Patent ID: 6875807

Claim:
A vulcanizable rubber composition comprising (a) a rubber component, (b) a methylene donor compound which generates formaldehyde by heating; and (c) a methylene acceptor comprising a silane-modified phenolic resin obtained by the process comprising reacting a phenolic novolak resin with a silane or a mixture of silane compounds represented by Formula (C), (D), or (E): wherein R 6 , R 7 and R 8 are independently an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 8 carbon atoms, phenyl group, cycloalkyl group; R 9 is a divalent saturated or unsaturated aliphatic straight or branched hydrocarbon group with 1 to 12 carbon atoms; X is a thiol, amino, isocyanato, urea or glycidylether group; Z is S x or a NH group, wherein x is 1, 2, 3, 4, 5, 6, 7, or 8; and R 10 is a vinyl group or an alkoxy group.