Abstract: Disclosed is a chloropren rubber adhesive composition. The adhesive composition contains a chloroprene rubber; a tackifier resin; a chlorinated polyolefin; a solvent; and a component which is selected from the group consisting of components (A) and (B). The component (A) is combination of an epoxy resin and a curing agent, and the curing agent is selected from dicyandiamide, imidazole, imidazole derivative, onium compound, ketimine compound represented by the formula (I) or a ketimine derivative. The component (B) is a silane compound having at least two reactive groups, and the reactive group is selected from an epoxy group, a vinyl group, a hydroxy group, an acryloxy group, a methacryloxy group and alkoxy groups.

Abstract: The present invention relates to a ternary polymer blend particularly suited for use in tire treads and carcass ply compounds. The ternary blend is composed of, based on 100 parts by weight of the ternary polymer blend, from about 76 to 94 parts by weight of polyisoprene; 3 to 12 parts by weight of epoxidized natural rubber; from about 3 to 12 parts of chlorosulfonated polyethylene.

Abstract: This invention provides an acoustic vibrational material containing various fibers as the reinforcement material and having the epoxy resin as the matrix resin, wherein the epoxy resin is modified by a polybutadiene base elastomer containing not less than 90 mole percent of 1,2-linked units. The epoxy resin modified with the above polybutadiene elastomer exhibits a maximum value of loss coefficient at the temperature region near the room temperature. This region is much higher than that of the conventional epoxy resin modified with polybutadiene elastomer mainly including 1,4-linked unit. Decrease in elastic modulus of the epoxy resin with increase of temperature is lesser in the epoxy resin of the present invention, whereas larger in the conventional one. Thus compatibility between large internal loss and high elastic modulus is achieved.

Abstract: This invention provides a novel thermoplastic elastomer composition which is rich in flexibility and excellent in rubber elasticity over a broad temperature range, high-temperature creep characteristics, low-temperature impact resistance, mechanical strength and moldability, and have good oil resistance, good light discoloration resistance and extremely excellent toning properties in spite of thermoplastic elastomer and which is characterized by being obtained by dynamically heat-treating a mixture of (a) 100 parts by weight of a carbon-to-carbon double bond-containing rubber, (b) 5 to 300 parts by weight of a thermoplastic resin, (c) 0.5 to 30 parts by weight of an organosiloxane crosslinking agent having at least two SiH groups in the molecule, (d) 0.001 to 20 parts by weight of a hydrosilylating catalyst, (e) 0.5 to 20 parts by weight of a compatibilizing agent and, if necessary, (f) 30 to 300 parts by weight of a paraffinic oil.

Abstract: A pneumatic tire having a sulfur cured rubber composition as a circumferential tread. The sulfur cured rubber composition is composed of, based on 100 parts by weight of rubber, from about 1.0 to 15 parts by weight of epoxidized rubber; from about 1.0 to 15 parts by weight of a carboxylated nitrile rubber; and 98 to 70 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof. The sulfur cured rubber composition is further composed of a silica filler and a silica coupling agent.

Abstract: The present invention relates to a sulfur cured rubber composition particularly suited for use in tire treads. The sulfur cured rubber composition is composed of, based on 100 parts by weight of rubber, from about 1.0 to 15 parts by weight of epoxidized rubber; from about 1.0 to 15 parts by weight of a carboxylated nitrile rubber; and 98 to 70 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof. The sulfur cured rubber composition is further composed of a silica filler and a silica coupling agent.

Abstract: The present invention relates to a sulfur cured rubber composition particularly suited for use in tire treads. The sulfur cured rubber composition is composed of based on 100 parts by weight of rubber, from about 1.0 to 15 parts by weight of epoxidized rubber; from about 1.0 to 15 parts by weight of a carboxylated nitrile rubber; and 98 to 70 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof.

