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:
May. 20, 2025
Filed:
Dec. 12, 2019
Applicant:
Nichias Corporation, Tokyo, JP;
Inventors:
Chisato Hasegawa, Tokyo, JP;
Kojiro Otani, Tokyo, JP;
Assignee:
NICHIAS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 3/10 (2006.01); C08J 3/24 (2006.01); C08K 3/04 (2006.01); C08K 5/03 (2006.01); F16J 15/3284 (2016.01);
U.S. Cl.
CPC ...
C09K 3/1009 (2013.01); C08J 3/24 (2013.01); C08K 3/04 (2013.01); C08K 5/03 (2013.01); F16J 15/3284 (2013.01); C08J 2327/18 (2013.01); C09K 2003/1078 (2013.01); C09K 2200/0208 (2013.01); C09K 2200/0637 (2013.01);
Abstract
A composition comprising a perfluoroelastomer, carbon black in an amount of 55 to 75 parts by weight per 100 parts by weight of the perfluoroelastomer, and a crosslinking agent represented by the following formula (1): wherein in the formula (1), A is a single bond, —O—, an alkylene group, or a fluoroalkylene group; R, R, and Rare independently a hydrogen atom, a fluorine atom, an alkyl group, or a fluoroalkyl group; and provided that at least one of R, R, and Ris a fluorine atom or a fluoroalkyl group.