The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 1990
Filed:
Jul. 14, 1988
Noboru Shimada, Yokkaichi, JP;
Iwakazu Hattori, Aichi, JP;
Mitsuhiko Sakakibara, Matsudo, JP;
Noboru Oshima, Suzuka, JP;
Tatsuro Hamada, Higashimurayama, JP;
Hiromi Fukuoka, Kodaira, JP;
Tatsuo Fujimaki, Higashimurayama, JP;
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A rubber composition comprising not less than 20% by weight of an amino group-containing diene based polymer in a rubber component, and 10 to 100 parts by weight of silica as a filler with respect to 100 parts by weight of the rubber component. The amino group-containing diene based polymer is obtained by polymerizing a monomer or copolymerizing the monomer in an organic solvent in the presence of at least one of an organic alkali metal and an organic alkaline earth metal.