Patent ID: 8722806

Claim:
A rubber composition, comprising: a rubber component made of at least one of diene-based polymer; and a copolymer resin obtained by copolymerizing a monomer (I) represented by formula (I) below and an indene, wherein the rubber composition contains, with respect to 100 parts by mass of the rubber component, 1 to 100 parts by mass of a copolymer resin obtained by copolymerizing “a” mass % of the monomer (I) and “b” mass % of said indene such that a and b satisfy formulae (II) to (IV) below: 5 ≦a< 95 (II) 1 <b≦ 95 (III) 90 <a+b≦ 100 (IV) wherein R represents a C 1 -C 8 normal or branched alkyl group, X 1 represents a hydrogen atom or a C 1 -C 8 normal or branched alkyl group, an aryl group having a substitution group, or a halogen group, and R and X 1 may be either the same or different.