Abstract: A rubber composition comprising a crosslinked blend containing a mixture of from 50 to 95% by weight of an acrylic elastomer and from 5 to 50% by weight of polyethylene is disclosed. The composition has improved resistance to fuel oil, particularly alcohol-added gasoline, as well as cold temperature resistance and heat resistance, and is, therefore, useful as a fuel oil resistant material.

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: High solids containing thermoset resins are made by admixing the adduct of an alkylene oxide and a hydroxyalkyl (meth)acrylate with one or more polymerizable vinyl monomers. A more preferred method is to blend a co-reactive flexibilizing homopolymer or copolymer of the adduct with a rigid vinyl polymer or copolymer to form a thermosettable mixture of polymers. The adduct or polymer-containing adduct is present in amount of from about 5 to about 95% by weight of the monomer or polymer mixture.

Abstract: The present invention relates to coating compositions that include an admixture or blend of at least two solution copolymers that provide combinations of properties which are not possessed by coating compositions that include only one of the copolymers. Each solution copolymer contains at least one aromatic monoethylenic monomer and at least one monoethylenic ester in amounts sufficient to provide a first solution copolymer having a glass transition temperature between about 40 and 70 degrees Centigrade and a second solution copolymer having a glass transition temperature between about -10 and +10 degrees Centigrade. Pigments can be readily wetted and dispersed in the copolymer blend to provide stable pigment concentrates that are useful in the preparation of coating compositions suitable for use on human fingernails.

Abstract: Multilayer coatings having at least one base coating containing pigments and at least one transparent top coating are applied from coating compositions on the substrates and cured together. The coating composition contains:(a) a film-forming synthetic resin;(b) an organic solvent in which the synthetic resin is soluble; and(c) polymer microparticles having polar and/or ionic groups on their surfaces and a diameter of about 0.01 to 5 microns obtained by emulsion polymerization of ethylenically unsaturated monomers, these monomers having a portion comprising 2 or more double bonds per molecule and the microparticles are insoluble in the solution of (a) and (b).The base coat(s) have (d) pigments and the top coats are free of pigments.

Abstract: Polymeric compositions are described which comprise a mixture of(A) at least one oil-soluble polymer which is a homopolymer of a non-aromatic monoolefin or a copolymer of said non-aromatic monoolefin with an aromatic monoolefin, and(B-1) at least one nitrogen-containing ester of a carboxy-containing interpolymer, and/or(B-2) at least one oil-soluble acrylate polymerization product of at least one acrylate ester, or a mixture of one or more of (B-1) and (B-2). The polymeric compositions of the invention also may contain(C) an effective amount of at least one viscosity-reducing liquid organic diluent such as a naphthenic oil or an alkylated aromatic material.

Abstract: Molding compositions based on polyvinyl chloride contain as the component imparting impact resistance homo- and copolymeric acrylic acid esters of oxethylates of phenol or of substituted phenols, wherein the difference of the indices of refraction n.sub.D.sup.20 (at least 20.degree. C., measured with the Na D line) between the basic polymer and the component imparting impact resistance at most is .+-.0.01; optionally copolymers with other acrylic acid esters can also be used in the molding compositions. The latter are inexpensive to manufacture and, besides transparency and weatherability, also have impact resistance.

Abstract: There are disclosed polymers which have nonionic surfactant moieties pendant to the polymeric backbone which exhibit activated sulfur vulcanization, a process for their preparation, and mixtures of polymeric cure activators and elastomers.

Abstract: Highly transparent, impact-resistant molded articles can be produced from a molding composition, comprising: (1) a major portion of polyvinyl chloride or a copolymer comprising at least 70% by weight of vinyl chloride units; and (2) an amount effective to impart impact resistance of: (a) at least one homopolymer of an acrylate monomer having the formula ##STR1## wherein R is a straight-chain or branched alkylene residue of 3-8 carbon atoms, optionally interrupted by 1-2 ether oxygen atoms, wherein the straight-chain portion of said alkylene residue contains at least 3 carbon atoms; or (b) a copolymer of said acrylate monomer and up to 30% by weight of at least one acrylate ester of a C.sub.4-12 aliphatic alcohol.

Abstract: This invention relates to a powder for use in dry sensitization for electroless plating, the powder comprising a plastics base material which is a mixture of hydrophobic and hydrophilic plastics materials to which has been added sensitizing particles.

Abstract: An improved denture adhesive containing an adhesive polymeric fraction consisting essentially of an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic adhydride-type copolymers with either of sodium carboxymethylcellulose or poly(ethylene oxide) homopolymer or both in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: The method of producing a rubber compound having high green strength comprising providing separate rubber components one of which contains a tertiary amine component bound therein and the other of which contains a halogen cross linking agent bound therein, and blending the two rubber components to form a rubber blend having high green strength.

