US 11,926,687 B2
Polar monomer grafted polypropylene resin, preparation method therefor and application thereof
Jinliang Qiao, Beijing (CN); Songhe Wang, Beijing (CN); Xiaohong Zhang, Beijing (CN); Guicun Qi, Beijing (CN); Zhihai Song, Beijing (CN); Chuanlun Cai, Beijing (CN); Xiang Wang, Beijing (CN); Jinmei Lai, Beijing (CN); Binghai Li, Beijing (CN); Haibin Jiang, Beijing (CN); Yue Ru, Beijing (CN); Jiangru Zhang, Beijing (CN); Jianming Gao, Beijing (CN); Hongbin Zhang, Beijing (CN); Peng Han, Beijing (CN); and Wenlu Liu, Beijing (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
Appl. No. 17/051,069
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
PCT Filed Apr. 26, 2019, PCT No. PCT/CN2019/084622
§ 371(c)(1), (2) Date Oct. 27, 2020,
PCT Pub. No. WO2019/206288, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 201810389316.2 (CN), filed on Apr. 27, 2018; and application No. 201810389343.X (CN), filed on Apr. 27, 2018.
Prior Publication US 2021/0246248 A1, Aug. 12, 2021
Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08F 255/02 (2006.01); C08G 61/04 (2006.01)
CPC C08F 255/02 (2013.01) 50 Claims
 
1. A grafted polypropylene resin,
comprising a polypropylene backbone having a plurality of side groups, each side group being obtained by grafting a polar monomer on the polypropylene backbone, and a grafting ratio of the polar monomer is 0.01-8%,
wherein the grafted polypropylene resin does not contain a residue of an initiator,
wherein the polar monomer is selected from the group consisting of organic acids, anhydrides, esters, and salts thereof, and
wherein a melt index of the grafted polypropylene resin is less than or equal to a melt index of a grafting base of the grafted polypropylene resin.