component comprising a polymer, as well as a film positioned between and bonded to the first component and the second component. The film is such that it comprises at least one poly(ether ketone ketone) (PEKK) polymer and at least one nucleating agent. The assembly has an improved fracture toughness and overall good mechanical properties.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
Provided is a method of scale inhibition of titanium-containing scales in an industrial process. The method comprises contacting a reaction medium in the process with a scale inhibitor comprising a polymer comprising pendant phosphonate functional groups. Polymers comprising may be either homopolymers, copolymers, or a blend of polymers comprising recurring units comprising the pendant phosphonate functional groups.
C01F 7/0653 - Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
C01F 7/47 - Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
C02F 5/14 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
The present invention relates to assembly comprising a first component and a second component, each component comprising a polymer, as well as a film positioned between and bonded to the first component and the second component. The film is such that it comprises a blend of at least two poly(ether ketone ketone) (PEKK) polymers and optionally at least one nucleating agent. The assembly has an improved fracture toughness and overall good mechanical properties.
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/26 - Layered products essentially comprising synthetic resin characterised by the use of special additives using curing agents
B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
B32B 37/20 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
28.
SYNERGISTIC STABILIZER COMPOSITIONS AND METHODS FOR USING SAME FOR PROTECTING ORGANIC MATERIALS FROM UV LIGHT AND THERMAL DEGRADATION
Synergistic stabilizer compositions having a stabilizing amount of a co-synergist; optionally a stabilizing amount of a co-active agent; a stabilizing amount of an ultraviolet light absorber selected from an ortho-hydroxyphenyl triazines, ortho-hydroxy benzophenones, oxanilides, cyanoacrylates, benzoxazinones, optionally ortho-hydroxyphenyl benzotriazoles, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer, are provided herein. The total weight of co-synergist (IV) and co-active agent (when present) is from 1 wt.% to 99 wt. %, based on the total weight of the stabilizer composition; and the weight ratio of co- synergist to co-active agent (when present) is 1:99 to 99:1. Also disclosed are masterbatch concentrates, stabilized polymer compositions, and stabilized articles of manufacture, all containing the stabilizer composition.
The present disclosure relates generally to a process for producing polymer fibers, typically polyacrylonitrile-based fibers, the properties of which are controlled by certain parameters of the process, such as the amount of jet stretch, the amount of wet stretch, and the amount of hot stretch employed. The present disclosure also relates to a process for producing carbon fiber from such polymer fibers.
D01D 10/00 - Physical treatment of man-made filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
D01F 6/54 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
Processes for removing heavy metal ions in phosphoric acid mixtures by adding an effective amount of reagents comprising a plurality of sulfur groups to the phosphoric acid mixture to form heavy metal complexes, and separating the heavy metal complexes from the solution are provided herein.
C01B 25/22 - Preparation by reacting phosphate containing material with an acid, e.g. wet process
B01J 20/00 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof
Spoolable tubing suitable for use in the oil industry, and more particularly spoolable composite tubing with the ability to withstand high stress and high cracking resistance.
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
A thermoset resin composition and composite materials containing reinforcement fibers impregnated with the thermoset resin composition. The thermoset resin composition contains: (a) a combination of multifunctional epoxy resins; (b) 4,4′-meth-ylenebis(2,6-xylidine) as a curative for the epoxy resins; and (c) a thermoplastic component, wherein the thermoset resin composition is void of any catalyst or accelerator that is reactive with the epoxy resins.
A high-temperature surfacing film formed from a curable resin composition containing: (i) at least one bismaleimide (BMI) monomer; (ii) at least one co-monomer that is reactive with the BMI monomer; (iii) a pre-react adduct that enhances film-forming properties and improves toughness; (iv) inorganic microspheres; and (v) a flow control agent in the form of particulate inorganic fillers that are not microspheres.
C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCompositions of derivatives of such polymers
C09D 165/00 - Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCoating compositions based on derivatives of such polymers
Multilayer composites laminates comprising continuous fibers and a polymer matrix including a thermoplastic polymer and an impact modifier are disclosed. The invention further relates to articles incorporating the thermoplastic composites laminate.
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
A method for forming a composite sandwich structure by compression molding is disclosed. The method includes: placing a stack of two composite skins (13a, 13b) separated by a non-adherent layer (13c) in a compression molding tool (10); compression molding the stack of composite skins and non-adherent layer while applying heat to the tool, wherein compression molding of the stack is carried out until each composite skin conforms to and adhere to the molding surface adjacent to it but the thermoset resin in each composite skin is not fully cure; opening the compression molding tool, wherein each composite skin remains adhered to the adjacent molding surface; removing the non-adherent layer from the compression molding tool; placing a core layer (14) in the compression molding tool; and compression molding until the core layer is bonded to the composite skins, thereby forming a shaped sandwich structure (15).
