Abstract: Disclosed are a class of phenolic-hydrazide compounds of diverse structure which are useful as stabilizers for polyolefins. The phenolic-hydrazide compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin.

Abstract: This invention relates to a two stage aqueous emulsion polymerization process for making graft copolymers. In the first stage, at least one first ethylenically unsaturated monomer is polymerized in the presence of at least one mercapto-olefin compound to form a macromonomer with terminal functional groups. In the second stage, at least one second ethylenically unsaturated monomer is polymerized in the presence of the macromonomer such that a copolymer is formed with a backbone of polymerized units of the at least one second ethylenically unsaturated monomer and side chains of the macromonomer.

Abstract: Polymeric compositions are stabilized against molecular weight degradation by the inclusion in the composition of an inhibitor which is preferably an ethylenically unsaturated compound. The invention is of particular value when the polymer is a polymer of (meth)acrylamide in which the amount of contamination of the polymer with free (meth)acrylamide monomer is extremely low and the inhibitor has LD.sub.50 above 400.

Abstract: The present invention provides a thermosetting coating resin consisting of a branched polymer, which branched polymer is obtained by copolymerizing a macromolecular monomer having a radical-polymerizable group at one end in the molecule and having a weight-average molecular weight of 1,000-10,000, with another radical-polymerizable monomer, which branched polymer contains the unit of said macromolecular monomer in a proportion of 40-99.5% by weight based on the amount of total constitutional units, which branched polymer has a cross-linkable functional group, and which branched polymer has a weight-average molecular weight of 5,000-30,000. The present invention further provides a process for producing such a thermosetting coating resin.

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 macromonomer 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: A composition which contains thermosettable monomers from which continuous products can be made without using continuous carrier material, the composition containing bismaleimide monomers and a thermoplastic polymer having a high molecular weight.Products made from a composition of the present invention are suitable for use in those fields where good temperature resistance, good fire resistance and/or good corrosion and solvent resistance are required in addition to good mechanical properties. Examples are cable sheathing, fire-resistant clothing, asbestos substitutes, high-temperature filters, aircraft interiors, precursors for carbon fiber , food packagings (for example, for use in a microwave oven), capacitor films and filament winding products.

Abstract: A method for preparing a polyolefine--vinyl polymer composite, wherein about 10-200 parts by weight of vinyl monomer and about 0.01-4.0 parts by weight of a free radical polymerization initiator, based on 100 parts by weight of vinyl monomer, are impregnated in 100 parts of weight of polyolefine particles by slowly mixing these at a temperature of about 20.degree.-130.degree. C. while maintaining the particle structure of the polyolefine. After 50-99% of the amount of the monomer has been absorbed into the polyolefine particles, a water suspension is prepared by adding to the above-mentioned mixture about 80-1000 parts by weight water, based on 100 parts of weight of polyolefine+vinyl monomer, as well as a stabilizing agent. The temperature of the water suspension is then increased for polymerizing the vinyl monomer.

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: A graft polymer is prepared by grafting, onto a polymeric substantially saturated hydrocarbon backbone, a free-radical polymerizable vinyl nitrogen monomer, which grafting takes place with improved efficiency in the presence of minor amounts of a volatile aliphatic hydrocarbon substituted aromatic solvent capable of free-radical hydrogen atom chain transfer. The modified hydrocarbon based polymer finds utility as an additive for lubricating oils, particularly as dispersant-viscosity improvers for engine oils.

Abstract: Cement dispersion agents containing a graft copolymer composed of four kinds of constituent unit each having a specified structure can provide improved fluidity to cementing compositions, prevent slump loss after the kneading process and reduce the drying shrinkage of hardened concrete produced at the same time.

Abstract: The novel alkadiene/vinyl-aromatic copolymers which contain side groups and have a random, block-like or star-like structure and whose polymerized alkadiene comonomer units are partially or completely selectively hydrogenated, and which contain one or more side groups having one or more radicals capable of (4+2) cycloaddition (Diels-Alder reaction) with dienophiles are suitable as such as viscosity index (VI) improvers or can be used for the preparation of dispersant VI improvers. For this purpose, they are reacted with one or more dienophiles which are capable of a Diels-Alder (4+2) cycloaddition reaction and preferably contain strongly polar functional groups.

