Abstract: A process for preparing linear block and three arm star block copolymers having blocks of polyisobutylene and blocks of anionically polymerizable monomers comprises mixing a first solution of a polyisobutylene having a number average molecular weight of from about 4,000 to about 60,000 and having from 1 to 3 terminal allylic halogens with a second solution of a living alkali metal terminated polymer having a number average molecular weight of from about 4,000 to about 60,000 in relative proportions at a temperature of from about 10.degree. C. to about 80.degree. C. for a period of time of from about 30 minutes to about 24 hours whereby a significant amount of linear block or three arm star block copolymer is formed. A polyisobutylene having from 1 to 3 terminal allylic halogens is provided and a process for preparing said polyisobutylene.

Abstract: A radiation sensitive material suitable for the production of radiation sensitive plates for lithographic printing plate manufacture comprises a polymer having appendent azide-substituted aromatic ester groups and sulphonyl urethane groups. The radiation sensitive compound is produced by a process in which some hydroxyl and/or epoxide groups of a polymer are reacted with an azide substituted carboxylic acid or ester forming derivative thereof, and some hydroxyl groups are reacted with a sulphonyl isocyanate.

Abstract: A pressure sensitive adhesive sheet comprising a substrate and an adhesive composition which is coated on the surface of the substrate. The main components of the adhesive composition are (a) a copolymer comprising monomeric units of an acrylic ester, (b) monomeric units of a polar acrylic compound, (c) monomeric units of a high glass transition temperature (Tg) macromonomer having a Tg of 20.degree. C. or above, (d) monomeric units of a low Tg macromonomer having a Tg of below 20.degree. C. and (e) monomeric units of an oligomer having telechelic thiol functional groups. The pressure sensitive adhesive sheet has excellent adhesive strength, resistance against formation of blisters and removability upon heating.

Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.

Abstract: The present invention is directed to a viscosity index improver for lubricating oil compositions comprising the reaction product of A) a copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer grafted with ethylenically monounsaturated carboxylic acid material and B) amido-amine or thioamido-amine comprising the reaction product of a polyamine and alpha, beta-unsaturated compound of the formula ##STR1## wherein X is oxygen or sulfur, Y is OR.sup.4, --SR.sup.4 or ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl.

Abstract: An improved process for the preparation of segmented copolymers of polyolefins and poly(methacrylates) is disclosed.

Abstract: A pigment dispersing agent for paints is constituted with a particular acrylic polymer component having a tertiary amino group and/or a nitrogen-containing heterocyclic ring and a particular polyester component, and has particular number average molecular weight and amine value. This pigment dispersing agent is applicable to both acrylic resin series and polyester resin series paints as well as thermosetting type paints.

Abstract: An adhesive composition comprising a modified, ethylene/.alpha.-olefin copolymer rubber or a modified, ethylene/.alpha.-olefin/non-conjugated diene copolymer rubber containing 0.1-10% by weight of at least one member selected from the group consisting of an acid anhydride and a dicarboxylic acid, and, if necessary, as an amine compound,(i) 0.2-2 moles of a dialkylamine per mole of the acid anhydride in said modified copolymer rubber when said modified copolymer rubber contains no dicarboxylic acid;(ii) 0.2-2 moles of a polyamine compound per mole of the total amount of the acid anhydride and the dicarboxylic acid in said modified copolymer rubber; or(iii) 0.2-2 moles of a dialkylamine per mole of the acid anhydride in said modified copolymer rubber and 0.2-2 moles of a polyamine compound per mole of the acid anhydride in said modified copolymer rubber when said modified copolymer rubber contains no dicarboxylic acid.

Abstract: A process for the emulsion polymerization of graft copolymers comprising the steps of: a) obtaining an unsaturated polymer containing terminal or pendant polymerizable functionalities; b) dissolving the resultant unsaturated polymer in an ethylenically unsaturated monomer in the presence of a surfactant in water to form an aqueous phase; c) microfluidizing the aqueous phase of (b) to a size of less than 0.5 u; and d) subsequently graft polymerizing a monomer with the unsaturated polymer in the microfluidized aqueous phase using free radical polymerization techniques; such that the graft polymerization reaction occurs within each micelle thereby resulting in uniform particles of the predetermined particle size.