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29D 99/00 - Subject matter not provided for in other groups of this subclass
01 - Chemical and biological materials for industrial, scientific and agricultural use
40 - Treatment of materials; recycling, air and water treatment,
37 - Construction and mining; installation and repair services
Goods & Services
Chemical products for use in industry, the mining industry for the purpose of the floatation of copper, lead and zinc ores; chemical products for use in industry in the extraction and treatment of metals and metalloids; chemical agents being floatation reagents for use in the concentration of minerals; chemical agents, namely, reagents, promoters, collectors, frothers, filter and dewatering aids, processing aids flocculants for use in mineral, alumina and coal processing; chemical agents, namely, mining chemicals being reagents used as a promoter or floatation reagent in copper, lead and zinc mining Chemical treatment of materials in the mining industry; processing of chemicals in the mining industry Mining extraction of chemicals and metals; Mining extraction services
38.
FIBER REINFORCED THERMOPLASTIC MATRIX COMPOSITE MATERIAL
Fiber reinforced composite material comprising a thermoplastic matrix comprising blends of poly(ether ketone ketone) (PEKK) polymers, their method of manufacture and articles obtained therefrom.
C08L 61/02 - Condensation polymers of aldehydes or ketones only
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
Disclosed herein is a solvent-based bonding primer composition containing one or more organic solvents, one or more epoxy resins, one or more curing agents, a silane compound, and a low amount of core-shell rubber particles in nanometer size, submicron or micron size. Also disclosed is a method of applying the solvent-based bonding primer composition onto a metallic surface of a first substrate prior to bonding the metallic surface to a second substrate via a curable adhesive.
C09J 163/00 - Adhesives based on epoxy resinsAdhesives based on derivatives of epoxy resins
C09J 5/02 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
The present disclosure relates to aqueous compositions containing water and the ammonium salt of a polyamide-amic acid. Processes for producing such aqueous compositions and uses thereof are described.
A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):
A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):
A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):
with excess aminobenzene according to structure (II):
A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):
with excess aminobenzene according to structure (II):
A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):
with excess aminobenzene according to structure (II):
wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemical products for use in industry, namely, chemicals for use in industry, chemical preparations for general industrial manufacturing and chemicals and chemical products for use in the production of composite materials in the aeronautics, space, marine, transport, recreation, leisure, motorsport, automotive, energy and infrastructure industries; chemical fillers being chemical additives for use in the manufacture of fabrics and a wide variety of goods; adhesives for use in manufacturing and for industrial use; adhesive materials for the building industry; chemicals for use in the manufacture of adhesives and adhesive materials Plastics material in the form of bars, blocks, pellets, rods, sheets and tubes for use in manufacturing, composite plastic materials in the form of profiles, boards, sheets, blocks, rods, powders and pellets for use in manufacturing, processed synthetic resinous materials in liquid and semi-liquid form used for the production of molded articles and processed synthetic resinous materials in the form of adhesives and bonded adhesive joints for use in manufacturing of load-bearing composites and metallic structures; fibre reinforced synthetic resinous materials in the form of pre-formed articles or parts of articles used for the manufacture of molded articles, and fiber-reinforced processed synthetic resinous materials in the form of load-bearing non-metallic structures; semi-processed plastic materials in the form of bars, blocks, rods and sheets for general industrial use; resinous composite products in the form of profiles, boards, sheets, blocks, rods, powder, and pellets for use in manufacturing; semi-processed materials and compositions, namely, plastics, resins, acrylic resins, cellulose acetate, natural resins, synthetic resins; semi-processed plastics; semi-processed resins; semi-processed synthetic resin materials; semi-processed composites in the nature of plastics, resins, acrylic resins, natural resins, synthetic resins, cellulose acetate, artificial resins; semi-processed fibre-reinforced plastic materials for use in the production of pre-formed articles and parts of articles for use in manufacturing, semi-processed fiber-reinforced plastic materials for use in the manufacture of components for the aeronautics, space, marine, transport, recreation leisure, automotive, motorsport, energy and infrastructure industries, and semi-processed fibre-reinforced materials, namely, semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; semi-processed fillers, namely expansion joint fillers; semi-processed adhesives, namely, adhesive sealants for general use; semi-processed fibres for reinforcement, namely, fiber-reinforced plastic materials for use in the production of pre-formed articles and parts of articles for use in manufacturing; semi-processed pre-impregnated fibre resinous material for use in moulding; adhesive tapes for industrial use, bands for industrial use, sealants, polymer film for use in commercial or industrial manufacturing, plastic film for use in commercial or industrial manufacturing and caulking compounds
43.
