Abstract: This invention relates to reactive polymers, e.g., aqueous emulsion polymers, having pendant flexible or dangling side chains prepared from ethylenically unsaturated carbodiimides, e.g., carbodiimide (meth)acrylates. The reactive polymers contain ethylenic unsaturation near the surface or in the surface area of the particles that form the polymers, the ethylenic unsaturation being connected to the polymer through the pendant flexible or dangling side chains. This invention also relates to the process for preparing the reactive polymers, to crosslinkable formulations based on the reactive polymers, and to thermoplastic and crosslinked films prepared from the reactive polymers. The reactive polymers are useful as decorative and functional coatings, inks, adhesives, textile coatings and sealants.

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Abstract: Adhesive blends especially suitable for adhesion to one or more polypropylene substrates consisting essentially of a mixture of a modified impact copolymer and a graft reaction product of a propylene polymer and a carboxylic acid or derivative thereof are disclosed. Composite structures incorporating such blends are also disclosed.

Abstract: Abstract of the disclosure: A particulate graft copolymer comprises 30 to 90% by weight of at least one elastomeric grafting base A having a weight average particle size of from 30 to 1,000 nm comprising, based on A, 85 to 99.8% by weight of at least one alkyl acrylate A11 having 1 to 8 carbon atoms in the alkyl radical, 0.1 to 5% by weight of at least one polyfunctional, crosslinking monomer A12, and 0.1 to 10% by weight of at least one hydroxyalkyl acrylate or hydroxyalkyl methacrylate A13 or at least 50% by weight of one or more dienes A111, up to 50% by weight of one or more ethylenically unsaturated monomers A112, and 0.1 to 10% by weight of at least one hydroxyalkyl acrylate or hydroxyalkyl methacrylate A113 and10 to 70% by weight of a graft sheath B comprising, based on B, up to 99.9% by weight of at least one aromatic vinyl monomer B1, up to 99.9% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer B2, and 0.

Abstract: Oil-soluble polymer improving the viscosity index of lubricating oils, endowed with dispersant properties and capable of lowering the pour point ("pour point depressant"), obtained by means of a first step of reaction between a polyolefinic copolymer and a mixture of C.sub.8 -C.sub.25 alcohol (meth)acrylates and (meth)acrylic acid and a second step of condensation of the so modified copolymer with a polyamine.

Abstract: 1. A water-absorptive contact lens obtained by saponification of a copolymer composed essentially of:(A) from 1 to 30% by weight of a (meth)acrylate polymer having at least one polymerizable group per molecule on an average obtained by copolymerizing (a) an alkyl (meth)acrylate and (b) a monomer having at least two polymerizable groups per molecule, as the main components;(B) from 1 to 10% by weight of a vinyl monomer selected from the group consisting of maleic acid esters and N-vinyl lactams;(C) from 50 to 98% by weight of a fatty acid vinyl ester; and(D) from 0.02 to 10% by weight of a cross linking monomer.

Abstract: The present invention relates to a process for preparing a partially crosslinked binder resin useful for electrophotographic toner, which comprises:(1) preparing a partially crosslinked polymer by way of: a non-crosslinking emulsion polymerization of an aromatic vinyl monomer, an acrylic monomer and a cyanide compound in a linear structure, and a cross-linking polymerization of an aromatic vinyl monomer, an acrylic monomer, a cyanide compound and an unsaturated carboxylic acid or an unsaturated monomer containing an epoxy group; and(2) coagulating the polymer latex obtained in step(1) in the presence of a water soluble amine.

Abstract: The subject invention pertains to a water-swellable polymer comprising the polymerization product of an .alpha.,.beta.-ethylenically unsaturated monomer in an aqueous phase, initiator, crosslinking agent, and polyvinyl alcohol, the polymerization product having been heated at a temperature greater than about 160.degree. C., wherein the polyvinyl alcohol is less than about 98 percent hydrolyzed, such that the polymerization product has improved whiteness.

