Patent Number: 6,310,144

Title: Reinforced rubber article, production thereof and rubber composition suitable therefor

Abstract: A base rubber selected from natural rubber and diene rubber is blended with, based on 100 parts by weight of the base rubber, 0.5 to 5 parts by weight of a 2,2,4-trimethyl-1,2-dihydroquinoline polymer having a primary amine content of not more than 1% by weight, a monomer content of not more than 3% by weight and a dimer content of at least 30% by weight. The resulting rubber composition is vulcanized in contact with a reinforcing material such as an organic fiber or a steel cord. The rubber article thus obtained and reinforced with the reinforcing material is excellent in adhesiveness between the rubber and the reinforcing material, and further in thermal resistance.

Inventors: Inui; Naoki (Yamatokoriyama, JP), Nagasaki; Hideo (Osaka, JP), Yamaguchi; Tetsuo (Toyonaka, JP)

Assignee: Sumitomo Chemical Company, Limited

International Classification: C07D 215/00 (20060101); C07D 215/12 (20060101); C08K 5/00 (20060101); C08K 5/3437 (20060101); B32B 025/02 (); C08C 019/22 (); C08K 005/343 ()

Expiration Date: 10/30/2018