Abstract: A process for producing a composite resin for a toner, comprising the steps of: mixing, in water, (a) a low-molecular weight polymer powder comprising particles, not less than 80% by weight of the particles having a diameter of from 20 to 2000 microns with (b) a high-molecular weight polymer emulsion; subjecting the thus obtained mixture to a coagulation treatment; and heating the resulting mixture to obtain a composite resin in which the low-molecular weight polymer particle and the high-molecular weight polymer are fixed and homogeneously mixed with each other.

Abstract: Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers. Thus, mixtures of polymers such as poly (methyl methacrylate) and poly (ethyl methacrylate) are dissolved under pressure in supercritical fluid solvents such as chlorodifluoromethane and expanded through a fine nozzle. As the SCF solvent evaporates, the polymer mixture deposits as a substantially homogeneous blend.

Abstract: Resins having a softening point from 10.degree. C. to 120.degree. C. especially 10.degree. C. to 80.degree. C. being a copolymer of a feed which is predominantly C.sub.5 olefines and diolefines and 10 to 60 wt. % of one or more monovinyl aromatic compounds are used as a tackifier for acrylic polymers or copolymers particularly in aqueous based pressure sensitive adhesives.

Abstract: Elastomers based on acrylates, which are comprised, in the amount of at least 40 wt. % and as much as 100 wt. %, of one or more copolymers having a molecular weight >50,000 daltons and comprised of units of:i) acrylate monomers in the amount of 50-95 wt. %, andii) macromonomers comprised of a vinylic group and, covalently bonded with such group, a polyvinyl unit selected from the group of acrylates and methacrylates and having a glass transition temperature Tg at least 60.degree. C. and molecular weight 500-100,000 dalton.

Abstract: A polymer composition comprising2-50 parts by weight of a fine particles component dispersed in a matrix described later, of (1) a high-nitrile (co)polymer, wherein the proportion of the nitrile polymeric unit (a) is at least 86% by weight based on the total of the high-nitrile (co)polymer, and98-50 parts by weight of a matrix of (2) a low-nitrile copolymer comprising the nitrile polymeric unit (a), the acrylic ester polymeric unit (b) and the aryl vinyl polymeric unit (c), wherein the proportion of the polymeric unit (a) is 50-85 % by weight and the polymeric unit (b) and the polymeric unit (c) occupy the remaining portion.

Abstract: The present invention provides a rubber composition which comprises the following components (A) and (B):(A) an ethylene copolymer rubber comprising ethylene and at least one compound selected from the group consisting of acrylic esters and methacrylic esters as constituting units, and(B) a hydrogenated unsaturated nitrile-conjugated diene copolymer rubber.This composition is well balanced in its properties such as strength characteristics, oil resistance, low-temperature resistance and ozone resistance.

Abstract: The invention deals with a processing aid for polymeric compositions. The processing aid is a terpolymer comprising 10-49% by weight of a vinyl aromatic monomer like styrene, 5-35% by weight of an acrylic nitrile, like acrylonitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate with a viscosity number of more than four as measured in dimethylformamide at 30.degree. C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.

Abstract: Thermoplastic molding materials obtained from polymers based on vinyl chloride contain from 2 to 80% by weight of a polymer ofa) from 2 to 100% by weight of a monomer of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and Ar is an isoaromatic group, or of a mixture of these monomers, andb) from 0 to 98% by weight of a monomer of the general formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl and Alk is C.sub.1 -C.sub.8 -alkyl, or of a mixture of these monomers, andc) from 0 to 5% by weight of further monomers capable of undergoing free radical polymerization (monomers III).The molding materials have a high heat distortion resistance.

Abstract: Elastomers based on acrylates, which are comprised, in the amount of at least 40 wt. % and as much as 100 wt. %, of one or more copolymers having a molecular weight>50,000 daltons and comprised of units of:i) acrylate monomers in the amount of 50-95 wt. %, andii) macromonomers comprised of a vinylic group and, covalently bonded with such group, a polyvinyl unit selected from the group of acrylates and methacrylates and having a glass transition temperature Tg at least 60.degree. C. and molecular weight 500-100,000 dalton.