Abstract: A catalyst-free single-component coating agent containing (A) one or more compounds acting as cross-linking agents and with on average at least two CH-azide hydrogen atoms, (B) one or more (meth)acrylate copolymers, polyester resins and/or polyurethane resins capable of Michael addition, with .alpha., .beta.-unsaturated groups bonded via carbonyl, carboxyl and/or carboxylic amide groups, a C.dbd.C equivalent weight of 85-1800 and a weight average molecular weight of 170-50000. The equivalent ratio of A to B is 2:1 to 1:2. The coating agent contains solvents and conventional lacquer additives, and optionally contains water, pigments and/or fillers. It results in particularly acid-resistant coatings and is particularly suitable for producing covering lacquer and clear lacquer coatings in the motor-vehicle sector.

Abstract: An improved aqueous slurry process (with co-solvent) for the preparation of segmented copolymers of polyolefins and poly((meth)acrylates) is disclosed.

Abstract: Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.

Abstract: A derivatized graft copolymer composition comprising an ethylene alpha-monoolefin copolymer comprising about 15 to about 80 mole % ethylene, about 20 to about 85 mole % of at least one (C.sub.3 -C.sub.10) alpha-monoolefin and, optionally, 0 to about 15 mole % of a polyene selected from non-conjugated dienes and trienes and having an average molecular weight ranging from about 5,000 to about 500,000; grafted with at least one ethylenically unsaturated carboxylic acid material; and derivatized with an amino-aromatic compound.

Abstract: A multi-shell emulsion particle of dry state structure having one or more of penetrating pore(s) connecting the surface layer of the particle with the interior of the particle and having a particle diameter of from 0.1 to 5.0.mu. preferably from 0.1 to 1.2.mu..

Abstract: A rubber composition permits good adhesion upon crosslinking to fiber materials and offers good adhesion after thermal aging. The rubber composition includes about 1/10 to about 1/1000 mol of an organic peroxide and either about 0.5 or about 10 parts by weight of an organic compound having two or more acrylate groups or methacrylate groups and one or more carboxyl groups in the molecular structure or about 1 to about 30 parts by weight of a carboxy-modified rubber per 100 parts by weight of a rubber crosslinkable with the organic peroxide.

Abstract: Particulates of a superabsorbent polymer, e.g., an acrylic polymer such as polyacrylic acid, well suited for a variety of hygienic applications, are prepared by (i) suspending an aqueous solution of a water-soluble monomer charge I in a hydrocarbon medium by means of a polymerizable surfactant having the general formula:R.sub.1 --O--(CH.sub.2 --CH.sub.2 --O).sub.n --R.sub.2wherein R.sub.1 is a hydrocarbon having at least 9 carbon atoms, R.sub.2 is an acryloyl, methacryloyl or maleoyl radical, and the degree of condensation n in respect of the ethylene oxide ranges from 30 to 70, (ii) polymerizing the suspension thus formed, producing a suspension of polymer gel particles and converting the surfactant to effectively remove same from the medium of polymerization, (iii) next absorbing a second monomer charge II into such gel particles, and (iv) polymerizing in the gel particles the second monomer charge II.

Abstract: A process for improving the color of selectively hydrogenated block copolymers modified with acid compound or derivatives thereof which comprises:(a) anionically polymerizing at least one conjugated diene, and, optionally, at least one vinyl aromatic hydrocarbon, to produce a block copolymer,(b) selectively hydrogenating the block copolymer,(c) subjecting the block copolymer to an acid wash,(d) subjecting the acid washed block copolymer to high efficiency water washing at a residence time of not less than 50 minutes and a water to polymer cement weight ratio of more than 0.2, and(e) grafting an acid compound or a derivative thereof onto the block copolymer.

Abstract: Redispersible polymer powders made by core-shell polymers having an alkali-soluble emulsion polymer shell and an aqueous-insoluble emulsion polymer core wherein the core and the shell polymers are chemically grafted by utilizing a polyfunctional compound. The core-shell polymers are produced by a two-stage sequential emulsion polymerization process in which an alkali-insoluble emulsion polymer core is polymerized in the presence of an alkali-solubilized emulsion polymer. When the core-shell polymer powders of this invention are employed as a cement modifier, improvements in the powder physical properties and cement mortar properties are realized.