POLYMER COMPOSITIONS HAVING DENSIFICATION ACCELERATORS AND ROTATIONAL MOLDING PROCESSES FOR MAKING HOLLOW ARTICLES THEREFROM
A sulfur reaction product formed by reacting elemental sulfur with an amine or epoxy compound containing reactive functionality. Such reaction product can be incorporated into a thermosettable resin composition as a modifier. When the thermosettable composition containing such sulfur reaction product is cured, the resulting crosslinked thermoset displays improved stress relaxation characteristics in line with vitrimer like behaviors.
Rotational molding processes for producing hollow articles include the steps of: a) filling a mold with a polymer composition comprising: i) an organic polymer; and ii) a rotational molding densification accelerator (RMDA) selected from the group consisting of alkoxylated fatty alcohols, alkoxylated fatty esters, alkoxylated fatty amines, alkoxylated fatty amides, and combinations thereof; b) rotating the mold around at least one axis while heating the mold in an oven, thereby fusing the composition and spreading it to the walls of the mold; c) cooling the mold; and d) opening the mold; and e) removing the hollow article from the mold. The rotational molding processes using such polymer composition results in faster densification, which allows for reduction in overall cycle times for making the hollow articles.
A curable composition containing more than 80% by weight of a blend of benzoxazines, wherein the blend includes (A) one or more multifunctional benzoxazines and (B) a liquid, non-halogenated monofunctional benzoxazine. This composition has been found to be stable at high temperatures, e.g. 180° C.-250° C., and suitable for making composite materials using conventional techniques such as prepregging and liquid resin infusion.
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08L 61/34 - Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups , , and
C08G 14/06 - Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
C07D 265/16 - 1,3-OxazinesHydrogenated 1,3-oxazines condensed with carbocyclic rings or ring systems condensed with one six-membered ring with only hydrogen or carbon atoms directly attached in positions 2 and 4
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor
49.
AN APPARATUS FOR IMPROVED COAGULATION INJECTION DURING THE MANUFACTURE OF POLYMER FIBERS, AND METHOD OF USE THEREOF
The present disclosure relates to a cyclone-producing apparatus for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the cyclone-producing apparatus and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.
D01F 9/00 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
50.
A SPINNERET HOUSING FOR USE IN THE MANUFACTURE OF POLYMER FIBERS, AND METHOD OF USE THEREOF
OF THE DISCLOSUREThe present disclosure relates to a spinneret housing for use in the production of polymer fibers, such as large tow polymer fibers, typically used in the manufacture of carbon fiber. The present disclosure also relates to a system comprising the spinneret housing and a process for producing polymer fibers using such a system. The polymer fibers produced are useful for the manufacture of carbon fiber, which finds application as structural components in composite materials relevant to many areas, such as the aerospace, marine, and automotive industries, among others.
D01F 9/00 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
51.
POLYESTER-FREE AQUEOUS COMPOSITIONS AND THEIR USE FOR SIZING REINFORCEMENT FIBERS USED IN COMPOSITES
The present disclosure relates to polyester-free aqueous compositions, comprising: water; and a compound of formula (I) wherein: - R1and R31-8 1-81-8 hydrocarbylene group or direct bond, - R21-81-8 hydrocarbylene, - X1and X222, NH, or NR4, wherein R41-101-10 hydrocarbyl, - m represents an integer from 1 to 5, - n represents an integer from 1 to 70, such compositions being suitable for use in coating applications, such as sizing compositions for reinforcement fibers used in composite manufacturing.
A surfacing material that can provide improved UV resistance while providing good surface properties. The surfacing material includes a resin layer formed from a curable resin composition containing: (A) one or more cycloaliphatic epoxy resin(s), each having two or more epoxy groups per molecule; (B) an epoxy-amine adduct having two or more epoxy groups per molecule and obtained by a reaction of (i) an epoxy compound having two or more alicyclic epoxy groups per molecule with (ii) an amine compound having two or more amino groups per molecule; (C) a curing agent and/or a catalyst; (D) ceramic microspheres; and (E) a flow control agent in the form of inorganic particles, which are not ceramic microspheres.
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
54.
