Abstract: A curing agent composition based on diaminomethylcyclohexane and 1,3-cyclohexanebis(methylamine) can be used in an epoxy resin composition for chemical fastening of structural elements. A corresponding epoxy resin composition and multi-component epoxy resin system can contain the curing agent composition. A method can be used for chemical fastening of structural elements in boreholes with the epoxy resin composition or the multi-component epoxy resin system.

Abstract: A resin composition includes a core-shell rubber, a vinyl-containing benzoxazine resin and a maleimide resin, wherein the core-shell rubber has a core-shell ratio of 6.0:4.0 to 9.5:0.5. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and achieves improvements in at least one, more or all of the properties including dissipation factor, copper foil peeling strength (3 ?m copper foil), ten-layer board T300 thermal resistance, ten-layer board glass transition temperature, ten-layer board delamination temperature, inner resin flow, and resin filling property of open area.

Abstract: A rubber compound for the preparation of portions of pneumatic tyres comprising a cross-linking unsaturated chain polymer base, a filler system and a vulcanization system. The filler system comprises (a) a first carbon black having a surface area less than or equal to 170 m2/gr in a quantity greater than or equal to 25 phr; (b) a second carbon black having a surface area greater than or equal to 250 m2/gr in a quantity such that the ratio between the quantity of the first carbon black and the quantity of the second carbon black is greater than or equal to 3 and less than or equal to 10; (c) a carbon black dispersing agent in a quantity of less than or equal to 1 phr.

Abstract: The present disclosure relates to an acrylic adhesive composition exhibiting excellent lap shear strength and adhesive strength by including an adhesion enhancer of a specific component.

Abstract: A catalytic resin is formed by mixing a resin and either homogeneous or heterogeneous catalytic particles, the resin infused into a woven glass fabric to form an A-stage pre-preg, the A-stage pre-preg cured into a B-stage pre-preg, thereafter held in a vacuum and between pressure plates at a gel point temperature for a duration of time sufficient for the catalytic particles to migrate away from the resin rich surfaces of the pre-preg, thereby forming a C-stage pre-preg after cooling. The C-stage pre-preg subsequently has trenches formed by removing the resin rich surface, the trenches extending into the depth of the catalytic particles, optionally including drilled holes to form vias, and the C-stage pre-preg with trenches and holes placed in an electroless bath, whereby traces form in the trenches and holes where the surface of the cured pre-preg has been removed.

Abstract: The present invention relates to a dipping material composition for cord fabric which is free of resorcinol and formaldehyde and production methods thereof comprising the steps of adding an acrylic resin containing a carboxylic acid group, adjusting pH value, adding an epoxy resin, adding a blocked polyisocyanate, adding a styrene butadiene latex and adding a styrene butadiene vinylpyridine latex into water, obtaining the dipping material, enabling the synthetic fiber and the rubber used in cord fabric reinforced rubber materials production to be attached to each other by providing an interface between the two said materials. Since the composition is formaldehyde-free, it is not as hazardous for human health as resorcinol-formaldehyde-latex (RFL) based systems and it is also environmentally friendly.

Abstract: A recycled crumb rubber coating with a hydrophobic surface and a method for making the same. The coating with a hydrophobic surface includes a recycled crumb rubber coating layer comprising about 24-50 wt % of a crumb rubber, and about 25-75 wt % of an epoxy comprising a liquid epoxy resin and an epoxy hardener, and a first silane film comprising at least one silane and disposed on a surface of the recycled crumb rubber coating layer to form the hydrophobic surface. The method includes (a) mixing a crumb rubber with a liquid epoxy resin to form a first mixture, (b) mixing the first mixture with an epoxy hardener to form a recycled crumb rubber coating layer, and (c) depositing a first silane film comprising at least one silane on a surface of the recycled crumb rubber coating layer to form the hydrophobic surface of the recycled crumb rubber coating.

Abstract: A rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system, an epoxy resin, at a content within a range extending from 1 to 20 phr, and a polyimine hardener, at a content within a range extending from 0.2 to 15 phr.

Abstract: The invention relates to a composition containing a particulate solid, an organic medium, and a (meth)acrylic polymer. The invention further relates to novel compounds, and the use of the (meth)acrylic polymer as a dispersant, typically a pigment dispersant.

Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.

Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.

Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.

