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. 11, 2025
Filed:
Jun. 24, 2020
Applicant:
Zeon Corporation, Tokyo, JP;
Inventor:
Fumiaki Bando, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/14 (2006.01); C08F 220/18 (2006.01); C08F 222/04 (2006.01); C08K 5/00 (2006.01); C08K 5/3415 (2006.01); C08K 5/41 (2006.01); C08K 5/46 (2006.01);
U.S. Cl.
CPC ...
C08F 220/1804 (2020.02); C08F 220/14 (2013.01); C08F 222/04 (2013.01); C08K 5/005 (2013.01); C08K 5/3415 (2013.01); C08K 5/41 (2013.01); C08K 5/46 (2013.01);
Abstract
An acrylic rubber composition includes an acrylic rubber and a specific antioxidant, wherein the acrylic rubber includes 15 to 55% by weight of methacrylic acid alkyl ester monomer units (a), 44.5 to 84.5% by weight of acrylic acid ester monomer units (b), and 0.5 to 4% by weight of carboxyl group-containing monomer units (c), and the content of the antioxidant is 0.1 to 5 parts by weight relative to 100 parts by weight of the acrylic rubber.