Abstract: Polyolefin graft copolymers are disclosed which comprise a polyolefin homopolymer or copolymer backbone polymer having a plurality of free radically polymerized polymeric segments chemically bonded as side chains. It has been found that the use of a borane-containing polyolefin comprising a copolymer of 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 free radical polymerization and copolymerization. Numerous free radical polymerizable monomers, such as methyl methacrylate, styrene, alpha-methylstyrene, acrylonitrile and the like, can be polymerized to yield high molecular weight graft copolymers. By this synthetic route, high graft efficiency is observed with only a very low concentration of homopolymer being produced.

Abstract: A flame-resistant, photo-curing resin composition of the present invention consists of:(a) 35 to 65 parts by weight of an acrylic thermoplastic polymer, the acrylic thermoplastic polymer being 15 to 30% by weight copolymerized with at least one of monomer containing an alpha, beta-unsaturated carboxyl group,(b) 5 to 30 parts by weight of a bromine-substituted monomer represented by a general formula [I]: ##STR1## wherein R.sub.1 is H or CH.sub.3,A is ##STR2## wherein R.sub.2 is an alkylene group containing two or three carbon atoms,n is an integer between 1 and 4, andX.sub.1, X.sub.2, and X.sub.3 are Br or H, under a condition that at least two of the X.sub.1, X.sub.2, and X.sub.3 are Br,(c) 0 to 10 parts by weight of antimony trioxide particles with an average diameter of 0.1 .mu.m or smaller,(d) 20 to 50 parts by weight of a vinyl monomer, excluding component (b), and(e) 0.

Abstract: In a second-order or third-order organic nonlinear optical material, one of compounds represented by the following formulas (1) and (2) is bonded to a polymer: ##STR1## wherein each of .pi..sub.1 to .pi..sub.n independently represents a cyclic compound of a .pi. electron conjugate system, at least one of R.sub.11 to R.sub.n4 represents an alkyl substituting group derivative and others represent hydrogen, each of X.sub.1 to X.sub.n-1 and Y.sub.1 to Y.sub.n-1 represents one member selected from the group consisting of CH, N, and N.fwdarw.O, A represents an electron acceptor group, D represents an electron donor group, and n is an integer of 3 or more.

Abstract: Polymer compositions which are highly absorbent to aqueous electrolyte solutions are prepared by copolymerization of an ampholytic monomer having the formula of ##STR1## where one and only one of the substituted groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4 must be a vinyl group, the rest can be the same or different and can be hydrogen or a C.sub.1 -C.sub.3 alkyl group; R.sub.5 is a phenyl group; n is .gtoreq.1 and .ltoreq.6; and q is 0 or 1; and an olefin monomer having an ethylenic structure as well as by graft copolymerization of at least an olefin monomer having an ethylenic structure and an ampholytic monomer having the formula disclosed above onto a main polymer selected from the group consisting of polysacchardies and polyolefins. Also disclosed is a process for absorbing large quantity of aqueous electrolyte solution employing the polymer compositions.

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: Semipermeable composite membrane, with a porous carrier substrate, whereby said carrier substrate is provided with a polymer network obtained by polycondensation, especially interfacial polymerization, which is built up of at least one reactive polyfunctional monomer or oligomer or prepolymer or polymer, and at least one acid halide containing polymer.The specialty of this semi-permeable composite membrane consists therein that the acid halide containing polymere itself is built up of one or more vinyl containing monomers.The acid halide containing polymer is generally a copolymer of acryloylchloride H.sub.2 C.dbd.CHCOCl or methacryloyl chloride H.sub.2 C.dbd.C(CH13)COCl with one or more vinyl containing monomers.Usually the vinyl containing monomer is an acrylate or an acrylamide or a mixture thereof.