COMPOSITE FILMS FOR MOBILE ELECTRONIC DEVICE COMPONENTS
The present disclosure relates to a composite film made of at least LCP and a fiber fabric, for example presenting a thickness of less than 0.10 mm, as well as articles comprising such composite films, exhibiting low dielectric constant and dissipation factors and being suitable for mobile electronic device components, for example flexible printed circuit board (FPC).
Methods are provided for improved recovery of organic salts, such as ionic liquids or organic salts comprising quaternary organic cations, in an industrial alumina production process, such as the Bayer process. These methods include (i) using an organic salt for the removal of impurities in an industrial process for the production of alumina; (ii) subjecting the spent organic salt to a recycling operation that generates at least one exit stream having a measureable amount of the organic salt {e.g., by entrainment or by solubility of the organic salt in the exit stream); (iii) collecting and treating the exit stream (s) with an inorganic salt, in an amount effective to induce phase separation; and (iv) recovering the organic phase containing the recovered organic salt. These methods and compositions allow alumina refinery plants to use organic salts for removal of industrial process streams in an economical manner, due to the efficient recovery of the organic salt.
Coating compositions having a polymeric binder and a stabilizer composition including at least one of a UV absorber, a hindered amine light stabilizer (HALS), or an inorganic UV blocker are provided herein, wherein said coating compositions are more resistant to discoloration when exposed to UV-C (190-280 nm) light compared to the coating compositions in the absence of the stabilizer composition. Thus, a method of stabilizing a coating composition against the deleterious effects of UV-C (190-280 nm) light includes adding to the coating composition an effective amount of such a stabilizer composition, wherein the coating composition is made more resistant to discoloration when exposed to UV-C (190-280 nm) light compared to the coating composition in the absence of the stabilizer composition. Coated articles can be made from the coating composition, and methods of making stabilized coating films include adding the stabilizer composition to the coating composition.
Disclosed herein are devices and methods for manufacturing uncured, near-net shape plies. Such devices include: a plurality of spools, each dispensing a dry tow; optionally, a plurality of spreaders to spread the dry tows; optionally, a means to combine the dry tows into a plurality of tapes or bundles; a plurality of feeders, each carrying a tow, tape or bundle, and adapted to maintain the tows, tapes or bundles in a parallel arrangement; a cutting apparatus adapted to independently cut each individual tow, tape or bundle to a pre-determined length; optionally, a conveyor adapted to transport the cut tows, tapes or bundles away from the cutting apparatus; an in-line resin infuser adapted to impregnate the dry tows, tapes or bundles with resin material; and a receiver for the cut tows, tapes or bundles, wherein the cut tows, tapes or bundles are impregnated and configured in the form of a near-net shape ply.
Coating compositions having a polymeric binder and a stabilizer composition including at least one of a UV absorber, a hindered amine light stabilizer (HALS), or an inorganic UV blocker are provided herein, wherein said coating compositions are more resistant to discoloration when exposed to UV-C (190-280 nm) light compared to the coating compositions in the absence of the stabilizer composition. Thus, a method of stabilizing a coating composition against the deleterious effects of UV-C (190-280 nm) light includes adding to the coating composition an effective amount of such a stabilizer composition, wherein the coating composition is made more resistant to discoloration when exposed to UV-C (190-280 nm) light compared to the coating composition in the absence of the stabilizer composition. Coated articles can be made from the coating composition, and methods of making stabilized coating films include adding the stabilizer composition to the coating composition.
C07D 251/14 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
59.
A PROCESS FOR MANUFACTURING COMPOSITE ARTICLES, AND COMPOSITE ARTICLES MADE THEREBY
The present disclosure relates to a process for manufacturing composite articles, and composite articles made thereby. The processes described herein make use of curable compositions containing NCF fabrics having certain types of stitching yarns. The curable compositions and composite articles made according to the present disclosure are particularly suited to the production of composite parts for use in many applications, such as in aviation, automotive, and marine applications.
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29C 65/72 - Joining of preformed partsApparatus therefor by combined operations, e.g. welding and stitching
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B32B 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing
60.
COMPOSITE FILMS FOR MOBILE ELECTRONIC DEVICE COMPONENTS
The present disclosure relates to a composite film comprising at least one liquid crystalline polyester and a fiber fabric, for example presenting a thickness of less than 0.10 mm, as well as articles comprising such composite films, exhibiting low dielectric constant and dissipation factors and being suitable for mobile electronic device components, for example flexible printed circuit board (FPC).