Abstract: To provide a hard coating composition which forms a hard coat layer that has high visibility and good hardness, while having stretchability. To provide a technique which is capable of effectively preventing blocking phenomenon in a layered product such as a resin film without adversely affecting the visibility. The present invention provides a hard coating composition which contains (A) a phenolic novolac acrylate that has two or more acrylate groups and (B) an aromatic group-containing mono or poly(meth)acrylate compound that contains 1-2 mol of an alkylene oxide structure having two or three carbon atoms in each molecule. This hard coating composition contains 60-85 parts by mass of the phenolic novolac acrylate (A) and 15-30 parts by mass of the (meth)acrylate (B) per 100 parts by mass of the resin component contained in the hard coating composition.

Abstract: The present invention provides an epoxy-vinyl copolymerization type liquid resin composition and a cured product of the same. The resin composition contains: an epoxy resin having an epoxy resin equivalent of not more than 200 g/eq; an acid anhydride having an unsaturated double bond that is liquid at normal temperature or the acid anhydride having an unsaturated double bond that is liquid at normal temperature and maleic anhydride; a polyfunctional monomer which is liquid at normal temperature; an epoxy resin curing catalyst which accelerates a curing reaction of the epoxy resin with the acid anhydride or with the acid anhydride and maleic anhydride; and a radical polymerization catalyst which accelerates a curing reaction of the polyfunctional monomer. This makes it possible to reduce varnish viscosity and to enhance heat resistance of the cured product.

Abstract: Fiber for reinforcing rubber products, which comprises fiber coated with a coating film formed by a treating agent, wherein the treating agent comprises a rubber latex containing at least a vinylpyridine/styrene/butadiene terpolymer, a latex of an acrylonitrile/butadiene/styrene terpolymer, and a water-soluble condensate of resorcinol and formaldehyde.

Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23-24 wt % of the coating, the balance being epoxy. The epoxy has liquid epoxy resin and a hardener in a ratio of about 2:1 by weight. The epoxy may also include a viscosity reducing agent of about 1% of the total weight of the liquid resin and the hardener. The crumb rubber may be a blend of powdered crumb rubber and mesh crumb rubber.

Abstract: A coating composition for a solar cell backsheet of the present invention includes: (a) 10 to 40 mass % of vinyl ester resin or unsaturated polyester resin; (b) 30 to 60 mass % of vinyl monomer and/or (meth)acrylate monomer; (c) 5 to 40 mass % of denaturant (The components (a) to (c) are 100 mass % in total); (d) 0.1 to 15 parts by mass of an ultraviolet curing agent relative to 100 parts by mass in total of the components (a) to (c); and (e) 5 to 20 parts by mass of a white colorant relative to 100 parts by mass in total of the components (a) to (c).

Abstract: A composition for manufacturing the inner liners and inner tubes of tires, and a method of preparing the same. The composition includes the following two phases: A) a continuous phase of a composition of graphene oxide/rubber including graphene oxide, a reactive rubber, and a solid rubber; and B) a dispersion phase of an epoxy natural rubber or a thermoplastic resin. In the composition of graphene oxide/rubber, the graphene oxide leads to low gas permeability and remarkably reinforces the rubber composition. The epoxy natural rubber or thermoplastic resin is dispersed in the composition of graphene oxide/rubber and forms an islands-in-the-sea structure. The composition has low gas permeability, excellent mechanical properties, and flexibility, and is adhesive to adjacent rubber.

Abstract: A curable resin composition which contains an epoxy compound (A1), active ester compound (A2), filler (A3), and alicyclic olefin polymer (A4) containing groups which have reactivity with respect to epoxy groups, wherein a ratio of content of the alicyclic olefin polymer (A4) to 100 parts by weight of said epoxy compound (A1) is 2 to 50 parts by weight is provided. According to the present invention, a curable resin composition which is excellent in resin fluidity and which can give a cured article which is low in linear expansion and is excellent in wire embedding flatness, electrical characteristics, and heat resistance can be provided.

Abstract: A resin composition excellent in both characteristics of preservation stability and connection reliability is provided by a resin composition that contains (a) an epoxy compound, (b) a microcapsule type hardening acceleration agent, and (c) an inorganic particle whose surface is modified with a compound that has an unsaturated double bond.

Abstract: An adhesive composition for a pre-applied underfill sealant comprising: (a) a radical polymerizable monomer having one or more functional groups selected from the group consisting of vinyl group, maleimide group, acryloyl group, methacryloyl group and allyl group, (b) a polymer having a polar group, (c) a filler, and (d) a thermal radical initiator.

Abstract: The present invention provides fast fixturing two part adhesive compositions which include a first part containing a (meth)acrylic component and a cure system for the epoxy resin component of the second part and a second part containing an epoxy resin component and a cure system for the (meth)acrylic component of the first part.

