China Petroleum & Chemical Corporation

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

Other

Beijing Research Institute of Chemical Industry

Siyuan Zhao

Lunjia Xie

Zhufang Sun

Yu Tian

Mingzhi Gao

Tianyi Li

Zaixing Feng

Jing Yan Ma

Haitao Liu

Mingsen Zhang

Yu Kang

Changjiang Wu

Xiaodong Wang

Weiwei Song

Qing Hua Hu

Zhong Tan

Tianyi Zhang

Yongtai Ling

Xinsheng Wang

Qilong Zhou

Jinhua Yu

Shanshan Yin

Xiudong Xu

Fengkui Li

Li'an Yan

Hongbin Du

Zhibiao Hu

Disclosed is a solid catalyst component for olefin polymerization. The catalyst component comprises a dialkoxy magnesium carrier, a titanium compound, and a product from an internal electron donor reacting in an inert solvent. The internal electron donor compound comprises a 2,3-di-non-linear-alkyl-2-cyano succinic acid diester compound as presented in formula I.

Solid catalyst component and catalyst for olefin polymerization

A process for preparing 2,3-di(non-linear-alkyl)-2-cyanosuccinate compounds, especially 2,3-diisopropyl-2-cyanosuccinate compounds, and processes for preparing 2,3-di(non-linear-alkyl)succinic acids and esters thereof by using the 2,3-di-non-linear propyl-2-cyanosuccinate compounds as intermediates are disclosed.

Process for preparing 2,3-di-non-straight-alkyl-2-cyanosuccinic acid diesters

A catalyst component for olefin polymerization comprising an &#x3b1;-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.

Catalyst component for olefin polymerization and a catalyst comprising the same

The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield. wherein R-Rgroups are as defined in the description.

Silicon ether compounds and a method for the preparation thereof

The present invention discloses cyclopentane carboxylate compounds. The 1-hydrocarbyl-2-acyloxy-cyclopentane carboxylates according to the invention have a general formula (I): wherein groups R, Rand R, which are identical or different, are independently selected from the group consisting of linear or branched C-Calkyl, C-Ccycloalkyl, C-Caryl, C-Calkaryl and C-Caralkyl. The present invention also discloses a process as well as intermediate compounds for preparing the compounds of formula (I), and use of the compounds (I) as electron donor in the preparation of catalysts for propylene polymerization.

Cyclopentane carboxylate compounds, process and intermediates for preparing the same and use thereof

The present application discloses a catalyst for olefin polymerization, comprising a product of the following components: (A) solid titanium-containing catalyst component comprising magnesium, titanium and halogen as essential components; (B) organo-aluminum compound catalyst component, and (C) silicon ether compound catalyst component, the silicon ether compound being represented by a general formula (I): wherein

Catalyst for olefin polymerization and use of the same

Silicon ether compound, a method for the preparation thereof and use thereof

Growing community of inventors

Beijing, China

Siyuan Zhao