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
C08G 63/60 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C09K 19/52 - Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives
C03C 3/062 - Glass compositions containing silica with less than 40% silica by weight
C03C 3/085 - Glass compositions containing silica with 40% to 90% silica by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
Stabilizer compositions having a stabilizing amount of at least one co-active agent; an ultraviolet light absorber chosen from an ortho-hydroxy benzophenone, and/or an ortho-hydroxyphenyl benzotriazole; and a hindered amine light stabilizer, are provided herein, along with masterbatch concentrates containing same, and processes for using same for stabilizing polymeric organic materials to protect against light and thermal degradation due to exposure to UV irradiation.
The present disclosure relates to a composite film made of at least one fluoropolymerand a fiber fabric, presenting a thickness of less than 0.10 mm, as well as articles comprising such composite films, exhibiting low dielectric constant and dissipation factors and being suitable for mobile electronic device components, for example flexible printed circuit board (FPC).
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
A flexible, self-supporting hybrid veil that is permeable to liquid and gas. The hybrid veil includes: (a) intermingled, randomly arranged fibres in the form of a nonwoven structure; (b) particles dispersed throughout the nonwoven structure, wherein a majority of the particles are penetrating through the thickness of the nonwoven structure; and (c) a polymeric or resinous binder present throughout the veil. Such hybrid veil can be incorporated into composite laminates, prepregs, fabrics and fibrous preforms.
B29C 70/02 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements and fillers incorporated in matrix material, forming one or more layers, with or without non-reinforced or non-filled layers
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
64.
Fiber reinforced thermoplastic matrix composite material
PEoEK ranging from 95/5 to 5/95 in contact with at least a part of the surface of such fibers. The present invention also relates to methods for making such composite materials, shaped articles made from such composite materials, and methods of making such articles.
A lightweight, flame-retardant, multilayered composite structure having at least the following components: a thermoplastic foam core having two opposing surfaces; a thermoplastic adhesive film on at least one of the opposing surfaces of the foam core, one or more composite layer(s) on each adhesive film. The composite layer(s) is/are composed of reinforcement fibers embedded in a thermoplastic polymer or thermoset resin matrix. Adhesive bonding is effectuated by the interleaving thermoplastic adhesive film interposed between the thermoplastic foam core and the adjacent composite layer. The thermoplastic adhesive film is formed of a thermoplastic polymer composition having a Tg of at least 20° C. lower than the Tg of the foam core material.
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure
66.
Process for compression molding a composite article
The present invention generally relates to processes for compression molding a composite article comprising at least one prepreg and at least one transformer film.
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
B29K 81/00 - Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
The present disclosure relates generally to a process for producing polymer fibers, typically polyacrylonitrile-based fibers, the properties of which are controlled by certain parameters of the process, such as the amount of jet stretch, the amount of wet stretch, and the amount of hot stretch employed. The present disclosure also relates to a process for producing carbon fiber from such polymer fibers.
D01F 6/18 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
68.
THERMOPLASTIC POLYAMIDE PARTICLES FOR TOUGHENING COMPOSITE MATERIALS
The present disclosure relates to thermoplastic copolyamide particles for toughening and/or reducing microcracking in composite materials, wherein the particles have a given particle distribution.
B29B 9/12 - Making granules characterised by structure or composition
B29B 15/08 - Pretreatment of the material to be shaped, not covered by groups of reinforcements or fillers
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
The present invention relates to assembly comprising a first component and a second component, each component comprising a polymer, as well as a film positioned between and bonded to the first component and the second component. The film is such that it comprises at least one poly(ether ketone ketone) (PEKK) polymer and at least one nucleating agent. The assembly has an improved fracture toughness and overall good mechanical properties.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The present invention relates to assembly comprising a first component and a second component, each component comprising a polymer, as well as a film positioned between and bonded to the first component and the second component. The film is such that it comprises a blend of at least two poly(ether ketone ketone) (PEKK) polymers and optionally at least one nucleating agent. The assembly has an improved fracture toughness and overall good mechanical properties.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/26 - Layered products essentially comprising synthetic resin characterised by the use of special additives using curing agents
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
Bonding films comprising PEEK-PEoEK copolymers are compatible with polyaryletherketone chemistry thereby providing joined polyaryletherketone polymer parts with high fracture toughness and overall good mechanical properties.
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
C09J 171/00 - Adhesives based on polyethers obtained by reactions forming an ether link in the main chainAdhesives based on derivatives of such polymers
72.
RECOVERING MIXED-METAL IONS FROM AQUEOUS SOLUTIONS
Hydrometallurgical solvent extraction processes for recovering value metal ion species such as any of manganese, cobalt, nickel, and/or lithium from solutions derived from recycled electronics and/or batteries and containing mixed-metal ions by separating the value metal ions using selective stripping techniques as herein described, are provided.