Abstract: Graft copolymers are disclosed which comprise an olefin borane-containing homopolymer or copolymer backbone polymer having radically polymerized polymeric segments chemically bonded as side chains or as a chain end. A borane-containing diene homopolymer or a copolymer of a diene and/or at least one alpha-olefin having from about 2 to 22 carbon atoms copolymerized with another monomer containing organoborane functional groups can be used as a backbone polymer to prepare the graft copolymers of the present invention. Under oxidation conditions, the borane group becomes the reaction site for the radical polymerization and copolymerization. Radical polymerizable monomers, such as methyl methacrylate, styrene, alpha-methylstyrene, acrylonitrile and the like, can be polymerized to yield high molecular weight graft copolymer. By this synthetic route, high graft efficiency is observed with only a very low concentration of homopolymer being produced.

Abstract: A biocompatible moldable curable polymer/monomer system capable of curing at ambient temperatures to provide an elastomer product while producing a lower exotherm than previously used systems. The system includes an alkyl acrylate or methacrylate homopolymer or copolymer; a monomer mixture of higher alkylacrylate or methacrylate combined with one or more of acrylic acid, methacrylic acid and their lower alkyl esters; and a plasticizer and optionally cross-linking agents, anti-tack agents, and activators or photoinitiators. The moldable systems is a dough used for making earmoulds and earpieces or in fabrication of prostheses.

Abstract: Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

Abstract: Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.

Abstract: A vinyl polymer is obtainable by polymerizing vinyl monomers in at least two stages by a procedure in which, in a first stage, from 5 to 95% by weight of vinyl monomers are polymerized in an organic solvent or in the absence of a solvent and, in the second stage, from 5 to 95% by weight of the vinyl monomers are polymerized in the presence of the vinyl polymer obtained in the first stage, likewise in an organic solvent or in the absence of a solvent, with the proviso that the polymerization in the second stage is carried out under conditions under which an average molecular weight M.sub.n, which is at least 1,000 higher compared with that of the vinyl polymer, the first stage of results for the vinyl monomers of the second stage in the absence of the vinyl polymer obtained in the first stage.

Abstract: A method of dewatering paint spray booth sludge by adding to the water system of a paint spray booth a water soluble graft copolymer having the structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an, 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: The present invention provides a continuous process for producing an adducted derivatized EPM or EPDM oil solution in which a grafted ethylene polymer is adducted with an antioxidant diamine for formation of an adduct during holding.

Abstract: A syndiotactic graft copolymer is here disclosed in which a radical polymerizable unsaturated compound is grafted on a propylene homopolymer or copolymer, and this graft copolymer is obtained by heating a homopolymer having a substantially syndiotactic structure of propylene or a copolymer having a substantially syndiotactic structure of propylene and another .alpha.-olefin and a radical polymerizable unsaturated compound such as an unsaturated carboxylic acid or an unsaturated silane in the presence of a radical initiator up to the decomposition temperature or more of the radical initiator. This kind of graft copolymer can be used as a composition for adhesion. The graft copolymer in which the radical polymerizable unsaturated compound is a hydrolyzable unsaturated silane can be converted into a crosslinked polymer by heating in the presence of water, and it can also be converted into a water-crosslinkable resin composition by adding various additive thereto.

Abstract: A water soluble graft copolymer useful as retention and drainage aids in papermaking processes 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: An improved aqueous slurry process (with co-solvent) for the preparation of segmented copolymers of polyolefins and poly((meth)acrylates) is disclosed.

Abstract: Clusters of water-swellable polymer particles, having high rates of absorbency without gel-blocking are prepared by suspending water-swellable polymer particles in an inert hydrophobic liquid, such as hydrocarbon, and slowly adding to the particles a suspension of an aqueous solution optionally containing an .alpha.,.beta.-ethylenically unsaturated monomer in an inert hydrophobic liquid.

