Abstract: Allyl halides are polymerized by a catalyst, silicic or silicoformic acids, to produce poly(allyl halide) polymer and poly(allyl alcohol) polymer.

Abstract: Transition metal compositions which are the products of reacting a transition metal complex of the formula RmMXp with a substantially inert matrix material having a hydroxylic surface which is free from adsorbed water, wherein M is a transition metal of Groups IVA to VIA, R is a hydrocarbon group, X is a monovalent ligand and m and p are integers, m having a value from 2 to the highest valency of the metal M and p having a value of from 0 to 2 less than the valency of the metal M, except when M is a metal of Group VIA, when p is 0. When present, ligand X is preferably halogen. The compositions are useful as initiators, particularly for the polymerization of olefinically unsaturated monomers, for example ethylene and propylene.

Abstract: Compounds having the formula ##STR1## wherein n and m are, individually, 0 or 1, X is an anion, R' is hydrogen, methyl or phenyl and R.sup.2, R.sup.3 and R.sup.4 are, individually, hydrogen, alkyl, aryl, alkaryl or aralkyl, polymers thereof and methods for their production, are disclosed. The compounds form polymers useful in the treatment of water sludges, the formation of fibers and the treatment of paper.

Abstract: A process for the preparation of an amorphous, vulcanizable, elastomeric copolymer by copolymerization of ethylene and at least one .alpha.-olefin having from 3 to 10 carbon atoms e.g. propylene and optionally in the presence of at least one non-conjugated diene, using as catalyst a transition metal composition which is the product of reacting a transition metal complex of the general formulaR.sub.m MX.sub.p (1)with a substantially inert matrix material having a hydroxylic surface which is free from adsorbed water, where M is a transition metal of Groups IVA to VIA of the Periodic Table of the Elements, R is a hydrocarbon group or substituted hydrocarbon group, X is a monovalent ligand and m and p are integers, m having a value from 2 to the highest valency of the metal M, and p having a value from 0 to 2 less than the valency of the metal M, the copolymerization being effected in a diluent comprising the .alpha.-olefin or mixture of .alpha.

Abstract: A particulate catalyst support containing titanium is heated to activation temperature and thereafter impregnated with a .pi. bonded organochromium compound. Thereafter the chromium-containing catalyst is reactivated, at least a portion of the reactivation occurring in the presence of oxygen. Such catalysts are particularly suitable for the production of high melt index polymer from at least one mono-1-olefin containing 2 to 8 carbon atoms per molecule.

Abstract: Novel heterogeneous, nickel-containing catalysts comprisingA. a nickel carbonyl complex, andB. an acidic, solid, silica-based material are active in numerous reactive environments such as oligomerization, including homo- and co-dimerization, and polymerization of various olefins. In specific aspects, bis(triphenylphosphine) nickel dicarbonyl supported on an acidic, calcined, silica-alumina support containing a separate alumina phase, is active in, for instance, the oligomerization, particularly dimerization, of ethylene and propylene, the codimerization of a conjugated diene and an alpha-olefin and the polymerization of conjugated dienes.

Abstract: A starting monomer mixture containing a minor amount of a cross linking agent is precipitation polymerized in a diluent/precipitant which is an unlimited solvent for the starting monomers but is neither a solvent or a substantial swelling agent for the resultant polymer. The amount of cross linking agent is maintained during polymerization at a critically low percent by volume relative to the entire polymerization mixture. The resultant product falling from the polymerization contains substantially only soluble hydrophilic polymers and copolymers.

Abstract: This invention discloses homopolymers and interpolymers of nonconjugated diolefins defined by the formula: ##EQU1## where R.sub.1, R.sub.2 and R.sub.3 may be hydrogen, a lower alkyl group containing up to 4 carbon atoms or an aryl group and R.sub.4 may be a lower alkyl group containing up to 4 carbon atoms or an aryl group. It is also disclosed that these homopolymers and interpolymers can be prepared by solution polymerization employing cationic catalyst systems and also coordination catalyst systems. The polymers are either resinous or rubbery in nature.

Abstract: Process for polymerizing ethylene or mixtures of ethylene with other 1-olefins by contacting the monomer with a titanium modified catalyst that has been pretreated with a hydrocarbon other than the hydrocarbon used as polymerization diluent.

Abstract: There are prepared reaction products of a. 4,4-bis-(hydroxymethyl)-cyclohexene compounds of the formula ##EQU1## where R.sup.1, R.sup.2 and R.sup.4 are the same or different and are hydrogen, methyl or phenyl and there is also present either (1) X as the bridging member methylene or ethylene or (2) X is absent and there are present both R.sup.3 and R.sup.5 wherein R.sup.3 and R.sup.5 are the same or different and are hydrogen, methyl or phenyl with (b) sulfur. The compounds are useful in cross-linking vulcanizable elastomers.

Abstract: The deleterious foam encountered during the bulk polymerization of diene monomers with each other or with vinyl aromatic compounds can be prevented by conducting the bulk polymerization in the presence of an organosiloxane anti-foam compound, which compound does not adversely affect either the coordination catalyst system or the properties of the polymer product.

Abstract: An olefin polymerization process for the preparation of polyolefins having relatively low molecular weights and high melt indexes without loss of catalyst activity, utilizing a catalyst comprising a silica xerogel support having a pore volume greater than about 2.0 cc/g, the major portion of which volume is provided by pores having pore diameters ranging from 300 to 600 A and a surface area ranging from 200 to 500 m.sup.2 /g, and having deposited thereon a metal-containing catalytic material, such as chromium oxide, or other metal oxide. The process is designed for the preparation of polymers and copolymers of 1-olefins having a maximum of 8 carbon atoms in the chain and having no branching nearer the double bond than the 4-position, e.g., ethylene polymers.

Abstract: The specification discloses resinous compositions comprising copolymers of alpha methyl styrene and vinyl toluene, 95 percent by weight of said copolymers having molecular chain lengths less than 100 Angstroms. The compositions are characterized by softening points in the range of about 10 to 98.degree.C and good solubility in paraffin wax. Processes are disclosed for preparing said compositions by copolymerizing mixtures of monomers of vinyl toluene and alpha methyl styrene in a weight ratio in the range of 2.5:1 to 4.5:1 in the presence of an acid clay catalyst.