Abstract: Disclosed is a plastics composition comprising a thermoplastic blend comprising: (1) 5-95 wt % of a polyamide (PA) and 95-5 wt % of a polyester (PE) incorporating 1-50 wt % of an aliphatic dimer fatty acid, (2) 0.01-30 parts by weight of a compound having at least one ethylenically unsaturated group or propylene group and further having a carboxylic, acid anhydride, acid amide, imido, carboxylic ester, amino or hydroxyl group per 100 parts by weight based on the combined weight of PA and PE, (3) 0-90 parts by weight of a polyester not modified with dimer fatty acid per 100 parts by weight based on the combined weight of PA and PE. Preferably the polyester (PE) is a polyethylene terephthalate or polybutylene terephthalate modified with di-oleic acid. The blends have a greatly improved elongation at break and are readily spinnable.

Abstract: This invention relates to a two stage aqueous emulsion polymerization process for making graft copolymers. In the first stage, at least one first ethylenically unsaturated monomer is polymerized in the presence of at least one mercapto-olefin compound to form a macromonomer with terminal functional groups. In the second stage, at least one second ethylenically unsaturated monomer is polymerized in the presence of the macromonomer such that a copolymer is formed with a backbone of polymerized units of the at least one second ethylenically unsaturated monomer and side chains of the macromonomer.

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 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: 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: 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: Disclosed is an improved process of the post-emulsion method capable of forming crosslinked resin particles which do not have fusion bonds between particles and which have good storage stability and good redispersibility in an aqueous medium. The process comprises (a) dispersing in an aqueous medium a resinous component comprising (I) a base resin having a glass transition temperature (Tg) of 0.degree. C. or less and a polymerizable double bond, (II) a monomer which, when polymerized, provides a resin of which Tg is 20.degree. C. higher than that of said base resin, or a resin of which Tg is 20.degree. C. higher than that of the base resin, and (III) a polyvinyl compound; (b) crosslinking inside the dispersed resin particles and; (c) removing the aqueous medium therefrom.

Abstract: A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the akali metal-containing polymer with an acrylamide modifier compound of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, R.sup.2 and R.sup.3 are independently an alkyl group and n is an integer said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent.

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: 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: An anti-fogging resin film-forming composition, comprising a block or graft copolymer and a surfactant, each of which block and graft copolymers consists of a hydrophilic polymer segment and a hydrophobic polymer segment having specifically limited monomer compositions, is disclosed. A coating film formed on a matrix surface from the composition has a durable excellent anti-fogging property and having high adhesion to the matrix surface and high strength.

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.

Abstract: A stable emulsion polymer is prepared by the emulsion polymerization of a vinyl monomer component in the presence of a base neutralized copolymer having a peak molecular weight not exceeding 50,000 of an olefinically unsaturated material selected from the group consisting of 1-decene, 1-dodecene, undecenylic acid and mixtures thereof and an ethylenically unsaturated anhydride containing material. The emulsion polymer is particularly useful for preparing coating compositions which have excellent physical properties.

Abstract: An ethylene graft copolymer is disclosed, which is obtained by radical polymerizing a monomer composition comprising (A) from 50 to 99.95% by weight of ethylene, (B) from 0.05 to 50% by weight of a macromonomer having a number average molecular weight of from 2,000 to 20,000 and having a (meth)acryloyl group only at one terminal of the molecular chain thereof, and (C) 0 to 49.95% by weight of other radical polymerizable monomer(s). The ethylene graft copolymer is a modifier for improving impact resistance of engineering plastics or a compatibilizer for engineering plastics to provide a molding resin composition excellent in impact resistance and oil resistance. The ethylene graft copolymer is also useful as a hot-melt adhesive or a pressure-sensitive adhesive.