Abstract: The present invention relates to a sulfur cured rubber composition particularly suited for use in tire treads. The sulfur cured rubber composition is composed of, based on 100 parts by weight of rubber, from about 1.0 to 15 parts by weight of epoxidized rubber; from about 1.0 to 15 parts by weight of a carboxylated nitrile rubber; and 98 to 70 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof.

Abstract: An elastic composite is provided having natural rubber and epoxidized natural rubber components. Compared to known composites, the present composition achieves reduced oil swell and absorption, lower permanent set, lower modulus of elasticity, and high tear strength. When formed in a tape, the composition is extremely useful for legbands, straps and contours of swimwear and other garments.

Abstract: The present invention relates to a sulfur cured rubber composition particularly suited for use in tire treads and carcass ply compounds. The sulfur cured rubber composition is composed of, based on 100 parts by weight of rubber, from about 5 to 95 parts by weight of epoxidized rubber; from about 5 to 85 parts of a silica filler; from about 0.5 to 8.5 parts by weight of a silica coupling agent; and 95 to 5 parts by weight of a rubber selected from the group consisting of medium vinyl polybutadiene, styrene-butadiene rubber, synthetic cis-1,4-polyisoprene, synthetic 3,4-polyisoprene, natural rubber, cis-polybutadiene, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, acrylonitrile-butadiene rubber and mixtures thereof.

Abstract: A flame-retardant thermoplastic resin composition is disclosed, comprising (A) a thermoplastic resin and (B-1) a halogenated epoxy resin whose epoxy groups are blocked by a long chain aliphatic carboxylic acid or (B-2) a mixture prepared by melt mixing (b1) a halogenated epoxy resin or (b2) a halogenated epoxy resin whose epoxy groups are blocked with (b3) a long chain aliphatic carboxylic acid. The composition has easy release from mold and satisfactory thermal stability during molding.

Abstract: The present invention relates to a polyol, polyurethane resin, rigid polyurethane foam, preparation process thereof and a preparation process of a rigid polyurethane foam composite. The polyol comprises an epoxy resin based polyol, which may be combined with a phenol resin based polyol component and/or an aromatic amine based polyol component. The polyurethane resin, foam and composite using the polyol as a raw material has resistance to dissolution in a hydrochlorofluorocarbon and a hydrofluorocarbon which are foaming agents having very low public environmental hazards and can be used as a thermal insulation material or a thermal insulation structure for refrigerators, freezers, insulation panels, ships and vehicles.

Abstract: A film-forming composition comprises from 0.1-8% by weight of an oligomeric polyglycidyl ether or ester and a polymer mixture ofa) a graft polymer prepared by polymerizing a monomer mixture of acrylonitrile, and alpha-methylstyrene and/or an alkylmethacrylate; or methylmethacrylate optionally with other monomers, onto cross-linked alkylacrylate rubber particles;b) a partially cross-linked rubber-like copolymer derived from an alkylacrylate and other monomers;c) an uncross-linked polymer of styrenes, (meth)acrylonitrile, (meth)acrylic acid esters and/or vinyl carboxylic acids; and optionallyd) a graft polymer obtained from the polymerization of a mixture of acrylonitrile, and styrenes and/or an alkylmethacrylate; or methylmethacrylate optionally with other monomers, onto cross-linked alkylacrylate rubber particles.

Abstract: Dynamically vulcanized multi-component polymer blends are prepared containing thermoplastic polyolefins, non-vulcanized rubber, and ethylene-vinyl acetate-maleic anhydride terpolymer crosslinked in situ. The dynamically vulcanized blend is prepared from a crosslinkable composition containing thermoplastic polyolefin, rubber, non-crosslinked ethylene-vinyl acetate-maleic anhydride terpolymer, epoxy, and tertiary amine. The crosslinkable composition is crosslinked at an elevated temperature for sufficient time to crosslink the ethylene-vinyl acetate maleic anhydride terpolymer without substantial decomposition forming uniform dispersion of small particles of rubber and ethylene-vinyl acetate-terpolymer in the thermoplastic polyolefin matrix.