Abstract: Homogeneous polymer mixtures of polymethacrylimides consist of a component (A), composed of from 30 to 90 percent by weight of methacrylalkylimide units and from 3.5 to 10 percent by weight of methacrylic acid units, and of a component (B1) or (B2) having from 10 to 50 percent by weight more methacrylalkylimide units than component (A), component (B1) having a degree of imidization of less than 95 percent and containing from 3.5 to 10 percent by weight of methacrylic acid units, and component (B2) having a degree of imidization greater than 95 percent and containing less than 3.5 percent by weight of methacrylic acid units.

Abstract: A flame-retardant injection-molding resin composition. The composition contains (A) 100 parts by weight of a flame-retardant resin composed of 30% to 80% by weight of styrene resin having a reduced viscosity of methyl-ethyl-ketone soluble portions of 0.2 to 0.55 dl/g in N,N-dimethylformamide at a concentration of 0.3 g/dl at 30.degree. C., and from 20% to 70% by weight of a polyvinyl chloride resin having a polymerization degree of from 400 to 800; and (B) 0.5 to 10 parts by weight of a copolymer of from 3% to 35% by weight of a vinyl cyanide compound, 30% to 97% by weight of an alkyl acrylate and 0% to 67% by weight of a vinyl monomer being copolymerizable with the vinyl cyanide compound and the alkyl acrylate. The flame-retardant injection-molding resin composition provides injection-molded articles of high impact strength and low delamination tendency and has excellent thermal stability, flame resistance and heat stability.

Abstract: Compatible mixtures of styrene copolymers of type SAN (AES, ABS, SAN) with polyglutarimides, characterized in that the polyglutarimides are prepared by imidization of poly(meth)acrylates and/or poly(meth)acrylic acid with amides of formulaX--Z--NHRwhereX=H, hydrocarbyl or, when ##STR1## a --NHR radical or a --Y--CO--NHR radical; R=aryl; ##STR2## --C.sub.6 H.sub.4 --SO.sub.2. The mixtures composed of SAN copolymers and N-aryl polyglutarimides having a Tg of at least 140.degree. C. are claimed as new mixtures.

Abstract: Disclosed is an antistatic thermoplastic resin composition comprised of (A) 100 wt.parts of a thermoplastic resin and (B) 0.1-40 wt.parts of a polymer comprising 20-100 wt. % of units an anionic monomer represented by the formula (I): ##STR1## wherein R.sub.1 is H or --CH.sub.3, A.sub.1 is ##STR2## in which n is 0, 1 or 2, ##STR3## in which B is an alkylene, arylene or aralkylene group which may have an ester bond, or ##STR4## in which B is as defined above and R.sub.6 is H or an alkyl group, or A.sub.1 is ##STR5## X is N or P, and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent an alkyl, aryl or aralkyl group may have a substituent,and 80-0 wt. % of units of a copolymerizable vinyl or vinylidene monomer.

Abstract: Vinyl halide polymer compositions exhibiting reduced gas permeability are described which comprise a mixture of(a) at least one vinyl halide polymer; and(B) from about 1 to about 40 parts by weight per 100 parts of vinyl halide polymer (A) of at least one olefinic nitrile polymer.The vinyl halide polymers preferably are vinyl chloride homopolymers and copolymers, and the olefinic nitrile polymers are copolymers of an olefinically unsaturated nitrile such as acrylonitrile and one or more monomers from the group of conjugated dienes, monoolefins, olefinically unsaturated carboxylic acid esters, and vinyl aromatic compounds. The olefinic nitrile polymer can be chosen or manufactured to have a refractive index which is similar to the refractive index of the vinyl halide polymer thereby resulting in a more transparent composition.

Abstract: A polymer blend comprises a high nitrile copolymer and a compatible thermoplastic polymer or copolymer containing polar groups, formed from monomers selected from the group consisting of alkylacrylamides, aliphatic and cyclic methacrylates, unsaturated carboxylic acid anhydrides, vinyl pyrrolidones, heterocyclic ring compounds containing two hetero atoms, lactones and phosphorus-containing monomers that form highly crystalline polymers. Such blends can be used to form films and membranes having improved thermal, mechanical and optical properties.

Abstract: Compositions of acrylic rubber and another rubber which can be nitrile rubber, hydrogenated nitrile rubber, fluoroelastomer, silicon rubber, or fluorosilicone rubber are described, in which the acrylic rubber can be uncured or at least partially crosslinked. The compositions are millable and processable and, by the addition of curatives for the nitrile rubber, hydroganted nitrile rubber, fluoroelastomer, siloicone rubber, or fluorosilicone rubber, can be further crosslinked to become vulcanizates which exhibit excellent resistance to the effects of hot air, hot oil, and ozone. The acrylic rubber is a copolymers from alkyl acrylate monomer which copolymer contains no crosslinking sites other than acrylate ester sites, and can be crosslinked by reaction with a paraffinic alcohol.