Abstract: Polyolefin-vinyl polymer composites are produced by impregnating polyolefin particles with vinyl monomer and free radical polymerization initiator in the ratio of about 10-200 parts by weight of vinyl monomer and 0.01-4.0 parts by weight free radical polymerization initiator per 100 parts by weight polyolefin, the impregnation being effected by slowly mixing the components at room temperature or at an elevated temperature below the decomposition temperature of the free radical polymerization initiator. After the impregnation is completed, an aqueous suspension of the mixture is formed by adding the same to water in a ratio of about 100 parts by weight of mixture per 80-1000 parts by weight of water, after which the aqueous suspension is heated to a temperature sufficiently high to polymerize the vinyl monomer.

Abstract: Disclosed is a method of making graft copolymers of olefin polymers by contacting a particulate olefin polymer with a free radical polymeriztion initiator, e.g., a peroxide, and a vinyl monomer at about from 60.degree. to 125.degree. C., while controlling the monomer addition rate so that it does not exceed about 4.5 pph/min, and most preferably does not exceed about 3.0 pph/min, at any monomer feed level. To prevent polymer degradation, a non-oxidizing environment is maintained throughout the process, and residual free radicals are deactivated, and unreacted initiator is decomposed, before the graft copolymer is exposed to air.

Abstract: Binders for moisture-hardening coating or sealing compositions contain modified copolymers having a weight average molecular weight of from 1,500 to 75,000 determined by gel permeation chromatography of olefinically unsaturated compounds containing chemically incorporated moieties which are addition-reactive to amino wherein the modified copolymers contain both(i) intramolecular carboxylic anhydride moieties and(ii) olefinically unsaturated (meth)acrylate moieties in chemically bound form as the moieties which are addition-reactive to amino, with the anhydride equivalent weight being in the range from 392 to 9,800 and the (meth)acrylate equivalent weight in the range from 284 to 7,100.

Abstract: A graft copolymer produced by polymerizing an ethylenically unsaturated monomer in the presence of a fluorine-containing resin having reactive double bonds via a urethane linkage is excellent in transparency and pigment dispersibility and can provide a coating composition excellent in weather resistance.

Abstract: A polymer-type polymerization initiator produced by copolymerizing (A) 40 to 60 mole % of an N-vinyllactam and (B) 60 to 40 mole % of at least one fumarate containing a peroxy group, the peroxy-fumarate (B) being represented by the following formula: ##STR1## wherein R1 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 18 carbon atoms, or an aromatic hydrocarbon group containing 6 to 18 carbon atoms; and R2 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 13 carbon atoms, or a phenyl group.The peroxy-fumarate (b1) may be used in combination with (b2) at least one diester of fumaric acid selected from the group consisting of alkyl fluoroalkyl fumarate, alkyl silicon-containing-alkyl fumarate, fluoroalkyl, silicon-containing-alkyl fumarate, bis(fluoroalkyl) fumarate, and bis(silicon-containing-alkyl) fumarate, a mole ratio of the peroxy-fumarate to the diester of fumaric acid falling within a range of 9 to 1 to 1 to 9.

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 applicances, etc.

Abstract: A novel cationic electrodepositable resin which offers reduced bake off lose, reduced yellowing of topcoats and very smooth film is disclosed. The backbone resin contains the basic polyepoxy amine adduct but it is crosslinked with a diol modified methylene diphenyl diisocyanate (MDI) which is blocked with a mixture of various alcohols.

Abstract: A toner resin contains a specific polymer as its principal component. The polymer is obtained by mixing 20-80 parts by weight of a low molecular polymer having a number average molecular weight of 1,000-5,000 and a glass transition temperature (Tg) of 40.degree.-75.degree. C., 80-20 parts by weight of a vinyl monomer, 0.01-5 parts by weight of a polymerization initiator and 0-3 parts by weight of a crosslinking agent, dispersing the resultant mixture in an aqueous system and then polymerizing same. The toner resin has excellent low-temperature fixing property and offsetting resistance, can provide marks of superb vividness, and also can prevent modifications of copied marks, for example, due to transfer of a plasticizer.

