Abstract: Ionically activated metallocene catalyst compositions which are useful in the polymerization of olefins comprise transition metal cationic components associated with and stabilized by a polyanionic moleties constituted of non-coordinating anionic groups chemically bonded to core components. The transition metal cationic components typically are cyclopentadienyl-group containing Group 4, 5, and 6 metal compounds having a hydrolyzable ligand such that they react with the activator compounds so as to form the cationic components in non-coordinating association with bulky, labile anions derived from the activator compound which in turn is chemically bound to the core component, such as a polymeric or metal oxide support.

Abstract: This invention relates to a process for polymerizing olefins at high pressures in a polymerization medium at high temperature utilizing an ionic olefin polymerization catalyst derived from the reaction of a cyclopentadienyl-containing transition metal compound having a hydrolyzable alkyl or hydride ligand with an ion exchange activator. The ionic catalyst system has been found to be highly active at temperatures of 160.degree. C. or greater, to provide a process capable of producing polymer products of desired chemical and physical properties at high production rates.

Abstract: An ionic catalyst useful for the polymerization of olefins, diolefins and/or acetylenically unsaturated monomers is described. The catalyst comprises cyclopentadienyl derivatives of Group IV-B metals as cation and a compatible non-coordinating anion containing a plurality of boron atoms. Borate, carborate, borane, carborane, metallaborane and metallacarborane compounds exemplify anion sources and dihydrocarbyl-substituted bis(cyclopentadienyl) zirconium compounds exemplify the Group IV-B metal cation sources. Utility is illustrated for olefin polymerization.

Abstract: Ionic catalyst compositions can be prepared by combining two components. The first component is a bis(cyclopentadienyl) Group IV-B metal complex containing at least one ligand which will combine irreversibly with the second component or at least a portion thereof such as a cation portion thereof. The second component comprises a cation which will irrevesibly react with at least one ligand on the Group IV-B metal complex and a non-coordinating anion. The combination of the two components produces an ionic catalyst composition comprising a cationic bis(cyclopentadienyl) Group IV-B metal complex which has a formal coordination number of 3 and a 4+ valence charge and the aforementioned non-coordinating anion.

Abstract: Graft polymers for use as compatibilizers and/or modifiers for engineering thermoplastic compositions are provided comprising the reaction product of functionalized thermoplastic polymers with styrene-maleic anhydride copolymer. The functionalized thermoplastic polymers are based typically on polyolefin polymers and contain at least one functional group reactive either with styrene-maleic anhydride copolymer, or with direactive linking groups reactive with both of the functionalized thermoplastic polymer and styrene-maleic anhydride copolymer. The engineering thermoplastic compositions to be modified include polar engineering thermoplastics and the non-polar engineering thermoplastics based on styrene.

Abstract: The present invention is directed toward novel copolymers of ethylene and at least one other alpha-olefin monomer which copolymers have an intermolecular compositional distribution (CD), such that at least about 25% by weight of the polymer differs from the mean ethylene content of the polymer by at least plus or minus 5 wt % ethylene and a relatively narrow molecular weight distribution (MWD) such that the weight average molecular weight (Mw) of the polymer divided by the number average molecular weight (Mn) by the polymer is not greater than about 5.0.The polymers of this invention, which are characterized by exceptional green strength and good processing properties, may be prepared using a catalyst system comprising:a) a vanadium compound with a valence of 3 or more;b) a triorgano aluminum compound; andc) a specific halogenated organic promoter used in catalytic amounts.

Abstract: Polymers of olefin monomers and a substantially uniform concentration of carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers. Polymers of olefin monomers and carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers substantially devoid of halogen. Method for preparing polymers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds to form masked, functional group-containing monomers and polymerizing polymer chain monomers with the masked, functional group-containing monomers to produce a polymer chain. Method for forming masked, functional group-containing monomers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds. Masked, carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers.

Abstract: A thermoplastic resin composition which comprises 1 to 98 parts by weight of polyolefin (A), 1 to 49 parts by weight of modified polyolefin (B) obtained by reacting a polyolefin with an unsaturated carboxylic acid or a derivative thereof, 1 to 98 parts by weight of polyamide (C) [provided that (A)+(B)+(C)=100 parts by weight], 5 to 50 parts by weight of modified ethylene-.alpha.-olefin copolymer (D) obtained by reacting a low-crystalline ethylene-.alpha.-olefin copolymer with an unsaturated carboxylic acid or its derivative, and a metal compound (E) in an amount of 0.5 to 5 times the molar quantity of the acid added to said component (B) and said component (D).The thermoplastic resin composition is preferably used for producing products excellent in both impact resistance and surface luster.