Abstract: Coating compositions comprising a polymer containing repeating units derived from alkyl acrylamidoglycolate alkyl ethers or acrylamidoglycoamide alkyl ethers and reactive functions selected from hydroxy, carboxy and/or amido groups provide crosslinking coating compositions which are low in toxicity and low in evolution of toxic volatile reaction products.

Abstract: A coating composition comprises a hydroxy component having at least two free hydroxyl groups per molecule and an anhydride component which is a polymer-containing cyclic carboxylic acid anhydride groups derived from an olefinically unsaturated cyclic carboxylic acid anhydride, the two components being packaged separately during storage of the composition and being compatible on mixing. At least one of the components is a film-forming polymer. The composition includes a catalytically effective amount of amine groups for accelerating the curing reaction between the hydroxyl groups and the anhydride groups. The amine groups are present in the molecule of the hydroxy component or in a separate amine compound. The hydroxy component is preferably a film-forming acrylic copolymer having pendent hydroxyl and dialkyl-amino-alkyl groups. The composition is particularly useful as a glossy pigmented coating for rigid substrates such as vehicle bodies where hardening of the coating at ambient temperature is required.

Abstract: Coating compositions comprising hydroxy functional film formers and a novel flow control additive comprising a stable crosslinked dispersion prepared by addition polymerization of (a) first and second ethylenically unsaturated monomers each bearing functionality capable of crosslinking with the other and (b) at least one other monoethylenically unsaturated monomer, in the presence of (I) organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer and (II) a novel polymeric dispersion stabilizer.

Abstract: Precrosslinked nitrile rubber polymers are prepared by interpolymerizing a polyol polyacrylate with butadiene and acrylonitrile to improve compression set, extrusion rate and die swell properties of the precrosslinked polymers and blends thereof with linear nitrile rubber polymers without sacrificing other physical and processing properties.

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: Compositions hardenable by exposure to heat or electromagnetic radiation are provided by blending from about 0% to about 50% by weight of an uncrosslinked polymer, from about 20% to about 66% of a polymerizable monomer capable of dissolving said polymer, from about 10% to about 70% of a crosslinked polymer in the form of discrete particles having average diameters of from 0.001 micron to about 500 microns and being swellable by said monomer, and from about 0.25% to about 27% of a crosslinking agent for said monomer. Such compositions exhibit superior chemical and physical characteristics when hardened and are suitable in a wide variety of applications as construction media. In accordance with a preferred form of the invention, a precursor blend is formed from a mixture comprising (A) from 13 to 52 weight percent of a crosslinked polymer of an ester of a C.sub.1 -C.sub.6 alkyl acrylic acid and a C.sub.1 -C.sub.

Abstract: A protective colloid-free plastics dispersion yielding after drying a polymer film which under the influence of moisture has no or little tendency to whitening contains polymer particles having a bimodal size distribution, that is, on the one hand relatively coarse particles and on the other hand relatively fine particles. The polymer component consists of at least 10 weight % of particles having an average diameter of less than 0.2 .mu.m and of 90 weight % at most of particles having an average diameter of more than 0.25 .mu.m, and the ratio of average grain size of coarse to fine polymer is at least 2:1. The plastics dispersion is suitable especially as binder dispersion in plasters and gloss paints.

Abstract: A method of making an acrylic microgel resin which comprises preparing an aqueous microgel emulsion of an acrylic resin which is crosslinked with a multifunctional crosslinking agent, removing water from the emulsion by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotrope with water, and incorporating the thus dehydrated microgel into an acrylic resin which has been prepared by solution polymerization in organic solvent.

Abstract: Polymer blends are provided which are characterized by good processability on conventional extrusion equipment to provide films having excellent adhesion to various substrates while still exhibiting good non-blocking properties during film manufacture, storage, shipment and use. Such blends comprise, based upon the total blend weight, from 5 to about 90 weight percent of a high melt index adhesive resin; from about 5 to about 90 weight percent of a relatively low melt index adhesive resin; and from about 5 to about 70 weight percent of non-adhesive resin having a melt index of from about 3 to about 10.

Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Polymeric soaps prepared from copolymers of hydrophobic monomers and hydrophilic monomers are useful as granulation and/or drying aids for polymeric gels, especially those gels of polyacrylamide.

Abstract: Odontologic compositions suited for use as denture adhesives, the compositions containing a major amount of gum base and a quantity of a hydrophilic polymer to modify the adhesive properties of the gum base together with processes for producing such compositions.

