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:
Apr. 26, 2022
Filed:
Nov. 22, 2018
Applicant:
Nok Corporation, Tokyo, JP;
Inventors:
Daiki Takekawa, Kanagawa, JP;
Masahiro Yokoo, Fukushima, JP;
Assignee:
NOK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 27/12 (2006.01); C09K 3/10 (2006.01); F16J 15/08 (2006.01);
U.S. Cl.
CPC ...
C08L 27/12 (2013.01); C09K 3/1009 (2013.01); F16J 15/0818 (2013.01); C08L 2312/00 (2013.01); C09K 2200/0208 (2013.01); C09K 2200/0247 (2013.01); C09K 2200/0637 (2013.01);
Abstract
A gasket material comprising a crosslinked fluororubber layer having a micro-hardness of 5 to 25 formed on a metal plate using a fluororubber composition comprising 30 to 70 parts by weight of carbon black having a CTAB specific surface area of 3 to 34 m/g, and 5 to 15 parts by weight of hydrated amorphous silicon dioxide having a BET specific surface area of 35 to 220 m/g, based on 100 parts by weight of fluororubber, wherein the total amount of carbon black and hydrated amorphous silicon dioxide is 80 parts by weight or less.