A controlled shear vacuum forming method that includes forming a three-dimensional (3D) structure from a preform material on a molding tool using restraints during vacuuming to prevent wrinkling. The restraints are withdrawn during vacuuming to allowing the preform material to come into contact with the sidewalls of the molding tool in a gradual manner. Such forming method is particularly suitable for forming wing spars with bent sections and/or curved contours.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
74.
RAPID-CURING RESIN COMPOSITION AND COMPOSITE MATERIAL CONTAINING THE SAME
A thermoset resin composition and composite materials containing reinforcement fibers impregnated with the thermoset resin composition. The thermoset resin composition contains: (a) a combination of multifunctional epoxy resins; (b) 4,4'-methylenebis(2,6-xylidine) as a curative for the epoxy resins; and (c) a thermoplastic component, wherein the thermoset resin composition is void of any catalyst or accelerator that is reactive with the epoxy resins.
Hydrometallurgical solvent extraction processes for recovering value metal ion species such as any of manganese, cobalt, nickel, and/or lithium from solutions derived from recycled electronics and/or batteries and containing mixed-metal ions by separating the value metal ions using selective stripping techniques as herein described, are provided.
A spinneret assembly for spinning polymeric fibers, including: (a) a cap provided with an inlet port and a flared lower surface that flares outwardly from the inlet port in the direction of flow; (b) a spinneret having numerous spinning flow channels through its thickness; (c) a filter freely resting on the spinneret; and (d) a flow guide with a tapered geometry mounted in a cavity defined by the cap and the spinneret. The flow guide has an apex facing the inlet port, a base facing the filter, and one or more side surfaces tapering up to the apex. A diverging flow passage is defined by the tapering side surface(s) of the flow guide and the cap's flared lower surface. The base of the flow guide is spaced apart from an upper surface of the spinneret, creating a space that is in fluid communication with the divergent flow passage.
D01D 5/24 - Formation of filaments, threads, or the like with a hollow structureSpinnerette packs therefor
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
77.
A PROCESS FOR PRODUCING POLYACRYLONITRILE-BASED FIBER HAVING CONTROLLED MORPHOLOGY
The present disclosure relates generally to a process for producing polymer fibers, typically polyacrylonitrile-based fibers, the morphology of which is controlled by the use of a polymer additive to form a polymer blend with polyacrylonitrile, which is then subjected to certain coagulation and washing conditions. The present disclosure also relates to carbon fibers produced by processing the polymer fibers made.
D01F 6/18 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
Multilayer composites laminates comprising at least two layers, wherein each layer comprises continuous reinforcing fibers and a polymer matrix, said polymer matrix comprising at least one thermoplastic polymer selected from the group consisting of aliphatic polyamides, semi-aromatic polyamides, polyaryleneetherketones, polyphenylenesulfides and liquid crystalline polymer, and at least one impact modifier. The invention further relates to articles incorporating the thermoplastic composite laminate.
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
79.
Process for preparing carbon fibers from low polydispersity polyacrylonitrile
The present disclosure relates to a process for producing one or more carbon fiber precursor fibers, particularly by spinning a polymer solution, wherein the polymer has a polydispersity (PDI) of less than or equal to 2, in a coagulation bath with a jet stretch of about 5 to about 60. The one or more carbon fiber precursor fibers produced may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.
C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
D01D 5/14 - Stretch-spinning methods with flowing liquid stretching media
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
Spoolable tubing suitable for use in the oil industry, and more particularly spoolable composite tubing with the ability to withstand high stress and high cracking resistance.
Polymer compositions for making stabilized polymeric articles that are resistant to at least one deleterious effect of discoloration, cracking, or crazing upon exposure to UV-C (190-280 nm) light are provided herein, wherein the polymer compositions include: (i) an organic polymeric material; and (ii) a stabilizer composition comprising: an antioxidant selected from the group consisting of hindered phenols, phosphites and phosphonites, and mixtures thereof; and a light stabilizer selected from the group consisting of hindered amine light stabilizers (HALS), UV absorbers (UVA), hindered benzoates, and mixtures thereof, even where barium compounds (such as barium salts) are absent from the stabilizer composition, and with the proviso that the HALS is not bis(2,2,6,6,-tetramethyl-4-piperidyl) sebacate (TINUVIN™ 770) alone. At least one of reduced discoloration, cracking, or crazing upon exposure to UV-C light is associated with the use of the light stabilizer in combination with the antioxidant compared to the antioxidant in the absence of the light stabilizer. Methods of stabilizing organic polymeric materials against the deleterious effects of UV-C light by adding to the organic polymeric materials the antioxidant and the light stabilizer, are also provided.