Abstract: A polymer blend comprises a high nitrile copolymer and a compatible thermoplastic polymer or copolymer containing polar groups, formed from monomers selected from the group consisting of alkylacrylamides, aliphatic and cyclic methacrylates, unsaturated carboxylic acid anhydrides, vinyl pyrrolidones, heterocyclic ring compounds containing two hetero atoms, lactones and phosphorus-containing monomers that form highly crystalline polymers. Such blends can be used to form films and membranes having improved thermal, mechanical and optical properties.

Abstract: The invention provides a rubber dispersed copolymer resin having excellent heat resistance, impact strength and moldability and composed of (1) a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and maleimide-type monomers, said rubbery polymer specificaly controlled occluding the copolymer of monomers, being grafted with the copolymer and/or forming a multicomponent gel together with copolymers, and (2) a continuous phase formed at least of a specifically controlled copolymer of the styrene-type, acrylonitrile-type and maleimide-type monomers. The resin is useful as a molding material for electric appliances, electronic equipment and cars.

Abstract: The invention relates to compositions comprising 20-80% of a vinyl chloride homopolymer (PVC) and 80-20% of at least one copolymer selected from the group consisting of polystyrene/polyethylene/butylene, acrylate/rubber, acrylate/rubber/styrene, acrylonitrile/styrene/acrylate, ABS, NBR, NAR, SAN, EVA and modified EVA, which compositions are stabilized with at least one tin compound of formula(n-C.sub.12 H.sub.25).sub.2 Sn[S(CH.sub.2).sub.n COOR].sub.2 (I) or(n-C.sub.12 H.sub.25)Sn[S(CH.sub.2).sub.n COOR.sup.1 ].sub.3 (II)or with a mixture of compounds of formulae I and II, wherein n is 1 or 2 and R and R.sup.1 are each independently of the other C.sub.6 -C.sub.18 alkyl. These compositions have improved heat storage properties and are particularly suitable for fabricating sheets and hollow bodies for use in the automotive industry.

Abstract: Thermoplastic elastomer blends containing polyvinyl chloride having improved oil resistance and low compression set are made by blending a crosslinked nitrile rubber with a polyvinyl chloride-acrylate copolymer. The amount of nitrile rubber can vary over a wide range as from about 1 part to about 400 parts by weight for every 100 parts by weight of the polyvinyl chloride-acrylate copolymer. The polyvinyl chloride-acrylate copolymer has an inherent viscosity of from about 0.3 to about 4.0 and is made from a vinyl chloride monomer with an optional vinyl component comonomer and one or more acrylate monomers having the formula ##STR1## wherein R.sup.1 is an aliphatic, an aromatic, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof, or hydrogen, and R.sup.

Abstract: Polymer powders comprising aggregated polymer particles, said powders having a low content of fines and being suitable as processing aids in the manufacture of polyvinyl chloride, are made by spray drying an aqueous dispersion (latex) of two emulsion polymers, one of which has a dynamic glass transition temperature above 90.degree. C. and the other of which has a dynamic glass transition below 105.degree. C., the latter being at least 10 K. degrees below the former.

Abstract: Thermoplastic polymer mixture with a high surface gloss on the basis of:a 50-95 wt. % ofa.1 20-90 wt. % of a copolymer of styrene and/or .alpha.-methyl-styrene with acrylonitrile with an acrylonitrile content of 18-27 wt. %, the copolymer having a fluidity of 3-20;a.2 5-60 wt. % of a copolymer of styrene and .alpha.-methyl-styrene with acrylonitrile with an acrylonitrile content of 25-40 wt. %, the copolymer having a fluidity of at least 25;a.3. 0-30 wt. % of a polyacrylate compound;b 5-50 wt. % ofb.1 a substantially saturated rubber andb.2 chlorinated polyethylene.The thermoplastic polymer mixture not only has a high surface gloss, but also the flow of the mixture has been improved substantially. As a result, the mixture has excellent processing characteristics.

