US 12,410,273 B2
Comb-block copolymers and methods thereof
Shanshan Zhang, Houston, TX (US); Peijun Jiang, Katy, TX (US); Ying Ying Sun, Shanghai (CN); Yujie Sheng, Shanghai (CN); Saifudin M. Abubakar, Shanghai (CN); Guangdi Chen, Shanghai (CN); and Hongchao Wang, Shanghai (CN)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Appl. No. 17/905,222
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
PCT Filed Mar. 15, 2021, PCT No. PCT/US2021/022358
§ 371(c)(1), (2) Date Aug. 29, 2022,
PCT Pub. No. WO2021/202091, PCT Pub. Date Oct. 7, 2021.
Claims priority of provisional application 63/001,828, filed on Mar. 30, 2020.
Claims priority of provisional application 63/001,842, filed on Mar. 30, 2020.
Prior Publication US 2023/0118464 A1, Apr. 20, 2023
Int. Cl. C08F 293/00 (2006.01); C08L 53/00 (2006.01)
CPC C08F 293/00 (2013.01) [C08L 53/00 (2013.01); C08F 2420/09 (2021.01)] 30 Claims
 
1. A copolymer comprising:
a first block comprising an ethylene-propylene copolymer; and
a second block comprising a high density polyethylene.