Abstract: A syndiotactic graft copolymer is here disclosed in which a radical polymerizable unsaturated compound is grafted on a propylene homopolymer or copolymer, and this graft copolymer is obtained by heating a homopolymer having a substantially syndiotactic structure of propylene or a copolymer having a substantially syndiotactic structure of propylene and another .alpha.-olefin and a radical polymerizable unsaturated compound such as an unsaturated carboxylic acid or an unsaturated silane in the presence of a radical initiator up to the decomposition temperature or more of the radical initiator. This kind of graft copolymer can be used as a composition for adhesion. The graft copolymer in which the radical polymerizable unsaturated compound is a hydrolyzable unsaturated silane can be converted into a crosslinked polymer by heating in the presence of water, and it can also be converted into a water-crosslinkable resin composition by adding various additive thereto.

Abstract: A particulate graft polymer A ofA1: a grafting base based on a polydiene rubber A1 of, based on A1,A11: 70 to 100% by weight of a polymerizable diene, andA12: up to 30% by weight of a copolymerizable, ethylenically unsaturated monomer having a first graft sheath A2 of, based on A2,A21: 75 to 99.8% of at least one C.sub.1 -C.sub.8 alkyl acrylate A21,A22: 0.1 to 5% by weight of at least one polyfunctional, crosslinking monomer A22,A23: 0.1 to 20% by weight of at least one monomer A23 containing one or more acidic or basic groups, and a second graft sheath A3 comprising, based on A3,A31: 40 to 89.9% by weight of at least one aromatic vinyl monomer A31,A32: 10 to 49.9% by weight of at least one polar, ethylenically unsaturated monomer A32,A33: 0.1 to 20% by weight of at least one monomer A33 containing one or more basic or acidic groups, andA34: up to 5% by weight of at least one polyfunctional, crosslinking monomer A34,A23 and A33 in each case being different groups.

Abstract: This invention relates to reactive polymers, e.g., aqueous emulsion polymers, having pendant flexible or dangling side chains prepared from ethylenically unsaturated carbodiimides, e.g., carbodiimide (meth)acrylates. The reactive polymers contain ethylenic unsaturation near the surface or in the surface area of the particles that form the polymers, the ethylenic unsaturation being connected to the polymer through the pendant flexible or dangling side chains. This invention also relates to the process for preparing the reactive polymers, to crosslinkable formulations based on the reactive polymers, and to thermoplastic and crosslinked films prepared from the reactive polymers. The reactive polymers are useful as decorative and functional coatings, inks, adhesives, textile coatings and sealants.

Abstract: The present invention relates to novel preformed silicone-containing acrylic copolymers including silicone-containing acrylic star polymers, graft copolymers and macromonomers. Described are linear diblock macromomomers, graft copolymers and star polymers comprising a substantially hydrophilic block or block and a substantially hydrophobic, permeable block or block, said hydrophilic block preferably comprising at least about 25% by weight of a hydrophilic acrylic-type monomer and said hydrophobic, permeable block comprising at least about 50% by weight of at least one or more polysiloxanylalkylesters of an alpha, beta unsaturated acid.

Abstract: An aqueous dispersion or solution of a polymer obtained by free radical polymerization and comprising from 0.01 to 10% by weight of carboxyl groups --CO.sub.2 H or sulfo groups --SO.sub.3 H contains, as a crosslinking agent, a compound having at least two vinyl ether groups.

Abstract: Particulate graft copolymers for matt thermoplastic molding materials contain a base and a graft sheath. The base contains 75 to 99.8% of at least one alkyl acrylate, from 0.1 to 5% of at least one polyfunctional, crosslinking monomer having at least two ethylenic double bonds which are not conjugated in the 1,3-position, and from 0.1 to 20% of at least one ethylenically unsaturated monomer having one or more acidic groups. Alternatively, the base may contain at least 50% of one or more dienes, up to 50% of at least one further ethylenically unsaturated monomer, and up to 15% of at least one ethylenically unsaturated monomer having one or more acidic groups. The sheath contains from 0 to 99.8% of at least one aromatic vinyl monomer, from 0 to 99.8% of at least one polar, copolymerizable, ethylenically unsaturated monomer, from 0.1 to 20% of at least one ethylenically unsaturated monomer having one or more basic groups, and from 0.1 to 10% of at least one hydroxyalkyl (meth)acrylate.

