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:
Dec. 19, 2000
Filed:
Feb. 27, 1998
Noriyuki Meguriya, Usui-gun, JP;
Susumu Sekiguchi, Usui-gun, JP;
Syuuichi Azechi, Usui-gun, JP;
Takeo Yoshida, Usui-gun, JP;
Abstract
A silicone rubber composition contains (A) 100 parts by weight of an organopolysiloxane composition of the organic peroxide or addition reaction curing type, (B) 20-400 parts by weight of aluminum hydroxide, and (C) 1-20 parts by weight of an organopolysiloxane of formula (I): R.sup.1.sub.a (OX).sub.b SiO.sub.(4-a-b)/2 wherein R.sup.1 is a monovalent hydrocarbon group, at least 10 mol % of the R.sup.1 groups being phenyl, X is hydrogen or a monovalent hydrocarbon group, a and b are positive numbers satisfying the range: 1.0.ltoreq.a<2.0, 1<a+b.ltoreq.3, and 0.001.ltoreq.b/(a+b).ltoreq.0.8. The composition cures into a silicone rubber having improved high-voltage electrical insulating properties even under humid conditions.