Abstract: A process for improving the size distribution of granules formed during synthesis of polyvinyl butyral which involves delaying addition of surfactant to the reaction medium in which the polyvinyl butyral is being formed until after gel break. The surfactant is usually polyacrylic acid or a copolymer of acrylic acid with up to 20 weight percent of one or more copolymerized monomers, in an amount effective to counteract excessive agglomeration of the polyvinyl butyral granules.

Abstract: A novel thermoplastic resin composition excellent in heat resistance, impact resistance, hardness is provided which comprises 100 parts by weight of a composition comprising (A) 5-95% by weight of a polyphenylene ether prepared by oxidation polymerization of at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be identical or different and represent a hydrogen atom, a halogen atom, a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom and (B) 95-5% by weight of a polyamide and 5-100 parts by weight of (C) a copolymer of an ethylene-.alpha.-olefin copolymer rubber with an alkenyl aromatic compound and an unsaturated carboxylic acid or its anhydride. This composition may further contain 0.01-30 parts by weight of an epoxy compound (D) for 100 parts by weight of the composition of (A) and (B).

Abstract: There is provided a process for preparing a laminate, comprising the step of adhering a layer of an olefin polymer and a layer of a fluororesin to each other by fusion with the aid of an adhesive polymer, the adhesive polymer being a polymerization product A prepared by copolymerizing a radical-polymerizable olefin polymer B, which is obtained by reacting an olefin polymer (a) having at least one functional group in one molecule thereof with a radical-polymerizable monomer (b) having a functional group which can react with the functional group contained in the olefin polymer (a), with a monomer (c) which comprises as essential components alkyl acrylate, alkyl methacrylate and/or a fluorine-containing unsaturated monomer and is copolymerizable with the radical-polymerizable olefin polymer B, the polymerization product A comprising from 10 to 90 wt. % of the monomer (c).

Abstract: The present invention is directed to a composition of matter useful as a multifunctional viscosity improver-dispersant for oleaginous compositions, particularly lubricating oil compositions, comprising at least one adduct or reaction product of (A) ethylene copolymer, preferably ethylene propylene copolymer of at least 15,000 number average molecular weight grafted with monounsaturated mono- or dicarboxylic acid material; (B) amido-amine or thioamido-amine comprising reaction product of at least one amine, preferably polyamine, and an alpha, beta-unsaturated compound represented by the formula ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from hydrogen, hydrocarbyl, and substituted hydrocarbyl, and (D) viscosity stabilizing effective amount of C.sub.12 to about C.sub.18 hydrocarbyl substituted dicarboxylic anhydride.

Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a poolyolefin matrix.

Abstract: The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.

Abstract: The pressure-sensitive adhesive sheet of the invention is free from the troubles of forming blisters due to the gas emission from the substrate surface to which the adhesive sheet is applied and bonded by using a unique pressure-sensitive adhesive to form the adhesive layer on a base sheet. The principal ingredient of the pressure-sensitive adhesive used in the present invention is a copolymer having a specified molecular weight and a specified glass transition temperature and composed of (a) from 50 to 85% by weight of a first monomeric moiety of an acrylic ester, e.g., 2-ethylhexyl acrylate, (b) from 1 to 30% by weight of a second monomeric moiety of an acrylic compound having a polar group, e.g., acrylic acid, and (c) from 5 to 40% by weight of a third monomeric moiety of a macromonomer having a polymeric molecular chain of styrene units and/or methyl methacrylate units and having a polymerizable functional group, e.g., methacryloyl group, at the molecular chain end.

Abstract: This invention relates to modified aqueous dispersions of water-insoluble latex polymer prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization, with additional ethylenically unsaturated monomer, including at least one monomer with two or more sites of ethylenic unsaturation, and subsequently polymerizing the additional monomer within the swollen latex particles.

Abstract: The present invention relates to a sequential polymerization process for preparing a water-insoluble dispersion of core/shell particles. In one embodiment the process may be employed to produce a particulate dispersion useful in making water-based coating compositions wherein on drying the particulate dispersion serves as an opacifying agent. In another embodiment the process may be employed to microencapsulate a hydrophobic target material, such as a biocide or herbicide.