Abstract: Curable compositions which comprise:(i) an acid-functional compound having an average of at least two carboxylic acid groups per molecule; and(ii) an anhydride-functional compound having an average of at least two cyclic carboxylic acid anhdyride groups per molecule; and(iii) an epoxy-functional compound having an average of at least one epoxy group per molecule; and(iv) a hydroxy-functional compound having an average of at least two hydroxyl groups per molecule;wherein at least one of the compounds (i), (ii), (iii) or (iv) comprises a film forming polymer.

Abstract: Composite resin particles each comprising a particulate crosslinked polymer to which a number of substantially linear, metal-containing polymer chains are chemically bonded. The invention also provide methods for the preparation of said composite resin particles. The present composite resin particles have self-film forming properties, can give a stable dispersion in an organic solvent or a resinous varnish and are specifically useful in paint industries. The particles are further characterized by having the desired properties of the metal element contained therein, as, for example, self-catalytic function in crosslinking, excellent biological activities and the like.

Abstract: Disclosed are compositions which are blends of vinylidene chloride-vinyl chloride copolymers with certain indene or 3-methylindene containing polymers.

Abstract: The present invention relates to a film comprising a low density linear ethylene copolymer of ethylene and a higher olefin and up to about 10 percent by weight of the total composition of an acrylonitrile homopolymer or copolymer.

Abstract: A polymer composition obtained by mixing, in an emulsion state,(A) from 20 to 90% by weight (as solid content of polymer) of an emulsion of polymer component (A) which is a polymer of a vinyl monomer and has a glass transition temperature of higher than 20.degree. C., a gel content of not higher than 10% and a solubility parameter of from 8.0 to 11.0 (cal/cc).sup.1/2 and which has a weight average molecular weight, based on polystyrene, of at least 1.5.times.10.sup.5, and(B) from 10 to 80% by weight (as solid content of polymer) of an emulsion of polymer component (B) which is a homopolymer of an acrylate monomer, a copolymer of acrylate monomers or a copolymer of an acrylate monomer with other copolymerizable monomer and has a glass transition temperature of not higher than 20.degree. C., a gel content of not higher than 70% and a solubility parameter of from 8.4 to 9.8 (cal/cc).sup.1/2,and separating the polymer from the emulsion mixture.

Abstract: The invention relates to a heat-curable binder mixture which comprises an organic synthetic resin A and a crosslinking agent B. Said synthetic resin A can be an epoxy resin, a polyester resin or an acrylate resin having a number average molecular weight of 500 to 20,000 and at least 0.2 equivalent per 100 g of resin of primary and/or secondary amino groups and/or hydroxyl groups, and said crosslinking agent B is an organic compound having at least 2 .beta.-alkoxyalkyl ester groups per molecule.

Abstract: A polyvinyl chloride resin composition is disclosed, which contains an .alpha.-methylstyrene/acrylonitrile copolymer in a specified amount. Forming sheet materials made therefrom having high heat distortion resistance as well as a favorable balance of tensile strength and stretching characteristics at elevated temperatures and being suitable for vacuum and pressure forming are also disclosed.

Abstract: Disclosed is a multicomponent resin composition which is essentially a blend of three polymers, each of which may be a copolymer, and undergoes a change in light transmittance and color with temperature. The first and second polymers are chosen in combination such that a blend thereof exhibits a phase diagram in which a lower critical solution temperature appears, and the third polymer is one which has mutual solubility, at least partially, with either or both of the first and second polymers. For example, polymethyl methacrylate and a copolymer of vinylidene fluoride and hexafluoroacetone, as the first and second polymers, and polyvinyl acetate are blended together. The phase separation temperature or coloring temperature of the multicomponent resin composition depends on the amount of the third polymer, and opacifying and coloring of the resin composition caused by heating become irreversible by cooling when the amount of the third polymer is sufficient.

Abstract: This invention relates to thermoplastic moulding compositions of vinyl chloride polymers, certain graft polymers, certain resin-like copolymer additives and certain rubber-like copolymers for the production of films having improved resistance to ageing.

Abstract: Heat shrinkable thermoplastic compositions are prepared by blending an ethylene copolymer resin with a rubber and dynamically vulcanizing the rubber. The ethylene copolymer resin is a copolymer of ethylene with an alkyl ester of an alpha, beta monoethylenically unsaturated monocarboxylic acid as well as copolymers of ethylene with the acid per se. The preferred copolymer is ethylene-vinyl-acetate copolymer. The preferred rubber is halogenated butyl rubber. Uncured rubber can be included in the composition.