Abstract: Highly functional grafted polymeric products of a predominantly propylene polymeric composition containing a thermoplastic ethylene-propylene copolymer and a carboxylic acid or derivative grafting monomer and having a desirably low melt flow rate, adhesive blends containing such grafted polymeric products, and composite structures incorporating the adhesive blends are provided. The grafted polymeric product may be prepared by melt grafting in the presence of a free radical generating catalyst and the substantial absence of solvent under shear and at a temperature selected to minimize or avoid premature decomposition of the catalyst and vaporization losses of the catalyst and monomer.

Abstract: Resin compositions of improved dispersibility and mechanical properties are obtained by polymerizing a polymerizable compound (A), insitu in a melted thermoplastic resin (B), in the presence of a dispersant (C) reactive or compatible with at least one of the resin (B) and polymerizate of (A).Suitable dispersants include those represented by the general formula (1) or (2)R.sub.1 --L(X--M--X--L).sub.n X--M--R.sub.2 (1)R.sub.1 --L(X--M--X--L).sub.n --R.sub.2 (2)wherein R.sub.1 and R.sub.2 are groups, such as hydrocarbyl acyl, alkoxy, hydroxyl, mercapto, amino, epoxy, isocyanate, carboxylic, carboxylic anhydride, carboxylic halide and aldehyde groups; L and M are residues of a polymer having a number average molecular weight of about 500-about 3,000,000, the difference in solubility parameter between the residue L or M and the resin (B) or polymerizate of (A) being not more than 0.

Abstract: A polymer dispersion of a star polymer dispersed in an organic liquid; wherein the star polymer has a crosslinked core having attached thereto at least three macrononomer arms; where(1) the core is formed of monomers having at least two ethylenically unsaturated double bonds which are crosslinked with each other and the core has at least 3 free radical polymerizable sites each of which are reacted with the macromonomer; and(2) the macromonomer that forms the arms of the star polymer is formed of ethylenically unsaturated monomers that have been polymerized by free radical polymerization in the presence of a free radical polymerization initiator and a catalytic chain transfer agent containing CO.sup.+2 to provide the macromonomer with a terminal ethylenically unsaturated group that is polymerized with the free radical polymerizable site on the core to form the star polymer. The process for making the star polymer and coating compositions that utilize the star polymer are also part of this invention.

Abstract: An unsaturated polyester resin composition for the production of cured molded article which comprises:an unsaturated polyester resin; anda core-shell polymer as a low shrinking agent which comprises:(a) a cross-linked core layer polymerized from a first monomer comprising an aromatic vinyl monomer in an amount of not less 50% by weight, the core layer being contained in the core-shell polymer in an amount of 50-90% by weight; and(b) a shell layer polymerized from a monomer comprising methyl methacrylate in an amount of not less 50% by weight;and the core-shell polymer having a refractive index in the range of 1.52-1.58 and within .+-.0.02 from the refractive index of the cured material of the unsaturated polyester resin.

Abstract: A process for preparation of latex of a hollow polymer which comprises adding a base, in the presence of a monomer, to latex containing carboxy-modified copolymer particles to make the pH of the latex 8 or more; adding a carboxyl group-containing monomer to make the pH of the latex 7 or less; and then polymerizing these monomers.

Abstract: Multifunctional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated reactive monomer and thereafter reacted with amines containing sulfonamide units.

