	US 11,897,988 B2
	Hydrogenated styrene/conjugated diolefin copolymer, foaming material thereof, and application thereof
Hongwen Liang, Beijing (CN); Xiaojun Mo, Beijing (CN); Wangming Li, Beijing (CN); Chaozhou Liu, Beijing (CN); Fan Yang, Beijing (CN); Zheng Kang, Beijing (CN); Xu Wang, Beijing (CN); and Zhenyin She, Beijing (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
Appl. No. 17/286,919
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
PCT Filed Oct. 29, 2019, PCT No. PCT/CN2019/114015 § 371(c)(1), (2) Date Apr. 20, 2021, PCT Pub. No. WO2020/088454, PCT Pub. Date May 7, 2020.
Claims priority of application No. 201811281317.1 (CN), filed on Oct. 30, 2018.
Prior Publication US 2021/0371564 A1, Dec. 2, 2021
Int. Cl. A43B 13/04 (2006.01); C08F 236/06 (2006.01); C08F 236/10 (2006.01); C08F 8/04 (2006.01); C08J 9/12 (2006.01)

CPC C08F 236/10 (2013.01) [C08J 9/122 (2013.01); C08J 2203/06 (2013.01); C08J 2309/06 (2013.01)]

19 Claims

1. A hydrogenated styrene/conjugated diolefin copolymer, wherein the copolymer comprises a styrene-based structural unit represented by Formula 1, a hydrogenated conjugated diene-based structural unit represented by Formula 2, and a hydrogenated conjugated diene-based structural unit represented by Formula 3,

wherein R₁, R₂, R₃, R₄, R₅, R₆, R₇, R₈, and R₉are respectively H, C1-C3 alkyl, and R₁₀is H or C1-C4 alkyl; the content of the styrene-based structural unit is 15-50 wt %, based on the total amount of the copolymer; the content of the hydrogenated conjugated diene-based structural unit represented by Formula 3 is 8-32 wt %, based on the total amount of the hydrogenated conjugated diene-based structural unit represented by Formula 2 and the hydrogenated conjugated diene-based structural unit represented by Formula 3, the randomness degree of the styrene-based structural unit in the hydrogenated conjugated diene-based structural unit is 30-80%, and the hydrogenation degree of the conjugated diolefin in the copolymer is 85-100%.