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. 02, 2001
Filed:
Jun. 17, 1999
Akio Nakano, Usui-gun, JP;
Takeshi Hashimoto, Usui-gun, JP;
Shin Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
Silicone rubber parts having a high thermal conductivity and low hardness are obtained by molding and curing a composition comprising (A) 100 parts by weight of an alkenyl-bearing organopolysiloxane having a viscosity of up to about 500,000 centistokes at 25° C., (B) 300-1,200 parts by weight of aluminum oxide powder, (C) 0.05-10 parts by weight of an alkoxysilane of the formula: R,Si(OR,),wherein R,is a monovalent C,hydrocarbon group, R,is a C,alkyl group, and a=1, 2 or 3, (D) a platinum group metal catalyst, and (E) an organohydrogenpolysiloxane containing at least two SiH groups in a molecule. The composition is formulated so as to suppress the viscosity increase of a liquid silicone rubber composition due to heavy loading of aluminum oxide.