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:
Apr. 09, 1996
Filed:
Dec. 02, 1994
Masaharu Takahashi, Gunma, JP;
Naoki Omura, Gunma, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
An improvement is proposed for an acrylic rubber composition to decrease the stickiness of the rubber composition under processing and shaped and vulcanized articles of the composition to a metallic surface with which the rubber article is kept in contact at an elevated temperature under compression as is the case in packings, gaskets and O-rings as automobile parts. The improvement can be obtained by compounding the rubber composition consisting of an acrylic rubbery polymer, which can be substituted by organosilicon groups, and a reinforcing filler with a limited amount of a specific diorganopolysiloxane, e.g., dimethyl polysiloxane, of which from 5 to 50% in number of the organic groups bonded to the silicon atoms are phenyl groups.