Abstract: A binder resin comprises a vinyl copolymer, a mixture of vinyl copolymers, or a mixture of a vinyl copolymer and a vinyl polymer. A resin component with a molecular weight of not more than 10,000 is contained in an amount of from 5 to 50% by weight based on the whole resin. The vinyl copolymer or the mixture of vinyl copolymers has an acid anhydride group and a carboxyl group.

Abstract: This application discloses linear methacrylic ABC triblock polymers in which the composition of each of the three blocks is different and wherein at least one of the blocks is hydrophobic and at least one of the blocks is hydrophilic.

Abstract: A multi-layer container suitable for use in microwave cooking of food comprising a substrate layer of a thermoplastic polymer that is not suitable for contact with foods or hot foods, and an inner protective layer designed to contact the food, said inner layer comprising a blend of a styrene/maleic anhydride copolymer and a polymer selected from the group consisting of polystyrene, rubber modified polystyrene, polymethyl methacrylate, rubber modified polymethyl methacrylate, polypropylene, and mixtures thereof.

Abstract: Polymers comprising anionically polymerized monomers such as butadiene or styrene and adjacent units of (1-methyl-1-alkyl)alkyl esters such as t-butylmethacrylate, as well as selectively hydrogenated derivatives thereof, are heated to at least 180.degree. C. to convert the adjacent ester units to stable anhydride rings.

Abstract: A resin composition comprising (A) a thermoplastic resin, (B) a functional compound having one or more bonds or one or more functional groups selected from the group consisting of organic groups having a non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups and (C) a diamino compound represented by the following general formula:R.sup.I NH--X--NHR.sup.IIwherein R.sup.I and R.sup.II each represents a hydrogen atom or an alkyl group optionally having one or more inactive substituents, and X represents an alkylene group having 7 to 30 carbon atoms and optionally having one or more inactive substituents.

Abstract: A synthetic resin emulsion whose polymer particles are solid core-shell particles in which form pores spontaneously upon drying is produced by the steps of preparing as core particles from 2 to 60 parts by weight of polymer (A) by emulsion polymerization of from 10 to 80 parts by weight of acrylate ester (a.sub.1) having an alkyl group of from 1 to 3 carbon atoms and from 90 to 20 parts by weight another of vinyl-type monomer (a.sub.2) copolymerizable therewith, forming a shell of a polymer (B) on the surface of the core particles of polymer (A) by emulsion polymerization in the presence thereof of from 98 to 40 parts by weight of vinyl-type monomer (b), different from polymer (a.sub.1) and successively hydrolyzing the core portion of the particles with an alkaline material. Organic pigments prepared from the synthetic resin emulsion can improve the hiding power, brightness, gloss and other properties of articles coated therewith.

Abstract: A grafted copolymer containing low cis-polybutadiene having a Mooney viscosity of 30 to 40 as a rubber component, and 30% by volume or more of particles of said rubber component becoming non-spherical rubber particles when molded into a molded article, is suitable for use as a low gloss agent which is usable in the fields of internal and external automotive trims, exterior parts of household electric appliances, etc.

Abstract: Alkali-resistant core-shell polymers having an acid-insoluble core and an acid-soluble shell are prepared by sequential emulsion polymerization of a monomer mixture having acid-ionizable functionality such that the resulting polymer has an acid-insoluble core and an acid-soluble shell. Films from these alkali-resistant, core-shell polymers are resistant to high pH environments where alkali-resistance is required. The alkali-resistant, core-shell polymers are useful in applications such as inks, clear overprint varnishes, coatings, metal adhesion, fiber treatment, paper treatment, cathodic deposition coatings, stain blocking, coagulants and flocculants.

Abstract: A water soluble graft copolymer useful for dewatering wastewater having the structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an .alpha.,.beta. ethylenically unsaturated compound the molar percentage of a:b is from about 95:5 to 5:95 with the proviso that the sum of a and b equals 100%; G comprises the structure: ##STR2## wherein d is a cationic monomer, R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or a lower alkyl group having C.sub.1 to C.sub.3, F is the salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%.

