Abstract: A process for promoting the adhesion of polyolefins to metals, glass sheets, cement, asbestos or polar polymers (polyamides, polyesters, ethylene-vinyl acetate copolymers, etc.), which consists in modifying the polyolefin by reaction with 0.01%-7% by weight of a compound selected from the group consisting of bis-maleamic acids, bis-fumaramic acids, alkyl esters of said acids in which the alkyl radical has from 1 to 12 carbon atoms, and precursors of said acids or esters, and successively heating at temperature at which the polyolefin is applied to the support to be coated. The main applications concern the lining of pipes or other manufactured metal articles in order to protect them against chemical and atmospheric agents.

Abstract: A multiply grafted copolymer is obtained by graft-polymerizing onto non-elastic trunk polymer particles (a) a monomer mixture (b) comprising an elasticity-imparting monomer selected from conjugated dienes and acrylates, a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with a terminal double bond and an optional ethylenically unsaturated monomer, and an ethylenically unsaturated monomer (c) in order. An antistatic resin composition comprising this multiply grafted copolymer alone or a mixture of this copolymer and a thermoplastic resin compatible therewith can utilize the rubbery polymer component (b) more effectively than an antistatic resin composition comprising a graft copolymer obtained by graft-polymerizing an ethylenically unsaturated monomer (c) onto a trunk polymer comprising a mere copolymer of a monomer mixture (b), and thus can provide an improved antistatic effect.

Abstract: Rubber compositions and reinforced rubber articles are described which exhibit improved adhesion by the incorporation therein of an adhesive amount of certain N-(carboxyalkyl)maleamic acids.

Abstract: Polymeric products containing cationic salt groups, their method of polymerization and their use in coating applications are disclosed. The dispersions are prepared by dispersing in water an at least partially neutralized amine group-containing polymer followed by adding a polymerizable ethylenically unsaturated monomer composition to the dispersion and subjecting the dispersion to addition polymerization conditions. The resultant dispersions are useful in coating applications.

Abstract: Compatibilized polymer blends are described comprising a blend of olefin polymer, nitrile rubber, and a compatibilizing amount of block copolymer comprising nitrile rubber compatibilizing segments and olefin polymer compatibilizing segments.

Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

Abstract: Structurally colored polymers, formed by polymerizing monomers of the acrylic type, containing 0.5% to 20% by weight of dyestuff in copolymerized form or grafted form which have a number-average molecular weight between 1000 and 12,880 g. and contain m hydroxy functions and n groups of the formula: ##STR1## in which X.sub.1 is hydrogen, chlorine, bromine or methyl;and R.sub.1 and R.sub.2 are the same or different and represent hydrogen, chlorine, methyl, phenyl, substituted phenyl or carboxyl;m being a number from 0 to 49and n being a number from 2 to 70such that the sum m+n is from 7 to 70and the ratio m/n is from 0 to 2.4.These polymers are used in particular for the formation of colored coating on various supports and surfaces.

Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a watersoluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

Abstract: Novel lubricating oil polymer additives are obtained by the following:(1) by preparing, by anionic polymerization, a living diene polymer of Mn of between about 20,000 and 300,000;(2) by functionalizing the said polymer by means of an N-substituted lactam of the type of N-alkylcaprolactam, N-binylcaprolactam, and particularly of the type of N-alkylpyrrolidione and N-vinylpyrrolidone; and(3) by hydrogenating the said functionalized polymer.A variant method of preparing the said polymers comprises subjecting the living polymer to a metalation operation before functionalization; the hydrogenation operation is carried out before metalation or after functionalization.The said polymers may be used as additives which improve the viscosity index and the dispersing power of lubricating oils. The amount of additive added is between about 0.1 and 10 percent by weight.

Abstract: Electroconductive copolymers of diallyldimethylammonium chloride and at least 15 percent by weight acrylamide which exhibit improved solvent holdout.

Abstract: Stable, fluid, moldable and curable compositions are described from which may be fabricated composite materials, of improved mechanical properties, comprising an organic polymer matrix and a particulate inorganic reinforcing phase dispersed in and bonded to the matrix. The fluid compositions comprise (A) a polymerizable organic liquid having a viscosity not greater than 50 poise at the molding temperature, (B) inorganic filler particles of defined size constituting at least 20% by volume, and optionally up to 90% by volume, of the total composition, and (C) a defined polymeric dispersant whereby the filler particles are stably dispersed in the polymerizable liquid. The generally low viscosity of the curable compositions enables them to be cast by simple techniques and polymerization of the component (A) yields the above-described composite materials.