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:
Nov. 08, 2005
Filed:
Jan. 09, 2003
Kenichi Fukuda, Gunma-ken, JP;
Mikio Shiono, Gunma-ken, JP;
Kenichi Fukuda, Gunma-ken, JP;
Mikio Shiono, Gunma-ken, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A curable composition comprising: (A) a branched polyfluorodialkenyl compound represented by a general formula (1):CH═CH—(X)-Rf-(X')—CH═CH  (1)wherein, X and X′ are bivalent groups such as —CH— and —CHO—, a represents, independently, either 0 or 1, and Rfis a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2):Rf-(X′)—CH═CH  (2)wherein, X′ and a are as defined above, and Rfis a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.