Polymer compositions for making a stabilized polymeric articles that are resistant to discoloration upon exposure to UV-C light having: (i) an organic polymeric material; and (ii) a hindered phenol, organic phosphite, or a combination thereof, with the provisos that: (a) the OH group on the aromatic ring of the hindered phenol is flanked by two tertiary hydrocarbyl groups, and (b) the organic phosphite does not have any -OAr group linked directly to the P atom of the phosphite, wherein Ar represents an unsubstituted or substituted aryl group, are provided herein. Reduced discoloration is associated with the use of specific hindered phenols and the organic phosphites compared to other hindered phenols and organic phosphites, even in the absence of other polymer additives including UV absorbers, hindered amine light stabilizers (HALS), metal oxides and/or barium salts. Methods of reducing discoloration of an organic polymeric material upon exposure to UV-C light are also provided, wherein such methods include the step of adding to the organic polymeric material a stabilizing amount of hindered phenol, organic phosphite, or a combination thereof.
Polymer compositions for making stabilized polymeric articles that are resistant to at least one deleterious effect of discoloration, cracking, or crazing upon exposure to UV- C (190-280 nm) light are provided herein, wherein the polymer compositions include: (i) an organic polymeric material; and (ii) a stabilizer composition comprising: an antioxidant selected from the group consisting of hindered phenols, phosphites and phosphonites, and mixtures thereof; and a light stabilizer selected from the group consisting of hindered amine light stabilizers (HALS), UV absorbers (UVA), hindered benzoates, and mixtures thereof, even where barium compounds (such as barium salts) are absent from the stabilizer composition, and with the proviso that the HALS is not bis(2,2,6,6,-tetramethyl-4-piperidyl) sebacate (TINUVIN™ 770) alone. At least one of reduced discoloration, cracking, or crazing upon exposure to UV-C light is associated with the use of the light stabilizer in combination with the antioxidant compared to the antioxidant in the absence of the light stabilizer. Methods of stabilizing organic polymeric materials against the deleterious effects of UV-C light by adding to the organic polymeric materials the antioxidant and the light stabilizer, are also provided.
The present disclosure relates to a process for producing homogeneous solutions comprising dissolved polyacrylonitrile-based polymer, and a system suitable therefor. The homogeneous polymer solutions produced by the process described herein may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.
C08J 3/05 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
(1) Chemical products for use in the manufacture of plastic and plastic components; antioxidants for use in the manufacture of plastic and plastic components; antioxidants for manufacture of thermal stabilizers for styrene butadiene rubber (SBR), polyolefins, polymers, and polymeric fibers; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; adhesives for use in the manufacture of plastic and plastic components; adhesives for use in the textile and agricultural industry.
86.
Fabrication of three-dimensional structures from preform blanks
A method for producing a three-dimensional preform from an intermediate preform blank (30, 70), which contain undulations (31) in a portion thereof. The preform blank (30, 79) may be formed on a tool surface (60) containing undulations (61) using an automated placement method such as Automated Tape Laying (ATL) or Automated Fiber Placement (AFP), in which narrow-width strips of material are dispensed side-by-side. Various preform blanks (30, 70) and molding tools (10, 50, 80) have been designed to produce shaped preforms having generally C-shape and Z-shape cross-sections.
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29D 99/00 - Subject matter not provided for in other groups of this subclass
A method for shaping a composite material, the method comprising positioning a composite system in a press tool, the press tool comprising a male mold and a corresponding female mold separated by a gap, wherein the male mold and the female mold each independently have a non-planar molding surface, compressing the composite system between the male mold and the female mold by closing the gap between the male mold and the female mold; and maintaining the male mold and the female mold in a closed position until the viscosity of the composite system reaches a level sufficient to maintain a molded shape.
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
Composite materials and structural adhesives containing particles of functionalized polymers as a toughening agent. The particles are composed of functionalized polyaryletherketone (PAEK) polymer or copolymer thereof that contain chemical functional groups capable of reacting with a thermoset resin component to form covalent bonds.
C09J 171/00 - Adhesives based on polyethers obtained by reactions forming an ether link in the main chainAdhesives based on derivatives of such polymers
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 65/48 - Polymers modified by chemical after-treatment
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
C09J 163/00 - Adhesives based on epoxy resinsAdhesives based on derivatives of epoxy resins
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B32B 38/00 - Ancillary operations in connection with laminating processes
89.