Abstract: Described is a liquid sprayable epoxy composition comprising a liquid epoxy resin, an effective reinforcing amount of a fiber, an elastomeric component and an amine containing epoxy curing agent capable of curing the composition at equal or greater than 40.degree. F. temperatures wherein the cured product is light stable and has a hardness on the Shore D scale. Further described is a method of forming in situ a cured product such as a truck bed liner by spraying, brushing or troweling the epoxy composition onto the substrate such as the trunk bed, curing and forming the product on the substrate at a temperature of at least 40.degree. F. temperature. The ratio of epoxy reactive groups to amine reactive groups ranges from 0.9 to 1.1:1. Further described is a technique of modifying the coating coefficient of friction by sand embedment between the induction period and cure set time of applied epoxy composition.

Abstract: An adhesive composition for metal-clad laminates which comprises:(a) 100 parts by weight of a polyvinylbutyral having an average polymerization degree of from 500 to 3,000 and a degree of butyralization of at least 60 mol %,(b) from 10 to 200 parts by weight of an epoxidized polybutadiene per 100 parts by weight of the polyvinylbutyral, the epoxidized polybutadiene having a number average molecular weight of from 1,000 to 10,000 and an epoxy equivalent weight of from 200 to 2,000, and(c) from 1 to 10 parts by weight of a hardener for the epoxidized polybutadiene per 100 parts by weight of the epoxidized polybutadiene.

Abstract: An epoxy resin composition useful for sealing a semiconductor device includes 100 parts by weight of epoxy resin, 30-75 parts by weight of phenolic resin, 320-570 parts by weight of silica powder, and 2-30 parts by weight of styrene-butadiene-methyl methacrylate copolymer. The surface of the silica powder is treated, at room temperature, by 0.05-1.00% by weight of silane coupling agent, 0.05-1.00% by weight of a silicone base surface active agent, and 0.15-3.00% by weight of thermosetting silicone rubber.

Abstract: An end dam nosing material useful for expansion joints and having high levels of bonding strength, tensile strength, compressive strength, flexural capabilities, resiliency, and resistance to chemical action is disclosed. The end dam nosing material of the present invention does not require the addition of external heat for curing. The end dam nosing material of the present invention comprises a mixture of a dipolymerized elastomer, an epoxy resin, a filler material and an amount of a curing agent effective to cure the epoxy resin and generate sufficient heat to cure the dipolymerized elastomer.

Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.

Abstract: A modified epoxy resin composition having improved flexibility which comprises a reaction product of an epoxy resin and a synthetic rubber reactive with an epoxy resin in the presence of a nonionic or anionic surfactant, which has uniform and stable dispersion state of the rubber in epoxy resin without increase of viscosity. The epoxy resin composition is useful as a material for adhesives and coating agents.

Abstract: A hot melt magnetic sealant that exhibits improved adhesion to oil covered galvanized ferrometallic substrates and to epoxy electrodeposition coated ferrometallic substrates is disclosed. The sealant comprises magnetic filler particles, a hydrocarbon resin, a tackifier resin, a plasticizer, an epoxy resin and an epoxy curing agent. A method for making a hot melt sealant tape comprising mixing a formulation of magnetizable particles, a hydrocarbon resin, a tackifier resin, a plasticizer, an epoxy resin and an epoxy curing agent, extruding the mixture to form a tape and exposing the tape to an electromagnetic field is also disclosed. Methods for using the magnetic sealant tape to seal a joint between ferrometallic members having oil covered galvanized surfaces or epoxy electrodeposition coated ferrometallic members comprising disposing the tape to cover the joint and heating the tape are also disclosed.

Abstract: An epoxy resin composition for encapsulation of semiconductor device comprises the components (a), (b), (c) and at least one of the components (d) and (e) as shown below:(a) 100 parts by weight of an epoxy resin having at least 2 epoxy groups in one molecule;(b) 8 to 65 parts by weight of a novolak type phenolic resin with an ortho ratio less than 50%;(c) 1.2 to 40 parts by weight of a polyvinyl acetal compound;(d) 0.8 to 30 parts by weight of a silicone oil; and(e) 4 to 80 parts by weight of a rubber-modified phenolic resin.The described epoxy resins composition for encapsulation of semiconductor devices can retain its high glass transition temperature in the cured product and also has low modulus of elasticity, as well as excellent humidity resistance and thermal shock resistance.