Abstract: A resin composition includes (A) an epoxy resin; (B) a benzoxazine (BZ) resin; (C) a styrene maleic anhydride (SMA) copolymer; and (D) a polyester. The resin composition includes specific ingredients of a polyester and is characterized by specific proportions thereof so as to achieve a low delta Tg value of copper clad laminates manufactured in accordance with the resin composition and attain a low dielectric constant, a low dielectric dissipation factor, high heat resistance, and high fire retardation of the copper clad laminates and printed circuit boards manufactured in accordance with the resin composition.

Abstract: Fiber for reinforcing rubber products, which comprises fiber having a first coating film formed by a first coating agent comprising a condensate of resorcinol and formaldehyde, and a rubber latex, wherein the fiber has a second coating film formed by a second coating agent comprising an uncured phenol resin and a rubber, on the first coating film.

Abstract: According to the invention, a liquid resin composition which has favorable wet spreadability after mounting of a chip and exhibits excellent solder cracking resistance even in a high-temperature solder reflow process at about 260° C., i.e., even when being used in lead-free solder, and a semiconductor package using the liquid resin composition are provided. In the liquid resin composition of the invention, an acrylic copolymer having a radical polymerizable functional group contains alkyl(meth)acrylate as a constituent monomer having a linear or branched alkyl group having 6 to 9 carbon atoms in an amount of 10 wt % to 40 wt % of the entire constituent monomers.

Abstract: Disclosed is an epoxy resin composition for printed circuit board, which includes (A) an epoxy resin comprising a dicyclopentadiene type epoxy resin; (B) a copolymer of styrene and maleic anhydride as a curing agent; (C) a curing accelerator; (D) an optional silane dispersing agent; (E) an optional phosphorous-containing flame retardant; (F) an optional toughening agent; and (G) an optional inorganic filler.

Abstract: The invention provides a resin composition that is excellent in terms of coating workability and can supply reliability, including the soldering reflow resistance, to a semiconductor device when being used as a die attach material or an adhesive for a heat dissipation member. The resin composition of the invention contains a polymer or copolymer of a conjugated diene compound having at least one functional group, a thermosetting resin and a (meth)acryl polymer or copolymer having a reactive functional group that can react with other reactive groups.

Abstract: An adhesive material and articles incorporating the same is disclosed. The adhesive material includes a liquid epoxy resin and rubber, a solid epoxy resin and rubber, one or more curing agents, and a filler.

Abstract: According to the invention, a liquid resin composition which has favorable wet spreadability after mounting of a chip and exhibits excellent solder cracking resistance even in a high-temperature solder reflow process at about 260° C., i.e., even when being used in lead-free solder, and a semiconductor package using the liquid resin composition are provided. In the liquid resin composition of the invention, an acrylic copolymer having a radical polymerizable functional group contains alkyl(meth)acrylate as a constituent monomer having a linear or branched alkyl group having 6 to 9 carbon atoms in an amount of 10 wt % to 40 wt % of the entire constituent monomers.

Abstract: A coating composition for a solar cell backsheet of the present invention includes: (a) 10 to 40 mass % of vinyl ester resin or unsaturated polyester resin; (b) 30 to 60 mass % of vinyl monomer and/or (meth)acrylate monomer; (c) 5 to 40 mass % of denaturant (The components (a) to (c) are 100 mass % in total); (d) 0.

Abstract: The invention provides the use of mixtures based on aqueous dispersions of polychloroprene to produce fiber products finished therewith, a process for the production thereof and the use of these finished fiber products to produce textile-reinforced and fiber-reinforced concrete and other products based on cement.

Abstract: An epoxy-based coating system for metal industrial equipment and parts provides superior abrasion resistance compared to known coating compositions. The coating system includes a resin component and a hardener component. The resin component includes one or more bisphenol epoxy resins and inorganic beads. The hardener component includes a butadiene acrylonitrile rubber, one or more curing agents, and inorganic beads. The resin component and hardener component are mixed together, applied to a metal surface, and cured to form the abrasion-resistant coating.

Abstract: An object of the present invention to provide a rubber composition for sidewall and a tire having sidewall using thereof as well as a rubber composition for clinch and a tire having clinch using thereof that adjust scorch time and suppress surface bloom, reduce rolling resistance, can obtain sufficient rigidity as sidewall and clinch, and can improve elongation at break and durability. The present invention relates to a rubber composition for sidewall and a rubber composition for clinch including specific amount of an alkylphenol-sulfur chloride condensate indicated by the formula (B1): and specific filler, based on a rubber component including specific amount of a natural rubber and/or an isoprene rubber and a butadiene rubber and/or an epoxidized natural rubber, and a tire having sidewall using thereof and clinch using thereof.