Abstract: A rubbery polymer composition comprises a crosslinked copolymer comprising the following components.Type I15 to 40 wt. parts of a vinyl carboxylate having the formula (I); 60 to 85 wt. parts of an alkoxyalkyl acrylate having the formula (II); 0 to 15 wt. parts of ethylene; (100 wt. parts of a total of said three components); 0 to 5 wt. parts of the components having the formula (III), (IV) or (V):Type II15 to 55 wt. parts of a vinyl carboxylate having the formula (I); 5 to 20 wt. parts of ethylene; an alkyl acrylate having the formula (II'); an alkoxyalkyl acrylate having the formula (II) (100 wt. parts of a total of said four components and more than 0.8 of a ratio of the alkoxyalkyl acrylate (II) to the alkyl acrylate (II') by weight); 0 to 5 wt. parts of the components having the formula (III), (IV) or (V):(I): RCOO--CH.dbd.CH.sub.2wherein R represents a C.sub.1-4 alkyl group.(II): CH.sub.2 .dbd.CHCOO--R.sub.1 --O--R.sub.2wherein R.sub.1 represents a C.sub.1-4 alkylene group; and R.sub.2 represents a C.

Abstract: A graft copolymer is obtained by graft-polymerizing a vinyl or vinylidene monomer onto a rubber trunk polymer which comprises a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with an ethylenic unsaturation, and a conjugated diene and/or an alkyl acrylate. This graft copolymer alone or in a mixture thereof with another thermoplastic resin, because of the presence of the polyalkylene oxide monomer unit incorporated in the rubber trunk polymer, provides a resin composition possessing excellent antistatic property, which, practically, is not lowered by washing.

Abstract: A method of making an acrylic microgel resin which comprises preparing an aqueous microgel emulsion of an acrylic resin which is crosslinked with a multifunctional crosslinking agent, removing water from the emulsion by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotrope with water, and incorporating the thus dehydrated microgel into an acrylic resin which has been prepared by solution polymerization in organic solvent.

Abstract: Improved rubbery compositions comprise vinyl chloride polymers, butadiene-acrylonitrile polymers and butadiene-styrene-tertiary amine polymers. Such compositions may be compounded and vulcanized and the vulcanizates may be used in hoses, rolls and gaskets.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: A powder coating composition for forming multi layer coatings comprising:(1) at least one of finely divided thermosetting addition copolymers having a glass transition temperature of 35.degree. to 75.degree. C. and comprising as comonomers a wt. % of a hardness imparting monomer and b wt. % of a softness imparting monomer based on the copolymer wherein a+b.ltoreq.60, b.ltoreq.a and b.ltoreq.20, and(2) at least one of finely divided thermosetting resinous materials having incompatibility or low compatibility with the copolymer and a substantially greater surface tension than the copolymer when melted at the same temperature and substantially differing from the copolymer in composite parameter.

Abstract: A vulcanizable elastomeric composition comprising(a) from about 89-40%, by weight, based on the total weight of the composition, of an acrylic acid ester, or mixture thereof, having the formula ##STR1## wherein R is an alkyl (C.sub.1 -C.sub.4) radical, --CH.sub.2 CH.sub.2 OR', wherein R' is an alkyl (C.sub.1 -C.sub.4) radical, or --CH.sub.2 CH.sub.2 CN;(b)from about 10-45%, by weight, same basis, of bis(2-methoxyethyl)fumarate, bis(2-methoxyethyl)maleate, or mixtures thereof,(c) from about 1-10%, by weight, same basis, of an unsaturated monomer containing a halogen atom or an epoxy group, and(d) from 0 to 5%, by weight, of polybutadiene, polychloroprene or polyisoprene.

Abstract: A heat-activatable, pressure-sensitive adhesive tape or sheet in which the pressure-sensitive, bonding function arises on heating, which comprises a backing material having thereon a layer of a heat-activatable, pressure-sensitve adhesive having an apparent modulus of elasticity of about 10 to 300 kg/cm.sup.2 at normal temperature, the adhesive comprising a mixture of(a) 100 parts by weight of a copolymer of (i) an alkyl acrylate ester or an alkyl methacrylate ester and (ii) a polymerizable monomer having a functional group, and(b) about 50 to 200 parts by weight of a reactive hot-melt resin that is miscible with the copolymer (a), has a melting point of about 60.degree. C. or higher, and has at least one functional group capable of reacting with the functional group of the copolymer (a), either directly or through a crosslinking agent.

Abstract: A freeflowing rubber mixture which is stable against coalescence and cohesion comprising a vulcanizable rubber in powder form and a minor amount of an acrylonitrile polymer as a separating agent.