Abstract: Modified cyclopentadiene resins comprising essentiallya) 20 to 80% by weight of cyclopentadiene compounds,b) 1 to 40% by weight of natural resin acids andc) 31 to 70% by weight of phenol resins.These compounds are suitable as binder resins for printing inks. They are distinguished by excellent compatibility with aromatics-free mineral oils and with vegetable oils.

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 is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.

Abstract: There are disclosed novel, solid, elastomeric block copolymers with improved resistance to cold flow wherein either 1) the terminal blocks are polymers of at least one conjugated diene I, e.g., isoprene, which contains at least five carbon atoms with at least one of each pair of double-bonded carbon atoms in the polymerized diene I units being additionally single-bonded to two carbon atoms, at least one middle or interior block is a polymer of butadiene, and at least one middle or interior block is a polymer of at least one aryl-substituted olefin, e.g., styrene; or 2) the terminal blocks are random copolymers of at least one diene I as previously defined and butadiene, and at least one middle or interior block is a polymer of at least one aryl-substituted olefin.

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

Abstract: This invention relates to heat-sealable plastic films PF with at least two-phased structure in the thickness range up to 400 .mu.m that are suitable for tightly sealing plastic comprisinga) a high molecular weight or crosslinked polymer P with a molecular weight Mw greater than 50,000 and a glass transition temperature Tg below 10.degree. C.; andb) a copolymer CP with a glass transition temperature Tg above 20.degree. C. made up of.alpha.) 0-85 wt. % methyl methacrylate.beta.) 0-100 wt. ethyl methacrylate.gamma.) 0-100 wt. cyclohexyl methacrylate, cyclopentyl methacrylate, or a mixture thereof;.delta.) 0-20 wt. % of a monomer copolymerizable with the monomers .alpha.)-.gamma.), and different from them, provided that the sum of the components .alpha.) to .delta.) is 100 wt. %wherein at least 2 wt. % of copolymer CP is covalently bound to polymer P.

Abstract: Rubber-modified styrene resins with excellent impact resistance are prepared by formulating a feed from a styrene-based monomer, or a mixture thereof with comonomers and high-viscosity rubber, an organic peroxide, and, if necessary, all inert organic solvent, preheating and continuously supplying the feed to one end of a plug flow type reactor equipped with an agitator, performing the preliminary polymerization to a conversion sufficiently high for the transformation of the rubber in the feed into particles while controlling the weight average particle diameter of the rubber particles to 0.8 to 5 .mu.m, withdrawing the prepolymerized feed from the other end of the reactor, and supplying it to a following plug flow type reactor for continuous enhancement of tile conversion.

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 molding material from a particulate graft polymer which consists ofA: a grafting base A based on an acrylate rubber andB: a graft B ofB1: from 40 to 89.9% by weight of at least one vinylaromatic monomer B1B2: from 10 to 49.9% by weight of at least one polar, coplymerizable, ethylenically unsaturated monomer B2B3: from 0.1 to 20% by weight of at least one monomer B3 containing one or more acidic groups.

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, said coagent selected from the group consisting of a first compound having the structural formula ##STR1## where R is a hydrocarbyl or a radical containing at least one atom of oxygen, sulfur, nitrogen, phosphorus or silicon; R.sup.1 is hydrogen or C.sub.1 -C.sub.12 alkyl or aryl; and x is an integer of 1 to 4, and a second compound having the structural formula ##STR2## where R' is a hydrocarbyl or a radical containing at least one atom of oxygen, sulfur, nitrogen, phosphorus or silicon; R.sup.2 is hydrogen or C.sub.1 -C.sub.1 2 alkyl or aryl; and y is an integer of 2 to 4, and a free radical generating compound.

Abstract: Propylene-ethylene copolymers are obtained by two-stage polymerization from the gaseous phase in an agitated fixed bed by means of a Ziegler-Natta catalyst system that contains in addition to a titanium-containing solid component also an aluminum compound as co-catalyst, wherein as Ziegler-Natta catalyst system a system is used which, following the reaction of the titanium-containing solid component with the co-catalyst, is deactivated by reaction with carbon dioxide. The copolymers are used for producing fibers, films and moldings.

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.

