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:
Jan. 09, 2024
Filed:
Apr. 20, 2020
Applicant:
Unimatec Co., Ltd., Tokyo, JP;
Inventor:
Daichi Toge, Ibaraki, JP;
Assignee:
UNIMATEC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/26 (2006.01); C08F 220/28 (2006.01); C08F 220/18 (2006.01); C08K 5/31 (2006.01); C09K 3/10 (2006.01);
U.S. Cl.
CPC ...
C08F 220/283 (2020.02); C08F 220/1804 (2020.02); C08F 220/281 (2020.02); C08F 220/286 (2020.02); C08K 5/31 (2013.01); C09K 3/1006 (2013.01); C09K 2200/0625 (2013.01); C09K 2200/0642 (2013.01);
Abstract
An acrylic rubber that is a copolymer in which 1 to 3 wt. % of a fumaric acid monoalkyl ester monomer containing an alkyl group having 1 to 8 carbon atoms is copolymerized as a crosslinkable comonomer, wherein 45 to 65 wt. % of n-butyl acrylate, 12 to 32 wt. % of 2-methoxyethyl acrylate, and 11 to 30 wt. % of ethoxyethoxyethyl acrylate are copolymerized in 100 wt. % of comonomers other than the crosslinkable comonomer. This acrylic rubber can suppress the reduction of oil resistance while improving cold resistance represented by a TR-10 value.