Abstract: The present invention relates to resin compositions comprising a mixture of at least two resins, one resin consisting of the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol with a carboxylic acid, and another resin consisting of a carboxylic acid-modified ester of a polyvalent alcohol.

Abstract: Resin compositions comprising two resins A and B, wherein resin A consists of the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol and a monovalent carboxylic acid and resin B consists of a carboxylic acid modified fatty acid ester of a polyvalent alcohol.These resins compositions are suitable for linoleum manufacture.

Abstract: A polyester resin composition for forming an impact resistant article is described, comprising from 40 to 97 parts by weight of polyethylene terephthalate and from 3 to 60 parts by weight of at least one polyester selected from(1) an ethylene terephthalate-based polyester comprising from 5 to 25 wt % of at least one dibasic acid represented by formula (I) ##STR1## wherein A and B each represents a hydrogen atom, an alkyl group, or a phenyl group, and n is an integer of not less than 10, and ester bond-forming derivatives,(2) an ethylene terephthalate-based polyester comprising 3 to 25 wt % of at least one polyalkylene glycol having a molecular weight of from about 500 to 20,000, and(3) polyarylate, which composition further contains, per 100 parts by weight of the polyester, (a) from 0.05 to 10 parts by weight of at least one of an inorganic crystal nucleating agent having an average particle diameter of not more than 50 .mu.

Abstract: An epoxyester linear block oligomer made with n-1 moles fatty acid units terminated with carboxylic acid groups and n moles of epoxy oligomer is particularly suited for chip-resistant paints made with a low pigment volume concentration.

Abstract: A high solids coating composition which comprises 10-96 percent by weight resin solids of a low molecular weight epoxy oligomer, 2-35 percent by weight crosslinking glycoluril-formaldehyde resin and a primary sulfonic acid catalyst. The oligomer is condensed upon heating into a high molecular weight polymer film with simultaneous crosslinking with the crosslinking agent to provide the desired film properties.

Abstract: Cured polyfunctional epoxy resins including tris(hydroxyphenyl)methane triglycidyl ether are toughened by addition of polybrominated polymeric additives having an EE below 1500 to the pre-cure composition. Carboxy-terminated butadiene-acrylonitrile rubber is optionally present in the pre-cure mixture as such or as a pre-formed copolymer with other reactants. Reinforced composites, particularly carbon-reinforced composites, of these resins are disclosed and shown to have improved toughness.

Abstract: Elastomers reinforced with fibrous composite materials and having improved properties are obtained if the strengthening means used are composite materials based on reinforcing fibres and reactive resins which are coated with adhesion promoters based on polyisocyanates.

Abstract: A resinous protective coating useful in adhering plastics to metallic substrates. The protective coating is particularly useful as a solder mask and in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating, upon being subjected to heat, goes from a liquid or soft "gel-like" state into a solid phase without bleeding. The protective coating is resistant to copper, nickel and gold electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.

Abstract: A soft vinyl chloride resin composition having a light weight and a superior abrasion resistance and lusterless surface is provided, which composition is obtained by blending 100 parts by weight of a vinyl chloride copolymer consisting of 99.0 to 99.95% by weight of vinyl chloride and 1.0 to 0.05% by weight of a polyethylene glycol diacrylate or a polyethylene glycol dimethacrylate both having 4 to 50 polymerization units of ethylene glycol, mainly with (a) 5 to 100 parts by weight of a filler having a specific gravity of 0.7 or less and a compressive strength of 70 Kg/cm.sup.2 or higher and (b) 30 to 150 parts by weight of a plasticizer.