Abstract: Improved poly(vinyl chloride) compositions which exhibit improved adhesivity to improved polyamide compositions which find particular utility in the construction of multi-layer structures, particularly for the fabrication of structures for use in forming electrical insulation structures for wires and cables. In one useful embodiment, the multi-layer structure has in the following order: a layer of PVC and a layer of polyamide in contact with the layer of PVC wherein the layer of PVC includes a vinyl chloride containing copolymer or a terpolymer which exhibits good solubility with the PVC, and which further provides good adhesivity with the polyamide. The polyamide layer comprises an effective amount of an ethylene-bis-tetrabromophthalimide which acts as a fire retardant; the multi-layer structure exhibits good interfacial adhesion and excellent fire retardant characteristics.

Abstract: Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved low temperature viscometric properties containing a viscosity index improving amount of a V.I.-dispersant comprised of the reaction products of:(a) an oil soluble ethylene copolymer comprising from about 15 to 90 wt. % ethylene and from about 10 to 85 wt. % of at least one C.sub.3 to C.sub.28 alpha-olefin, having a number average molecular weight of from about 5,000 to 500,000, grafted with an ethylenically unsaturated carboxylic acid material having 1 or 2 acid or anhydride moieties;(b) an organic polyamine having at least two primary amino groups or a polyol; and(c) an amount effective to provide a V.I. improver-dispersant exhibiting improved low temperature viscometric properties of high functionality long chain hydrocarbyl substituted dicarboxylic acid material having a functionality of at least 1.2.

Abstract: A graft polymer based on an ultrahigh molecular weight polyethylene having a molecular weight of at least 1,000,000 g/mol and an alkenecarboxylic acid or alkenecarboxylic anhydride as the graft monomer; the polymer has modified and improved properties compared with ultrahigh molecular weight polyethylene. The preparation and use thereof are also described.

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Abstract: A solid state process for modifying polyvinyl alcohol using a Michael-type addition wherein dry polyvinyl alcohol powder is sprayed with a solution of a monomer capable of Michael-type addition in an amount sufficient to swell the polyvinyl alcohol or maintain its swollen state, but not dissolve or form a slurry of the polyvinyl alcohol. The swollen polyvinyl alcohol is sprayed with a catalyst and the temperature is raised to initiate the reaction between the polyvinyl alcohol and the monomer.

Abstract: Composition of matter useful as multifunctional viscosity index improver for lubricating oil comprising reaction product of: (i) (a) molecular weight degraded ethylene-alpha-olefin copolymer obtained by degrading 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 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 a ratio of M.sub.z /M.sub.w of less than 1.8, and said degraded copolymer grafted with (b) ethylenically monounsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or anhydride group to form grafted ethylene copolymer; (ii) about C.sub.50 to about C.sub.

Abstract: Disclosed are fibers comprising a graft copolymer consisting of a propylene polymer material backbone having graft polymerized thereto an ethylenically unsaturated monomer(s) or a blend of at least two of said graft copolymers.

Abstract: Substantially linear ethylene polymers, e.g., polyethylenes prepared by constrained geometry catalysis (substantially linear ethylene), which are grafted with one or more unsaturated organic compounds containing both ethylenic unsaturation and a carbonyl group, e.g., maleic anhydride, exhibit desirable adhesive properties. These graft-modified substantially linear ethylene polymers also impart desirable compatibility and impact properties to various thermoplastic polymer blends.

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. Said hydrogenated diene block copolymer is useful as a modifier for polar resins, non-polar resins or both of them.

Abstract: A process for making a graft propylene copolymer in which a propylene polymer, selected from the group consisting of propylene homopolymers and propylene copolymers, is contacted with a polymerizable, unsaturated carboxylic acid or acid derivative in the presence of a coagent, having the structural formula (CH.sub.2 .dbd.CR.sup.1 CR.sup.2 R.sup.3.sub.x R, where R.sup.1, R.sup.2 and R.sup.3 are the same or different and are hydrogen, hydrocarbyl, halogen or a heterocyclic radical; x is an integer of 2 to 4; and R is a radical containing at least one atom of oxygen, nitrogen, sulfur, phosphorus or silicon having a valence equal to the value of x, and a free radical generating compound. This contact occurs at a temperature above both the melting point of the propylene polymer and the decomposition temperature of the free radical generating compound.