Abstract: Novel, improved binders comprising a combination of heat reactive polymers. The novel binders are especially useful as saturants for fibrous sheet materials to provide high quality shoeboard materials.

Abstract: A composition comprising an intimate admixture of(a) 50 to 98 parts by weight of a vinyl chloride polymer having an inherent viscosity of at least 0.4 and(b) 50 to 2 parts by weight of a random addition tetrapolymer containing the following monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent ______________________________________ Acrylonitrile 15-35 Methyl methacrylate 5-45 Indene 5-45 .alpha.-methylstyrene or 5-45 styrene or a mixture of both ______________________________________where (a) plus (b) total 100 parts by weight, and the total parts by weight of combined indene plus .alpha.-methyl styrene plus styrene in the tetrapolymer (b) is 38-70 parts by weight.

Abstract: A process for producing a thermoplastic elastomer comprising curing a blend of nitrile rubber and a thermoplastic under dynamic curing conditions. The thermoplastic comprises a copolymer of ethylene and an acrylic or methacrylic ester, e.g. ethylene-ethyl acrylate, and the curing agent is a peroxy curing agent. The compositions are cured by mixing at a temperature above the activation temperature of the curing agent and above the melting point of the thermoplastic copolymer.

Abstract: A polymer composition adapted for use in producing polyvinyl halide polymer products comprising a blend of a vinyl halide polymer and a particulate terpolymer having a molecular weight of at least about 100,000 and a glass transition temperature of at least about 50.degree. C. The terpolymer comprises repeating units derived from an olefin, a diester of an addition polymerizable unsaturated dicarboxylic acid, and a solubilizing monomer which promotes compatibility of the terpolymer with the vinyl halide polymer. A shaped plastic article produced from this composition, and method of producing the shaped article are also disclosed.

Abstract: A composition of matter comprising a blend of CPVC having a chlorine content of between about 60% and 66% by weight and a polymethylmethacrylate content of between about 0% and 80% by weight of the blend. The composition of matter displays substantially single, homogeneous phase behavior with the CPVC and polymethylmethacrylate being substantially or completely miscible. Blending of CPVC and polymethylmethacrylate provides a resulting blended polymeric material having enhanced temperature and durability properties. Melt processability of CPVC polymeric material may be enhanced by the inclusion of polymethylmethacrylate to form the blends.

Abstract: Flexible thermoplastic vinyl chloride polymers are prepared by graft or over copolymerizing said polymers with a mixture of certain acrylates and nitriles or by blending said vinyl chloride polymer with a terpolymer of certain acrylates and nitriles.

Abstract: The invention relates to an improved process for the production of polymer powders based on graft polymers and optionally rubber-elastic polymers and vinyl monomer polymers.

Abstract: A process for the production of a pulverulent mixture consisting of(A) from 60 to 99 parts by weight of a brittle copolymer consisting of acrylonitrile and styrene, .alpha.-methylstyrene, methyl methacrylate or mixtures thereof, and(B) from 1 to 40 parts by weight of a flexible rubber-elastic polymer,by coagulating, in a first stage, a latex of (A) or a mixture of a latex of (A) and a part of a latex of (B), adding, in a second stage, the latex of (B) or the remaining part of the latex of (B), so that the desired quantity ratio of (A) to (B) is attained, and, in a third stage, separating the precipitated mixture of (A) and (B) from the aqueous phase, and drying it.

Abstract: Flexible thermoplastic vinyl chloride polymers are prepared by graft or over copolymerizing said polymers with a mixture of certain acrylates and nitriles or by blending said vinyl chloride polymer with a terpolymer of certain acrylates and nitriles.

Abstract: Comb cationic polymers are disclosed which are constituted by amine polymers rendered cationic and water dispersible with the aid of a solubilizing acid. The amine polymers are the product of reaction of: (1) a soluble polymer having an average molecular weight in the range of about 500 to about 10,000 and having a plurality of functional groups reactive with carboxyl or amine functionality (such as epoxy groups as supplied by an epoxidized polybutadiene); with (2) a solution addition copolymer of monoethylenically unsaturated monomers containing copolymerized tertiary amine monomer. The copolymer is terminated with a single carboxy group or a single amino hydrogen atom, and it is free of reactive groups capable of reacting with the functional groups of the soluble polymer, except for the single carboxyl group or the single amino hydrogen atom. The products are particularly useful in cationic electrocoating where they provide improved stability and better Coulombic efficiency.

