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:
Jul. 18, 1989
Filed:
Feb. 16, 1988
Yoji Mori, Yokkaichi, JP;
Yoshiaki Kawamura, Yokkaichi, JP;
Hironori Matsumoto, Yokkaichi, JP;
Yasuhiko Takemura, Yokkaichi, JP;
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Abstract
An oil-resistant rubber composition comprising (A) 90 to 10 parts by weight of an unsaturated nitrile-conjugated diene rubber having a .DELTA.Tg of 58.degree. C. or more and an average bound nitrile content of 15 to 50% by weight, (B) 10 to 90 parts by weight of at least one rubber selected from the group consisting of an ethylene-propylene type copolymer rubber, a natural rubber and a polyisoprene and (C) 0 to 50 parts by weight, per 100 parts by weight of the total of (A) and (B), of at least one component (C) selected from the group consisting of a styrene polymer and a polyalkenamer. Said rubber composition is oil-resistant and excellent in mechanical properties such as tear strength, resistance to crack growth, etc.