Abstract: The invention relates to a heat-sealable plastic film PF with an at least two-stage construction ranging in thickness up to 400 micrometer, that is suitable for tightly sealing plastic containers, comprising:a) a high molecular weight or crosslinked polymer P with a molecular weight in excess of 50,000 and a glass transition point Tg of <10.degree. C.; andb) a copolymer CP with a glass transition point Tg higher than 20.degree. C. and where said copolymer comprises.alpha.) 20 to 80% by weight of at least one monomer of Formula I ##STR1## wherein R.sub.1 stands for methyl or ethyl (preferably methyl); .beta.) 80 to 20% by weight of at least one monomer of Formula II ##STR2## wherein R.sub.2 stands for a C.sub.4-18 alkyl residue, preferably C.sub.4-12 or a C.sub.4-12 cycloalkyl residue different from cyclopentyl or cyclohexyl; and.gamma.

Abstract: A particulate graft polymer comprisingA: from 30 to 80% by weight of one or more elastomeric polymers A having a mean particle size of from 30 to 1000 run, comprising, based on A,A1: from 85 to 99.8% by weight of one or more alkyl acrylates A1 having from 1 to 8 carbon atoms in the alkyl radical,A2: from 0.1 to 5% by weight of one or more polyfunctional, crosslinking monomers A2, andA3: from 0.1 to 10% by weight of one or more monomers A3 containing one or more acid groups, orA11: up to 100% by weight of a diene A11,A12: up to 50% by weight of one or more vinyl-aromatic monomers A12,A13: up to 10% by weight of one or more monomers A13 containing one or more acid groups, as the graft base, andB: from 20 to 70% by weight of a shell B grafted onto the elastomeric polymer A and comprising, based on B,B1: from 50 to 89.9% by weight of one or more vinylaromatic monomers B1,B2: from 10 to 49.9% by weight of one or more polar, copolymerizable, ethylenically unsaturated monomers B2, andB3: from 0.

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.The methacrylic resin cast plate has a high transparency and impact resistance.

Abstract: Modified chlorinated polyethylene (CPE) for use as an impact modifier for polyvinyl chloride, comprising a thermoplastic grafted CPE prepared by polymerizing compatible monomers or comonomers, e.g. methyl methacrylate/styrene, methylmethacrylate or vinyl acetate, onto the CPE backbone via an aqueous slurry suspension polymerization and the process of producing the cited modified chlorinated polyethylene.

Abstract: A fluorochemical graft copolymer comprising: a base polymer comprising polymerized units derived from monomers having terminal olefinic double bonds, having a moiety comprising a fluoroaliphatic group grafted thereto. Also disclosed are processes for preparing such fluorochemical graft copolymers, forming and annealing methods for enhancing the surface activity of such a graft copolymer, polymer blends comprising such a fluorochemical graft copolymer and a matrix polymer that is miscible with the base polymer, and a method for reducing the surface energy of a polymer comprising polymerized units derived from monomers having terminal olefinic double bonds.

Abstract: Hydrogenated butadiene polymers having terminal silyl groups are prepared from a (4-vinylphenylene)dimethyl(t-butyl)silyl ether which is added to the polymer chain as a silyl ether initiator or an endcapping agent, or both. The silyl groups are then converted to phenolic groups. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.

Abstract: A graft consisting of from 5 to 90% of a core A1 having a glass transition temperature above 25.degree. C. made up of, from 50 to 99.9% of a vinylaromatic monomer and from 0.1 to 10% of a polyfunctional crosslinking and/or graft-linking monomer optionally up to 49.9% of one or more copolymerizable monomers; from 5 to 90% of a first shell A2 of elastomeric material made up of from 50 to 99.8% of an alkyl acrylate and/or of a diene, from 0.1 to 10% of a polyfunctional graft-linking monomer, up to 49.8% of one or more copolymerizable unsaturated monomers and from 0.1 to 10% of one or more monomers containing acidic groups; from 5 to 90% of a second shell A3 of rigid material made up of from 50 to 99.9% of a vinylaromatic monomer, up to 10% of a polyfunctional cross-linking and/or graft-linking monomer, up to 49.9% of one or more copolymerizable monomers and from 0.