Multifunctional surfacing material with burn-through resistance
A multifunctional surfacing material capable of providing lightning strike protection (LSP) and burn-through resistance. In one embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers, at least one of which contains one or more fire retardant compounds. In another embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers one of which is a thermally-stable layer. The surfacing material is co-curable with a composite substrate, e.g. prepreg or prepreg layup, which contains fiber-reinforced matrix resin.
B32B 3/14 - 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 characterised by a face layer formed of separate pieces of material
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 3/26 - 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 particular shape of the outline of the cross-section of a continuous layerLayered 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 layer with cavities or internal voids
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C08G 59/18 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
90.
Flame-retardant epoxy composition and method of using the same
A low-density, halogen-free epoxy composition that is flame-resistant upon curing and is suitable for use as a potting compound. The epoxy composition includes: (a) an epoxy component; (b) at least one curative; (c) at least one latent curing accelerator; (d) a toughening component that includes nano-sized core shell rubber (CSR) particles having particle size of less than 1 micron; (e) a fire-retardant component that is halogen-free; and (f) hollow microspheres for reducing the density of the composition. The fire-retardant component includes a mixture of: (i) at least one polyphosphate; (ii) at least one metal borate; and (iii) at least one compound selected from alkaline earth metal hydroxides and aluminum hydroxides.
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
B32B 3/12 - 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 characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
Prepreg tapes suitable for automated placement process are formed by slitting a sheet of partially impregnated prepreg. The partially impregnated prepreg is composed of unidirectional fiber tows partially embedded in a resin layer and has a continuous resin surface only on one side. In some embodiments, one or two nonwoven veil(s) is/are incorporated into the partially impregnated prepreg.
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
92.
Method for making a di(aminoaryl)fluorene compound
6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.
Stabilized compositions having an organic material to be stabilized and a resin masterbatch system provided as closed end pellets are provided herein, along with processes for producing stabilized articles.
A curable composite laminate having an interlaminar region formed between adjacent layers of reinforcement fibers. The interlaminar region contains soluble polyimide particles that are dissolvable in the one or more thermoset resins at a curing temperature of the curable matrix resin, and insoluble thermoplastic particles that remain as discrete particles in the interlaminar region at the same curing temperature. Such curable composite laminate is capable of high resistance to the propagation of delamination upon curing.
The present disclosure relates to aqueous compositions containing water and the ammonium salt of a polyamide-amic acid. Processes for producing such aqueous compositions and uses thereof are described.
The present disclosure relates to the production of polyacrylonitrile-based polymers with high conversion by a process comprising reacting acrylonitrile with at least one comonomer in the presence of a radical initiator in a liquid medium, wherein the radical initiator is present in an amount of from about 0.6 wt % to about 1.8 wt %, relative to the amount of acrylonitrile, and wherein no chain transfer agent is present. The polyacrylonitrile-based polymers produced may be used for producing carbon fiber, typically carbon fiber used in manufacturing composite materials.
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
97.
Stabilizer compositions and methods for using same for protecting polymeric organic materials from UV light and thermal degradation
Stabilizer compositions having a stabilizing amount of at least one co-active agent; an ultraviolet light absorber chosen from orthohydroxyphenyl triazine compounds and/or benzoxazinone compounds; and a hindered amine light stabilizer, are provided herein, along with masterbatch concentrates containing same, and processes for using same for stabilizing polymeric organic materials to protect against light and thermal degradation due to exposure to UV irradiation.
Fiber reinforced composite material comprising a thermoplastic matrix comprising blends of poly(ether ketone ketone) (PEKK) polymers, their method of manufacture and articles obtained therefrom.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B29C 67/00 - Shaping techniques not covered by groups , or
C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
D02G 3/00 - Yarns or threads, e.g. fancy yarnsProcesses or apparatus for the production thereof, not otherwise provided for
C08K 3/00 - Use of inorganic substances as compounding ingredients
The present disclosure relates to a process for producing polymer fibers comprising as least one additive, typically an additive that is insoluble in the polymer solution from which it is made. The present disclosure also relates to carbon fibers, typically multifunctional carbon fibers, produced by such process.
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
D01F 1/09 - Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
A sulfur reaction product formed by reacting elemental sulfur with an amine or epoxy compound containing reactive functionality. Such reaction product can be incorporated into a thermosettable resin composition as a modifier. When the thermosettable composition containing such sulfur reaction product is cured, the resulting crosslinked thermoset displays improved stress relaxation characteristics in line with vitrimer like behaviors.
C08G 75/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
