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:
Apr. 26, 2016
Filed:
Oct. 18, 2010
Weili LI, Beijing, CN;
Xianzhi Xia, Beijing, CN;
Yuexiang Liu, Beijing, CN;
Jigui Zhang, Beijing, CN;
Suzhen Qiao, Beijing, CN;
Jin Zhao, Beijing, CN;
Ping Gao, Beijing, CN;
Xinsheng Wang, Beijing, CN;
Yang Tan, Beijing, CN;
Zhihui Zhang, Beijing, CN;
Linna Yang, Beijing, CN;
Ruilin Duan, Beijing, CN;
Renqi Peng, Beijing, CN;
Weili Li, Beijing, CN;
Xianzhi Xia, Beijing, CN;
Yuexiang Liu, Beijing, CN;
Jigui Zhang, Beijing, CN;
Suzhen Qiao, Beijing, CN;
Jin Zhao, Beijing, CN;
Ping Gao, Beijing, CN;
Xinsheng Wang, Beijing, CN;
Yang Tan, Beijing, CN;
Zhihui Zhang, Beijing, CN;
Linna Yang, Beijing, CN;
Ruilin Duan, Beijing, CN;
Renqi Peng, Beijing, CN;
Abstract
A spheric magnesium compound comprises a reaction product of at least the following components: (a) a magnesium halide having a formula of MgXR, wherein X is independently chloride or bromide, R is a C-Calkyl, a C-Caryl, a C-Calkoxy, or a C-Caryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound having a general formula (I), wherein Rand Rare independently hydrogen, a C-Clinear or branched alkyl, or a C-Clinear or branched haloalkyl. The magnesium compound has characteristic DSC curve and X-ray diffraction pattern, and can be used as a carrier for olefin polymerization catalyst.