	US 11,795,251 B2
	Acrylic rubber and crosslinkable composition thereof
Daichi Toge, Ibaraki (JP); and Iwao Moriyama, Ibaraki (JP)
Assigned to UNIMATEC CO., LTD., Tokyo (JP)
Appl. No. 17/44,548
Filed by UNIMATEC CO., LTD., Tokyo (JP)
PCT Filed May 16, 2019, PCT No. PCT/JP2019/019561 § 371(c)(1), (2) Date Oct. 1, 2020, PCT Pub. No. WO2019/225481, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-099671 (JP), filed on May 24, 2018.
Prior Publication US 2021/0155729 A1, May 27, 2021
Int. Cl. C08F 220/18 (2006.01); C08F 220/28 (2006.01); C08F 220/22 (2006.01); C08K 3/06 (2006.01); C08K 5/3492 (2006.01); C08K 5/36 (2006.01)

CPC C08F 220/1804 (2020.02) [C08F 220/22 (2013.01); C08F 220/281 (2020.02); C08F 220/282 (2020.02); C08K 3/06 (2013.01); C08K 5/3492 (2013.01); C08K 5/36 (2013.01); C08F 2800/20 (2013.01)]

6 Claims

1. An acrylic rubber that is a copolymer in which 1.09 to 1.43 wt. % of vinyl monochloroacetate is copolymerized as a crosslinkable comonomer, wherein 55.7 to 61.2 wt. % of n-butyl acrylate, 12.0-32.6 wt. % of 2-methoxyethyl acrylate and 10.1 to 26.8 wt. % of ethoxyethoxyethyl acrylate are copolymerized in 100 wt. % of comonomers other than the vinyl monochloroacetate.