RUBBER MIXTURE COMPOSITION AND METHOD FOR ITS PREPARING (VARIANTS) Russian patent published in 2008 - IPC C08L23/28 C08J3/00 C08K5/17 

FIELD: rubber compositions, chemical technology.

SUBSTANCE: invention relates to rubber mixture compositions and methods for their preparing. Preparing a rubber mixture composition involves mixing from 5 to 90 wt.-% of rubber component chosen from butyl rubber, halogenated butyl rubber, stellate butyl rubber, halogenated stellate butyl rubber, isobutylene homopolymer, chloroprene, butadiene-nitrile rubbers, ethylene-propylene-diene triple copolymers, ethylene-propylene copolymers, butadiene styrene rubbers, polybutadiene, polyisoprene, isoolefin-alkylstyrene copolymer, halogenated isoolefin-alkylstyrene copolymer, natural rubber, polypropylene, polyethylene, polyurethane, polyvinyl chloride, silicon rubber, propylene oxide polymer and their mixtures, from 0.01 to 5 wt.-% of amine compound represented by the formula: (R¹R²R³)N wherein R¹ means either hydrogen atom or hydrocarbyl group comprising from C₄ to C₃₀ carbon atoms; R² means either hydrogen atom or hydrocarbyl group comprising from C₁ to C₃₀ carbon atoms, and R³ means either hydrogen atom or hydrocarbyl group comprising from C₁ to C₃₀ carbon atoms under condition that at least one radical among R¹, R² and R³ doesn't mean hydrogen atom, from 5 to 90 wt.-% of isoolefin copolymer comprising a link derivatized from halogenmethylstyrene, isoolefin link comprising from 4 to 7 carbon atoms, and copolymer comprises from 0.5 to 20 wt.-% of halogenmethylstyrene links and usual additives. Invention provides preparing the rubber mixture composition possessing the enhanced strength before treatment and enhanced stability against heat aging after vulcanization.

EFFECT: improved preparing method, improved and valuable properties of composition.

51 cl, 4 tbl, 3 ex