Abstract: A rubber composition that can improve in good balance the fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire that uses this rubber composition are provided. This rubber composition contains a rubber component, and carbon black and/or silica, wherein based on 100% by mass of the rubber component, the rubber component contains 5 to 50% by mass of natural rubber, 0.3 to 10% by mass of an epoxidized natural rubber, and at least 5% by mass of a conjugated diene polymer that has a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified, and wherein a total content of the carbon black and the silica is 3 to 100 parts by mass per 100 parts by mass of the rubber component.

Abstract: The present invention relates to a rubber composition based on at least an epoxidized natural rubber—, a reinforcing filler and, as plasticizing agent, an alpha-methylstyrene polymer resin. The invention also relates to the use of such a composition for the manufacture of a tyre tread exhibiting an improved compromise of properties with respect to grip on wet ground and rolling resistance.

Abstract: A two-part epoxy-based structural adhesive composition comprising a curable epoxy resin, an amine curing agent, a toughening agent, and an oil-displacing agent. The structural adhesive may optionally include reactive liquid modifiers, fillers, secondary curatives, reactive diluents, surfactants, metal salts, pigments and combinations thereof. The structural adhesive may be used to form bonded joints between adherends having clean surfaces, as well as those having surfaces contaminated with hydrocarbon-containing materials, such as oils, processing aids and lubricating agents.

Abstract: The present invention provides a rubber composition for an inner liner including 21 to 50 parts by weight of (B) carbon black and/or silica and 0.25 to 6 parts by weight of (C) an alkylphenol-sulfur chloride condensate indicated by the formula (C1): (Wherein R1 to R3 are same or different and either is an alkyl group having 5 to 12 carbons; x and y are same or different and either is an integer of 2 to 4; and n is an integer of 0 to 10.), wherein whole sulfur content is 0.3 to 1.5 parts by weight, based on 100 parts by weight of (A) a rubber component including 60 to 100% by weight of a butyl rubber for the purpose of keeping air permeation resistance and improving low heat build-up property and durability.

Abstract: The present invention provides a rubber composition for a tire tread, in which processability, abrasion resistance, rolling resistance properties and wet grip performance are improved in a balanced manner. Specifically, the present invention provides a rubber composition for a tire tread comprising 5 to 150 parts by weight of silica having nitrogen-adsorbing specific surface area of 100 to 300 m2/g based on 100 parts of a rubber component containing 5 to 100% by weight of an epoxidized natural rubber, and 1 to 20 parts by weight of a silane coupling agent and 0.

Abstract: This invention relates to compositions useful as adhesives and more particularly to the preparation of epoxy-based adhesive composition with improved impact resistance and good adhesion to oily metal substrates.

Abstract: An oil resistant, elastomeric rubber composite, particularly suited for use as an elastic tape for garments requiring a high degree of oil resistance due to conditions of its use. The rubber composite is made from a unique blend of nitrile rubber, polychloroprene (neoprene), epoxidised natural rubber and natural rubber. The elastomeric composite has excellent compatibility between two rubbers of different polarity when properly compounded and processed. The composite formed as an elastic tape has a low modulus of elasticity, good needle tear strength when sewn inside a garment, and it provides a comfortable fit for long use in addition to having reduced oil swell and oil abosorption characteristics. Elastic tapes made from the elastomeric rubber composite are particularly suitable for swimwear, shower caps, head bands, face masks and other garments with direct skin contact.

Abstract: The invention relates to a thermosetting resin composition including a radically curable resin mixture of: a) 50-100 parts by weight of a radically curable resin that also contains a free monomer capable of copolymerising with it; b) 0-50 parts by weight of a shrink-resistant compound that can also contain an amount of copolymerisable free monomer, the total of (a) and (b) adding up to 100, and 2D-randomly distributed, discontinuous carbon fibres obtained by chopping split, continuous carbon fibre bundles to form packages of carbon filaments, which carbon bundles are provided with a sizing that is at least partially chemically bonded thereto, and with a binder whose solubility at room temperature in the copolymerisable free monomer present in the radically curable resin mixture amounts to at least 10% by weight, the weight percentage of carbon fibres relative to the resin composition being between 5 and 65% by weight, and optionally a filler also being present.

Abstract: This invention relates to erosion resistant foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) a multifunctonal acrylate; (c) a phenolic resin that is soluble in (a) and (b); and (d) an effective amount of a free radical initiator. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings.