Abstract: Flexible thermoplastic vinyl chloride polymers are prepared by graft or over copolymerizing said polymers with a mixture of certain acrylates and nitriles or by blending said vinyl chloride polymer with a terpolymer of certain acrylates and nitriles.

Abstract: Disclosed is an impact-resistant polymer composition based on a copolymer of an unsaturated nitrile, a substantially saturated rubber and a chlorinated polyethylene. To maintain high impact resistance while retaining good processing properties, the polymer composition comprises:A. 40-95 parts by weight of at least one copolymer obtained by polymerizing a mixture of:(1) 10-90 weight % of one or more monomers selected from the group consisting of styrene and derivatives thereof, and(2) 90-10 weight % of one or more monomers selected from the group containing of acrylonitrile and methacrylonitrile; andB. 5-60 parts by weight of a mixture comprising:(1) a substantially saturated rubber, and(2) chlorinated polyethylene having a chlorine content of from 32 to 45 weight %, a DSC crystallinity viscosity of at least 1.0, and wherein the weight ratio between rubber and chlorinated polyethylene is from 2:1 to 1:10.

Abstract: Compositions comprising soluble or partly soluble blend of (A) polyglutarimide and (B) styrene-acrylonitrile copolymer, a multiple stage polymer having a styrene-acrylonitrile stage, or mixtures thereof.

Abstract: The invention relates to a polymer composition based on a copolymer of an unsaturated nitrile, a substantially saturated rubber, a chlorinated polyethylene, and a vinylchloride polymer.To improve the impact resistance and the flexural modulus, the polymer composition according to the invention comprises:a. 50-95 parts by weight of:a.1. 5-70 parts by weight of one or more polymers obtained by polymerizing a mixture of:10-90% wt. styrene and/or styrene derivatives,90-10% wt. acrylonitrile and/or methacrylonitrile, and0-20% wt. of one or more other monomers; anda.2. 95-30% vinylchloride polymer; andb. 5-50 parts by weight of:b.1. a substantially saturated rubber, andb.2. chlorinated polyethylene;with the vinylchloride polymer content in the overall polymer composition being at least about 25% by weight.

Abstract: An acrylic adhesive composition comprising an acrylic polymer as a base resin and a modified cyclopentadiene resin having a softening point of at least 60.degree. C. obtained by copolymerizing (a) 85 to 50% by weight of a cyclopentadiene monomer and (b) 15 to 50% by weight of a polar vinyl monomer or a hydrogenation product of said cyclopentadiene resin as a tackifier.

Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) polyfunctional cyanate ester, prepolymer of the cyanate ester, or coprepolymer of the cyanate ester and an amine, and (b) acrylic epoxy esters, methacrylic epoxy esters, prepolymers of acrylic epoxy esters, prepolymers methacrylic epoxy esters, coprepolymers of acrylic epoxy esters and methacrylic epoxy esters and mixtures thereof, and a curable resin composition comprising a mixture or a preliminary reaction product of above component (a), above component (b) and (c) a polyfunctional maleimide, prepolymer of the maleimide or coprepolymer of the maleimide and an amine are disclosed. Cured resin having excellent impact-resistance, adhesive power, heat-resistance and chemical resistance can be prepared from the compositions.

Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) polyfunctional cyanate ester, prepolymer of the cyanate ester, or coprepolymer of the cyanate ester and an amine, (b) acrylic esters, methacrylic esters, prepolymers of acrylic esters, prepolymers methacrylic esters, coprepolymers of acrylic esters and methacrylic esters and mixtures thereof, and (c) a polyfunctional maleimide, prepolymer of the maleimide or coprepolymer of the maleimide and an amine are disclosed. Cured resin having excellent impact-resistance, adhesive power, heat-resistance and chemical-resistance can be prepared from the compositions.

Abstract: Discrete phase thermoplastic polymers comprising crosslinked acrylate or methacrylate, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile components can be extruded to provide products having a high surface gloss by the use of an effective amount of a lubricant selected from the group consisting of high molecular weight polymers of ethylene and high molecular weight copolymers of ethylene and vinyl acetate.