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:
Mar. 02, 2010
Filed:
Feb. 10, 2006
Applicants:
Kenichi Fukuda, Usui-gun, JP;
Mikio Shiono, Usui-gun, JP;
Hiroyasu Hara, Usui-gun, JP;
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Curable perfluoropolyether rubber compositions are provided comprising (A) a linear perfluoropolyether compound containing at least two alkenyl groups and having a perfluoropolyether structure containing recurring units —CFO— in its backbone, (B) an organosilicon compound containing at least two SiH groups, (C) an inorganic powder capable of chemical and/or physical adsorption of acidic gases and/or sulfur-containing gases, and (D) a hydrosilylation catalyst. The compositions cure into rubber or gel products having minimal permeability to acidic gases and sulfur-containing gases.