Abstract: Composition of matter useful as a multifunctional viscosity index improver for lubricating oils comprising reaction product of:(i) (a) copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystalliity segment contains not greater, than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M.sub.w /M.sub.n of less than 2 and ratio of M.sub.z /M.sub.w of less than 1.

Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers polyolefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non polar polyolefin trunk, so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.

Abstract: Multi-functional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated functional monomer containing phenothiazine.

Abstract: Thermoplastic elastomer resins are described which comprise vinyl halide grafted to crosslinked acrylic latex particles comprising predominantly acrylate-containing, crosslinked polymer chains derived from(A) at least one acrylate monomer of the formulaCH.sub.2 .dbd.C(R.sub.1)C(O)OR.sub.2 (I)wherein R.sub.1 is hydrogen or methyl; and R.sub.2 is an alkyl group containing from 1 to 29 carbon atoms, an alkoxy alkyl or alkyl thioalkyl group containing from 2 to about 7 carbon atoms, or a cyano alkyl group containing from 2 to about 7 carbon atoms; and(B) at least one alpha, beta-unsaturated dicarboxylic acid, provided that the dicarboxylic acid repeating units are optional when the TPE resin contains less than about 35% by weight of vinyl halide.

Abstract: In a process for the peroxide-free grafting of ethylenically unsaturated carboxylic acids, carboxylic anhydrides and/or their derivatives to a homopolymer or copolymer of ethylene having a density equal to or greater than 0.930 g/cm.sup.3, the monomers to be grafted are used in a concentration of from 0.01 to 0.5% by weight and the grafting reaction is carried out at from 210.degree. to 300.degree. C. in a conventional extruder or mixer in the absence of a free radical initiator. The graft copolymers are used for the preparation of ionomers and adhesion promoters.

Abstract: This invention relates to poly(vinyl chloride) injection molding compositions which contain novel additive polymers which modify the rheology characteristics of the composition, and to the novel additive polymers themselves.

Abstract: An AB-type block copolymer represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrocarbon group having 1 to 10 carbon atoms; R.sup.2 represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; R.sup.3 represents a benzyl group, ##STR2## wherein R.sup.4 represents an alkyl group having 1 to 10 carbon atoms, or an alkyl group having 1 to 18 carbon atoms; M represents a group represented by the formula (M.sup.2).sub.m --(M.sup.1).sub.n or (M.sup.1).sub.m --(M.sup.2).sub.n, each of m and n being a natural number of 20 to 5000; is prepared by a process of first polymerizing either a monomer for forming the M.sup.1 block or a monomer for forming the M.sup.2 block in the presence of a sulfur-containing compound having formula (XIII): ##STR3## wherein R.sup.1, R.sup.2 and R.sup.

Abstract: A hydrogenated diene block copolymer having a polystyrene-reduced number-average molecular weight of 50,000-600,000 which is a hydrogenation product of an (A)--(B) block copolymer in which (A) means an alkenyl aromatic compound polymer block and (B) means a conjugated diene homopolymer block wherein the vinyl content of the conjugated diene portion is more than 60%, or an alkenyl aromatic compound-conjugated diene random copolymer block wherein the vinyl content of the conjugated diene portion is 15% or more, an (A)--(B)--(C) block copolymer in which (A) and (B) are as defined above and (C) means an alkenyl aromatic compound-conjugated diene copolymer tapered block wherein the proportion of the alkenyl aromatic compound increases gradually, or an (A)--(B)--(A) block copolymer in which (A) and (B) are as defined above, in which block copolymer(1) the weight proportion of theh alkenyl aromatic compound/the conjugated diene is 5/95 to 60/40, and(2) the content of the bound alkenyl aromatic compound in at least o

Abstract: In a process for the peroxide-free grafting of ethylenically unsaturated carboxylic acids, carboxylic anhydrides and/or their derivatives to a homopolymer or copolymer of ethylene having a density less than 0.930 g/cm.sup.3, the monomers to be grafted are used in a concentration of from 0.01 to 0.5% by weight and the grafting reaction is carried out at from 210.degree. to 300.degree. C. in a conventional extruder or mixer in the absence of a free radical initiator. The graft copolymers are used for the preparation of ionomers and adhesion promoters.

