KR900009701A - Vulcanizing Rubber Activator System for Rubber Composition - Google Patents

Abstract

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Description

Vulcanizing Rubber Activator System for Rubber Composition

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Claims (15)

A method of increasing the vulcanization rate of a rubber composition characterized by adding methyl trialkyl ammonium salt of the general formula to sulfur vulcanizable rubber: Wherein R ¹ , R ² and R ³ are alkyl radicals having 8 to 10 carbon atoms irrespective of each other, and M is selected from the group consisting of Cl, Br, CH ₃ S0 ₄ and HS0 ₄ . The method of claim 1 wherein the methyl trialkyl ammonium salt is added at least 0.05 phr. The method of claim 2, wherein the methyl trialkyl ammonium salt is added in an amount ranging from about 0.05 to about 5. ophr. The method of claim 1 wherein M is Cl or CH ₃ SO ₄ . The method of claim 4, wherein M is Cl. The method of claim 4, wherein M is CH ₃ SO ₄ . 3. The method of claim 2, wherein the sulfur vulcanizable rubber comprises an elastomer containing an olefinic unsaturated group; Natural rubber, neoprene, polyisoprene, butyl rubber, polybutadiene, styrene-butadiene copolymer, methyl methacrylate-butadiene copolymer, isoprene-styrene copolymer, methyl methacrylate-isoprene copolymer, acrylonitrile-isoprene aerial Process selected from the group consisting of copolymers, acrylonitrile-butadiene copolymers, EPDM or mixtures thereof. 8. The method of claim 7, wherein the sulfur vulcanizable rubber is selected from the group consisting of natural rubber, SBR, polyisoprene, or mixtures thereof. Sulfur vulcanizable rubber composition characterized by an elastomer containing an olefinically unsaturated group, a sulfur vulcanizing agent, an accelerator and a methyl trialkyl ammonium salt of the general formula: Wherein R ¹ , R ² and R ³ are alkyl radicals having 8 to 10 carbon atoms irrespective of each other, and M is selected from the group consisting of Cl, Br, CH ₃ S0 ₄ and HS0 ₄ . 10. The sulfur vulcanizable rubber composition according to claim 9, wherein the methyl trialkyl ammonium salt is present in an amount of at least 0.05 phr. The sulfur vulcanizable rubber composition according to claim 10, wherein the methyl trialkyl ammonium salt is present in an amount ranging from about 0.05 phr to about 0.5 phr. The sulfur vulcanizable rubber composition according to claim 9, wherein M is Cl or CH ₃ S0 ₄ . The method of claim 9, wherein the elastomer is a natural rubber, neoprene, polyisoprene, butyl rubber, polybutadiene, styrene-butadiene copolymer, methyl methacrylate-butadiene copolymer, isoprene-styrene copolymer, methyl methacrylate- Sulfur vulcanizable rubber composition, characterized in that it is selected from the group consisting of isoprene copolymer, acrylonitrile-isoprene copolymer, acrylonitrile-butadiene copolymer, EPDM or mixtures thereof. 10. The sulfur vulcanizable rubber composition according to claim 9, wherein the sulfur vulcanizing agent is selected from the group consisting of elemental sulfur, amine disulfide, polymeric polysulfide or sulfur olefin adducts. The method of claim 9, wherein the promoter is selected from the group consisting of amines, disulfides, guanidines, thioureas, thiazoles, thiurams, sulfenamides, dithiocarbamates, xanthates or mixtures thereof. Sulfur vulcanizable rubber composition, characterized in that. ※ Note: The disclosure is based on the initial application.