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:
Aug. 01, 2000
Filed:
Apr. 28, 1997
Applicant:
Inventors:
Assignee:
Toshiba Silicone Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 94 ;
Abstract
A silicone rubber sponge composition obtained by compounding a polyorganosiloxane having an average degree of polymerization of 3,000 to 300,000, a reinforcing silica filler, 1,1'-azo-bis(1-acetoxy-1-phenylethane) as a foaming agent, and organic peroxides and/or addition reaction curing agents. The silicone rubber sponge composition can provide a silicone rubber sponge which has a high foaming ratio, has a fine and uniform cell structure, has excellent surface smoothness of the skin layer, does not show a surface tackiness, has a good compression set, and does not require a post cure of a long time.