Abstract: A modified polymer rubber is obtained by(1) graft-polymerizing at least one grafting monomer to a shreaded rubbery polymer (A) in an aqueous suspension at a temperature of 30.degree.-130.degree. C. to obtain a graft polymer, and(2) kneading the graft polymer with at least one polymerizable monomer in the presence of a free radical initiator at a temperature of 180.degree.-280.degree. C. This process does not cause gel formation and is advantageous in manufacturing cost.The modified polymer rubber thus obtained is excellent in processability and storage stability, and highly useful as a compatibilizer for various resins.

Abstract: Polymer particles prepared by polymerizing polymerizable monomers by seed polymerization, with far more excellent polymerization stability than conventional seed polymerization processes, in the presence of a polymer emulsion comprising low molecular weight polymer particles, radically polymerizable in an aqueous system. The polymer particles are present in an amount of 0.5-30 parts by weight (on solid basis) per 100 parts by weight of polymerizable monomers, have a weight average molecular weight of 500-10,000 and are prepared by emulsion polymerization or soap-free polymerization. The seed polymerization is carried out by initially charging less than 30% by weight of said polymerizable monomers to the polymerization mixture, and after the polymerization conditions are established, by continuously or intermittently adding the remaining portion of said polymerizable monomers to the reaction system.

Abstract: A modified block copolymer composition comprising a thermoplastic polymer and a modified block copolymer consisting essentially of a base block copolymer of a monovinyl substituted aromatic hydrocarbon polymer block and an olefin compound polymer block having an ethylenic unsaturation degree not exceeding 20%, the base block copolymer having a molecular unit containing a carboxylic acid group and/or a group derived therefrom grafted thereto. The modified block copolymer composition of the present invention is a resinous composition excellent in impact resistance, adhesion, paint adhesion, weatherability, resistance to thermal deterioration, transparency and gloss or a rubbery or leather-like composition excellent in heat resistance, adrasion resistance, compression set resistance, adhesion, transparency, oil resistance, weatherability and resistance to heat aging.

Abstract: A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a).A primer composition is also described.

Abstract: The invention relates to graft-modified linear polyethylene with low density (<940 kg/dm.sup.3) (LLDPE), and in particular with very low density (density <915 kg/dm.sup.3) (VLDPE), grafted particularly with styrene/maleic anhydride.These polyethylenes are very good impact modifiers with a high UV resistance and a high degree of toughness and do not cause discoloration of the polyamides and polyesters modified with them. They can be prepared in a simple and economically efficient manner with a high degree of conversion.These polyethylenes are also highly suited as impact modifiers, adhesives or adhesive layers, heat-seal layers, bonding layers in composite films, compatibility enhancement agents as well as bonding promotors, or as components of such agents or layers.Graft-modified polyethylene can be prepared by converting a linear low-density polyethylene with the grafting material at at temperature higher than 110.degree. C.

Abstract: A primer composition has an excellent bonding ability to materials such as polyethylene, polypropylene and synthetic rubbers and is easily bonded to functional coatings. A composite layer of a coating and the primer composition having a function of addition is formed on the surface of these materials by coating or the like. A primer composition is employed which is suitable for such uses wherein a polymer of an unsaturated dicarboxylic acid and a polyolefin or a chlorine denaturated product thereof is used as a main component and a chlorosulfonated polyethylene is applied to improve heat resistance.

Abstract: A random copolymer characterized in that (A) the copolymer comprises polymerized units from ethylene and polymerized units from at least one cycloolefin, (B) the mole ratio of the polymerized units from the cycloolefin to the polymerized units from ethylene is from 3:97 to 60:40, (C) the cycloolefin is incorporated in the polymer chain without ring opening, (D) the copolymer has an intrinsic viscosity of 0.01 to 20 dl/g, (E) the copolymer has a molecular weight distribution (Mw/Mn) of not more than 4, and (F) the copolymer has a crystallinity of 0 to 10%. The random copolymer may be grafted by (a) alpha, beta-unsaturated carboxylic acids and/or their derivatives, (b) styrenes, (c) organic silicon compounds having an olefinically unsaturated bond and a hydrolyzable group, or (d) unsaturated epoxy monomers.

