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:
May. 21, 1996
Filed:
Apr. 12, 1995
Masachika Yoshino, Usui, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A curable silicone rubber composition contains (A) an organopolysiloxane raw rubber containing 0.01-1% by weight of vinyl and having a viscosity of 10.sup.3 -10.sup.6 poise at 25.degree. C., (B) an organopolysiloxane oil containing 0.1-10% by weight of vinyl and having a viscosity of 0.05-100 poise at 25.degree. C., (C) an organopolysiloxane copolymer composed mainly of a triorganosiloxy unit (M) and SiO.sub.2 unit (Q) in a molar ratio (M/Q) between 0.6 and 1.2 and containing 0.1-10% by weight of vinyl, (D) an organohydrogensiloxane containing at least three silylidyne groups, (E) a platinum catalyst, and (F) finely divided silica as essential components. The composition is hot air vulcanizable into a silicone rubber which is improved in hardness, modulus, tear strength and compression set.