Abstract: This invention is directed to curable molding compositions containing a mixture of a poly(acrylate); a polymerizable ethylenically unsaturated monomer which serves to crosslink the poly(acrylate) to a thermoset product; a crosslinkable vinyl monomer having a reactivity ratio (r.sub.1) with styrene of greater than one and at least one of the following: (i) a second crosslinkable vinyl monomer having a reactivity ratio (r.sub.1) with styrene of greater than one, (ii) an epoxy compound having at least one 1,2-epoxy group per molecule, and (iii) an unsaturated fatty acid ester; and a thermoplastic polymer low profile additive. The curable molding compositions exhibit improved shrink control during the curing reaction. This invention is also directed to fiber reinforced thermoset resin articles which exhibit generally improved surface appearance quality and can be produced by a rapid injection molding process from the curable molding compositions.

Abstract: A resinous protective coating useful in adhering plastics to metallic substrates. The protective coating is particularly useful as a solder mask and in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating, upon being subjected to heat, goes from a liquid or soft "gel-like" state into a solid phase without bleeding. The protective coating is resistant to copper, nickel and gold electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.

Abstract: A resinous protective coating useful in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating upon being subjected to heat goes from a high viscosity solution to a gel and then to a solid or from a soft "gel-like" state into a solid. The protective coating is resistant to copper electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.

Abstract: An epoxy resin composition having excellent adhesive and high mechanical strength is disclosed. The composition comprises:(A) a bisphenol A type epoxy resin present in an amount of at least 45 wt % of the total epoxy resin;(B) a novolak type epoxy resin present in an amount of at least 8 wt % of the total epoxy resin;(C) a glycidyl amine type epoxy resin (including the one used in (D)) present in an amount of at least 15 wt % of the total epoxy resin;(D) a reaction product of a butadiene-acrylonitrile copolymer having carboxyl groups on at least both ends of the molecule and a glycidyl amine type epoxy resin, said butadiene-acrylonitrile copolymer being present in an amount of 1.

Abstract: A plastisol composition which in the fused state exhibits superior abrasion resistance is described. The plastisol composition in addition to the vinyl chloride polymer paste resin and liquid plasticizer contains as a minor constituent a combination of (a) a polybutadiene diepoxide resin or a cycloaliphatic diepoxide resin, (b) an acid anhydride curing agent for the diepoxide resin, and (c) a cure catalyst for the diepoxide resin.

Abstract: An aqueous sizing composition for glass fibers and the resultant sized glass fiber strands are provided, where the sized glass fiber strands have an improved slip/flow property and resultant thermosetting articles reinforced with the sized glass fiber strands have improved impact properties. The aqueous sizing composition has a poly(vinyl acetate) silane copolymer, epoxy polymer, one or more lubricants, an organo silane coupling agent, which may be an amino-silane coupling agent, lubricant modified-amino-organo silane coupling agent, epoxy-containing silane coupling agent or a mixture of one or more of these coupling agents, one or more nonionic surfactants, a polyethylene-containing polymer, a wax, a hydrocarbon acid and water. The aqueous sizing composition is applied to glass fibers which are then produced into wet chopped glass fiber strands or continuous sized glass fiber strands.

Abstract: Glass fibers reinforced polymeric polymers can be produced with high strength properties such as tensile strength, flexural strength and impact strength by using sized glass fiber strands of the present invention. The sized glass fiber strands have a residue of an aqueous sizing composition comprising: aqueous dispersible, emulsifiable, or solubilizable polyurethane polymer, polyepoxide polymer, polyethylene-containing polymer, and wax, where the weight ratio of the polyethylene containing polymer to the wax is in the range of about 25 to 1 to about 1 to 25, and one or more amino silane coupling agents. In addition to the amino silane coupling agent, the sizing composition may have an epoxy silane coupling agent and/or a lubricant modified silane coupling agent. The wax can be deleted from the composition, when the polyethylene-containing polymer has limited branching. The sized glass fiber strands can be produced by conventional forming process or by a wet chopped glass fiber forming process.