Abstract: There is here provided a thermoplastic resin composition which comprises (I) 50 to 99% by weight of a polyamide resin, and (II) 50 to 1% by weight of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of at least one ethylene copolymer selected from the group consisting of epoxy group-containing ethylene copolymers, ethylene-unsaturated carboxylic acids, alkyl ester copolymers and metallic salts of the ethylene-unsaturated carboxylic acids, and ethylene-vinyl ester copolymers, and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one vinyl monomer, either of both the components possessing a dispersion phase where each particle has a diameter of 0.001 to 10 .mu.m. A method for preparing the above-mentioned thermoplastic resin composition is also provided here.

Abstract: Thermoplastic elastomer resins are described which comprise vinyl halide grafted to crosslinked acrylic latex particles comprising predominantly acrylate-containing, crosslinked polymer chains derived from(A) at least one acrylate monomer of the formulaCH.sub.2 .dbd.C(R.sub.1)C(O)OR.sub.2 (I)wherein R.sub.1 is hydrogen or methyl; and R.sub.2 is an alkyl group containing from 1 to 20 carbon atoms, an alkoxy alkyl or alkyl thioalkyl group containing from 2 to about 7 carbon atoms, or a cyano alkyl group containing from 2 to about 7 carbon atoms; and(B) at least one alpha, beta-unsaturated dicarboxylic acid, provided that the dicarboxylic acid repeating units are optional when the TPE resin contains less than about 35% by weight of vinyl halide.

Abstract: A graft copolymer having a polyolefinic main chain with muconic acid groups pendant therefrom. The acid groups are bonded to the backbone of the polyolefin by free radical addition across a muconic acid double bond. Preferably, the copolymer is prepared via a reactive extrusion process. The copolymer's applications include use as a reactive compatibilizer for polymer blends. The preferred polyolefin is polypropylene.

Abstract: A concentrate comprising a carrier polymer and at least 30%, by weight of the carrier polymer, of at least one modifying agent for a thermoplastic polymer is disclosed. The carrier polymer is a polymer of alpha-olefins having a heat of crystallization of less than 70 J/g and, if the copolymer is an ethylene/vinyl acetate copolymer, containing at least 18% by weight of vinyl acetate comonomer. The modifying agent is absorbed into the carrier polymer. In embodiments, the modifying agent is a polymerizable monomer. The concentrates provide a versatile method of addition of modifying agents into thermoplastic polymers.

Abstract: Blends of polymers of vinyl acetate and polymers derived from acrylic acid have been discovered which exhibit thermodynamic miscibility. These polymer blends exhibit excellent mechanical compatibility, provide enhanced toughness and strength superior to the sum of the weight averaged properties of the constituent polymers and are useful in molding structures such as films and in compounded formulations such as coatings, emulsions and adhesives.

Abstract: A vibration-proof damping polymer material characterized in that the material is prepared from a polymer substance obtained by dissolving an amorphous fluorine-containing polymer in an acrylic monomer and polymerizing the monomer with or without permitting the resulting polymer to form an interpenetrating polymer network, and a vibration-proof damping polymer material characterized in that the material is prepared from a blend of (a) and (b), (a) being an amorphous fluorine-containing polymer or crystalline polymer containing vinylidene fluoride, and (b) being an acrylic polymer.

Abstract: Disclosed is a methacrylic resin cast plate which is comprised of 100 parts by weight of [I] polymethyl methacrylate or a methyl methacrylate copolymer containing at least 90% by weight of methyl methacrylate units and, dispersed therein, a graft copolymer [IV] obtained by graft-polymerizing a hard resin component [III] containing at least 90% by weight of methyl methacrylate units onto a crosslinked rubbery copolymer [II] containing at least 45% by weight of butyl acrylate units and having an average particle diameter of 0.1 to 1 .mu.m, the amount of the graft copolymer [IV] being 2 to 30 parts by weight as the amount of the crosslinked rubbery copolymer.