Abstract: The present invention provides a soil conditioner composed of a powdery or granular composition in which a filler is integrally included in hydrogel and a method of producing the same wherein an aqueous solution of a hydrophilic cross-linkable polymer is mixed with a filler and then the mixture is subjected to cross linking treatment by which the polymer is made to have cross-linked structure and formed into gel. Since the filler is integrally included in hydrogel, the soil conditioner, when mixed with soil, does not separate into the respective components, and there is no problem of the hydrogel emerging up to the surface of soil with the passage of time.

Abstract: An impact resistance thermoplastic molding composition contains, each percentage being based on A+B, from 80 to 55% by weight of a hard matrix A of a copolymer containing at least 95% by weight of an aromatic vinyl monomer a.sub.11 of from 8 to 10 carbon atoms and at least one comonomer a.sub.12 in a proportion of 0.1 to 5% by weight, based on A, and from 45 to 20% by weight of a soft phase B which, uniformly dispersed in the hard matrix, has an average particle diameter d.sub.50 (volume average) of from 3.5 to 9 .mu.m and is obtainable by polymerization of the mixture of monomers a.sub.11 and a.sub.12 in the presence of an elastomer (rubber) and subsequent isolation of the useful product, wherein the comonomer a.sub.12 has the general formula I ##STR1## where X is --OR.sup.2, --COOR.sup.2 or --CONHR.sup.3,R.sup.1 is hydrogen or methyl andR.sup.2 and R.sup.3 are each alkyl of from 1 or 2 to 10 carbon atoms with at least one OH or epoxy group or at least one other polar group.

Abstract: The present invention relates to a process for the functionalization, and preferably the maleation of a polyolefin, preferably polypropylene, by use of a selected class of peroxides which will not cause the molecular weight of the polyolefin to significantly degrade. The class of peroxide initiators which are capable of successful use in the present invention may be more broadly classified as peroxides which have radical fragments when the peroxide is dissociated, which are a combination of R.multidot. and R0.multidot., where R is an aliphatic hydrocarbon, and 0 is oxygen. The preferred peroxide initiators for use in carrying out the present invention so as to obtain the results indicated above are t-butyl peroxypivalate and isononanoyl peroxide. The composition resulting from the practice of the process of the invention is a maleated polypropylene in which the polypropylene has more than 0.3 weight percent grafted maleic anhydride and preferably greater than 0.4 weight percent, for example, from 0.

Abstract: A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared where the starting polyol is capped with alkylene oxide and/or the adduct formed between the starting polyol and the reactive unsaturated compound is capped with ethylene oxide.

Abstract: An impact resistance modifier for polycarbonate, which is a copolymer, comprising an elastomer and a methyl methacrylate copolymer, which are bonded covalently. The methyl methacrylate copolymer is one that is compatible by itself with polycarbonate resin due to specific comonomers. Such comonomers are aromatic (meth)acrylic esters and (meth)acrylamides, cycloalkyl(meth)acrylamides and cycloalkylmaleimides. Thermoplastic molding compounds comprising polycarbonate and the new impact resistance modifier exhibit excellent impact resistance.

Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.

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: 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: Colored microfine globular particles are produced by causing carbon black to react with a polymer capable of reacting with the carbon black thereby forming a carbon black-graft polymer, dispersing this carbon black-graft polymer in a polymerizable monomer component, and then polymerizing the polymerizable monomer component. These particles, in the unmodified form, are usable as a toner for the development of images of static charge and, in a form incorporated in a varying component, are usable such as in resin composition, coating composition, thermosensitive transfer ink ribbon coating agent, thermosensitive transfer ink, or back-coating agent for magnetic recording medium.

Abstract: Functionalized, selectively hydrogenated block copolymers are produced by reacting a maleic acid compound with a selectively hydrogenated block copolymer of monoalkenyl aromatic compound and conjugated alkadiene having within the aromatic portion monomer units containing a benzocyclobutene moiety.

Abstract: Polypropylene articles are provided. The polypropylene articles comprise non-crystalline mesomorphous polypropylene having olefinic unsaturation-containing monomers graft-polymerized thereon by ionizing radiation in a dosage sufficient to degrade crystalline polypropylene. The irradiated polypropylene articles retain useful tensile properties after storage periods of as long as at least about four months.