Abstract: This invention relates to foundry binder systems, which will cure in the presence of sulfur dioxide and a free radical initiator, comprising (a) an epoxy novolac resin; (b) preferably a bisphenol F; (c) an acrylate; and (d) an effective amount of a free radical initiator. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings.

Abstract: The invention relates to a photo-cured dental pit and fissure sealant composition for caries prevention: i) based on the multifunctional prepolymer mixture of 2,2-bis-(4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl)propane (“Bis-GMA”), which has conventionally been used as dental pit and fissure sealant for caries prevention, and a multifunctional prepolymer formed by substituting hydrogen atoms in hydroxyl group with methacrylate groups in the Bis-GMA molecules; and ii) comprising a diluent, an inorganic filler, a photoinitiation system, and other additives. The dental pit and fissure sealant composition of the present invention is based on a multifunctional prepolymer mixture and has better physical and mechanical properties and biocompatibility than a conventional composition based on Bis-GMA only.

Abstract: A composition for the promotion of adhesion between a rubber formulation and a textile substrate is provided. The inventive composition comprises either a mixture of specific amine functional silanes and organo-functional silanes having reactive groups or groups with an affinity for rubber. The inventive method entails the use of the inventive composition or a silane compound having both an amine moiety and a reactive group having an affinity for rubber formulations, particularly an unsaturated carbon-carbon bond. The composition may be utilized to adhere any standard reinforcement-type textile, such as polyester or polyamide, to a standard rubber composition, such as SBR, NBR, or EPDM. A method for adhering textiles to rubber formulations is also provided involving a pre-dip, -spray, -coat, and the like, of the inventive composition on a reinforcement-type textile surface followed by the contacting of the rubber formulation.

Abstract: A composition for the promotion of adhesion between a rubber formulation and a textile substrate is provided. The inventive composition comprises either a mixture of specific amine functional silanes and organo-functional silanes having reactive groups or groups with an affinity for rubber. The inventive method entails the use of the inventive composition or a silane compound having both an amine moiety and a reactive group having an affinity for rubber formulations, particularly an unsaturated carbon-carbon bond. The composition may be utilized to adhere any standard reinforcement-type textile, such as polyester or polyamide, to a standard rubber composition, such as SBR, NBR, or EPDM. A method for adhering textiles to rubber formulations is also provided involving a pre-dip, -spray, -coat, and the like, of the inventive composition on a reinforcement-type textile surface followed by the contacting of the rubber formulation.

Abstract: There is provided a surfactant composition, a stable, self emulsifiable water borne curing agent composition, and methods for the manufacture of each, and two component water borne curable epoxy resin compositions. The surfactant composition comprises the reaction product of an a) a phenolic acid substituted with at least one carboxyl group and at least one hydrocarbyl group having at least 1 carbon atom; b) a polyepoxide compound; c) a polyamine compound having at least two primary amine groups; d) a reactive surfactant; and optionally e) a monoglycidyl, monocarboxylic acid, or monoisocyanate capping agent; wherein the reactive surfactant comprises an epoxide, a carboxylic acid or anhydrides thereof, or an isocyanate functional moeity, and a hydrophilic moiety comprising a polyoxyalkylene monool or polyol residue.

Abstract: A composition for the promotion of adhesion between a rubber formulation and a textile substrate is provided. The inventive composition comprises either a mixture of specific amine functional silanes and organo-functional silanes having reactive groups or groups with an affinity for rubber. The inventive method entails the use of the inventive composition or a silane compound having both an amine moiety and a reactive group having an affinity for rubber formulations, particularly an unsaturated carbon-carbon bond. The composition may be utilized to adhere any standard reinforcement-type textile, such as polyester or polyamide, to a standard rubber composition, such as SBR, NBR, or EPDM. A method for adhering textiles to rubber formulations is also provided involving a pre-dip, -spray, -coat, and the like, of the inventive composition on a reinforcement-type textile surface followed by the contacting of the rubber formulation.

Abstract: A resin composition comprising a resin (a) and a conductive filler (b), wherein the resin (a) contains a styrene type thermoplastic elastomer and/or an olefin type thermoplastic elastomer, said resin composition having a volume resistivity of from 10.sup.2 to 10.sup.12 .OMEGA..multidot.cm and a compression set (Cs1) of at most 35% by JIS K6301.

Abstract: Fiber-reinforced prepregs with superior tack containing thermosetting resin systems containing particulate, elastomers having a Tg of 25.degree. C. and below, as well as the composites prepared therefrom are disclosed.