The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2008
Filed:
Jan. 30, 2003
Solid catalyst component for polymerization of olefins, catalyst comprising the same and use thereof
Mingzhi Gao, Beijing, CN;
Haitao Liu, Beijing, CN;
Zhulan LI, Beijing, CN;
Jun Wang, Beijing, CN;
Juxiu Yang, Beijing, CN;
Tianyi LI, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Changxiu LI, Beijing, CN;
Chunming Ding, Beijing, CN;
Mingzhi Gao, Beijing, CN;
Haitao Liu, Beijing, CN;
Zhulan Li, Beijing, CN;
Jun Wang, Beijing, CN;
Juxiu Yang, Beijing, CN;
Tianyi Li, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Changxiu Li, Beijing, CN;
Chunming Ding, Beijing, CN;
Abstract
The present invention provides a solid catalyst component for the polymerization of olefins, comprising magnesium, titanium, a halogen and an electron donor, wherein said electron donor comprises at least one selected from the group consisting of ester of polyol of the formula (I):RCO—O—CRR—A—CRR—O—CO—R  (I)wherein, Rand Rgroups, which may be identical or different, can be substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R-Rgroups, which may be identical or different, can be selected from the group consisting of hydrogen, halogen or substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R-Rgroups optionally contain one or more hetero-atoms replacing carbon, hydrogen atom or the both, said hetero-atom is selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus and halogen atom, two or more of R-Rgroups can be linked to form saturated or unsaturated monocyclic or polycyclic ring A is a single bond or bivalent linking group with chain length between two free radicals being 1-10 atoms, wherein said bivalent linking group is selected from the group consisting of aliphatic, alicyclic and aromatic bivalent radicals, and can carry C-Clinear or branched substituents one or more of carbon atom and/or hydrogen atom on above-mentioned bivalent linking group and substituents can be replaced by a hetero-atom selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus, and halogen atom, and two or more said substituents on the linking group as well as above-mentioned R-Rgroups can be linked to form saturated or unsaturated monocyclic or polycyclic ring.