Provided is a rubber composition for tire tread containing: a diene rubber; silica in the amount of 60-200 parts by weight with respect to 100 parts by mass of the rubber; a polysiloxane represented by Formula: (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2 (the formula is an averaged compositional formula in which A represents a bivalent organic group containing a sulfide group, B represents a C5-10 monovalent hydrocarbon group, C represents a hydrolyzable group, D represents an organic group including a mercapto group, R1 represents a C1-4 monovalent hydrocarbon group, and a-e satisfy the relational formulae 0<=a<1, 0<=b<1, 0<=e<2, and 0<2a+b+c+d+e<4, with the caveat that either a or b is not 0.); and an alkyl triethoxysilane containing a C7-20 alkyl group. Also provided is a pneumatic tire using this rubber composition in the tire tread.
RUBBER COMPOSITION FOR TIRE TREAD, AND PNEUMATIC TIRE USING SAME
2015-10-28
Patent
Electronic Resource
English
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
Rubber composition for tire tread, and pneumatic tire using same
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|RUBBER COMPOSITION FOR TIRE TREAD, AND PNEUMATIC TIRE USING SAME
European Patent Office | 2015
|