China Petroleum & Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry

Tingjie Huang

Zifang Guo

Junling Zhou

Jie Fu

Rong Gao

Dongbing Liu

Xinyang Li

Shiyuan Xu

Jingjing Lai

Jie Lin

Xiaofan Zhang

Qingqiang Gou

Hui Zhao

Ting Huang

Dong Ma

Shijun Zhang

Wenbo Song

Hongtao Wang

Lunjia Xie

Zhufang Sun

Junhui Zhang

Jingyan An

Peng Kou

Hongxu Yang

Yuanning Gu

Bingyi Li

Meiyan Fu

Ruen Wang

Yonghua Ma

A preparation method for a copolymer includes the step(s) of contacting an olefin and an unsaturated carboxylic acid shown in Formula II or a derivative of the unsaturated carboxylic acid shown in Formula II with a catalyst and optionally a chain transfer agent for reaction in the presence of an alkane solvent to obtain the copolymer. The copolymer is a spherical and/or spherical-like copolymer.

Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative

A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.

Method for preparing olefin-polar monomer copolymer

The invention provides an olefin-olefinic alcohol copolymer and a preparation method thereof, said copolymer comprising a spherical and/or spherical-like polymer. The copolymer provided by the invention exhibits a good morphology and has good prospects in industrial use.

Olefin-olefinic alcohol copolymer, and preparation method therefor

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M, M, M, M, M, M, M', M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032; and M&#x2032; are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, &#x2014;Rand &#x2014;OR, wherein Rand Rare each independently a C-Chydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C-Calkoxy and heteroatoms; and wherein, when among M-Mand M&#x2032;-M&#x2032;, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of Rand &#x2014;OR, the two adjacent groups may optionally be linked to form a ring, with a proviso that M, M, M, M, M, M, M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032; and M&#x2032; are not simultaneously hydrogen. 

Olefin polymerization catalyst comprising cyclotriveratrylene and derivatives thereof

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Beijing, China

Tingjie Huang