Abstract: Disclosed herein are block and random graft copolymer compositions comprising a base polymer of crystalline polyolefin to which is grafted at least one side or end chain of a hydroxy-ended polylactone, the process for making said graft copolymer compositions, and use thereof in engineering thermoplastic resins.

Abstract: A method for preparing functionalized polymers formed by anionic polymerization, e.g., polystyrene, polyisoprene, etc., generally comprising the steps of conducting anionic polymerization, reacting the formed polymer with a sterically hindering compound such as 1,1-diphenylethylene, in the presence of a polar diluent, such as tetrahydrofuran, and then contacting the polymer so formed with CO.sub.2.

Abstract: Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These compositions are adducts of sulfur mono- and diimides having one of the following formulae: ##STR1## wherein R is a hydrocarbycontaining at least 18 carbon atoms, in which X.dbd. can be O.dbd., S.dbd., Y'--N.dbd., i is 0 or 1, --Y and Y'-- can be ##STR2## wherein R' is hydrocarbyl or hydrocarbyloxy, R" is hydrocarbyl, R'" and R"" are hydrocarbyloxy, and each of R', R", R'", and R"" is from from 1 to 20 carbon atoms.

Abstract: A finishing process for water-slurried elastomers wherein a partially dewatered elastomer is presented to an enclosed, low shear, self-cleaning, long residence time dryer for drying at low temperatures in order to remove the remaining water and residual volatiles. The dried product is then cooled in a pneumatic conveyor to temperatures required for baling.

Abstract: Ziegler-Natta catalyzed polymer chains are end capped with at least one functional group-containing unit which is otherwise essentially absent from said polymer chain. The chains can be grafted to form graft copolymers and star copolymers. The compositions are useful as oil additives and in general purpose elastomer as well as thermoplastic polymer compositions.

Abstract: The present invention provides for an improved butyl rubber composition which exhibits improved adhesion to pre-treated polyester textile materials, while at the same time important physical properties of cured butyl rubber such as modulus, tensile strength and elongation are maintained or even enhanced. The vulcanizable composition of the invention is based on a blend of butyl rubber and minor amounts of a copolymer of ethylene with a lower alkyl acrylate or methacrylate, or a terpolymer of ethylene, a lower alkyl acrylate or methacrylate and acrylic or methacrylic acid. The composition of this invention exhibits improved adhesion to pre-treated polyester textile materials.The invention also relates to laminates of the butyl rubber compositions of this invention with polyester textile materials such as yarns and woven fabrics.

Abstract: Thermoplastic polyolefin (TPO) compositions which have superior long-term heat aging characteristics are prepared by blending a crystalline thermoplastic resin with a halobutyl rubber under conditions of dynamic vulcanization and in the presence of a maleimide curative.

Abstract: A process for producing a thermoplastic resin composition which comprises preparing a component composed of 1 to 49 parts by weight of modified polyolefin (A) obtained by adding an unsaturated carboxylic acid or a derivative thereof to a polyolefin, 1 to 98 parts by weight of polyolefin (B), and 1 to 98 parts by weight of polyamide (C) [provided that (A)+(B)+(C)=100 parts by weight], mixing the component or its molten component with a metal compound (D) in an amount of 0.5 to 5 times the molar quantity of the acid added to the modified polyolefin (A), and subsequently melt-mixing the mixture. The thermoplastic resin composition prepared by this process is preferably used for providing products improved in both surface luster and mechanical strengths.

Abstract: The present invention relates to compositions comprising at least one elastomer and at least one plastic. The composition can be produced by preparing the elastomer and then blending it with the plastic. The composition can be subjected to an additional step of curing.

Abstract: Graft polymer comprising functionalized ethylene-alpha-olefin copolymer having polypropylene grafted thereto through one or more functional linkages, the process for making the graft polymer comprising combining the functionalized ethylene-alpha-olefin with maleated polypropylene, the use of the graft polymer for improving the impact properties of polypropylene compositions, and improved polypropylene blends.

Abstract: Polymers of olefin monomers and a substantially uniform concentration of carboxyl, hydroxyl, thio, amino, cabonyl and imino functional group-containing monomers. Polymers of olefin monomers and carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers substantially devoid of halogen. Method for preparing polymers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds to form masked, functional group-containing monomers and polymerizing polymer chain monomers with the masked, functional group-containing monomers to produce a polymer chain. Method for forming masked, functional group-containing monomers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds. Masked, carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers.

Abstract: Copolymers comprising ethylene, alpha-olefin, and olefinic chlorosilane or olefinic hydrocarbon halide, and method of preparing copolymers. The copolymers may be in the form of statistical copolymers, or may be formed of first and second segments. The copolymers are useful in fiberglass and rubber compositions, and for forming graft and block polymers. The copolymers may be cross-linked to form nodular copolymers. The nodular copolymers are particularly useful as lube oil additives.