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:
Jan. 25, 2011
Filed:
Oct. 21, 2005
Houliang Dai, Nanjing, CN;
Houping You, Nanjing, CN;
Chuanfeng LI, Nanjing, CN;
Xiaoli Yao, Nanjing, CN;
Lijin Zhou, Nanjing, CN;
Xiaoqiang LI, Nanjing, CN;
Yarning Wang, Nanjing, CN;
Zhonglin MA, Nanjing, CN;
Jiye Bai, Nanjing, CN;
Houliang Dai, Nanjing, CN;
Houping You, Nanjing, CN;
Chuanfeng Li, Nanjing, CN;
Xiaoli Yao, Nanjing, CN;
Lijin Zhou, Nanjing, CN;
Xiaoqiang Li, Nanjing, CN;
Yarning Wang, Nanjing, CN;
Zhonglin Ma, Nanjing, CN;
Jiye Bai, Nanjing, CN;
Yangzi Petrochemical Company Co., Ltd., Nanjing, Jiangsu, CN;
Abstract
The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method. The present invention further relates to the use of the supported nonmetallocene olefin polymerization catalyst in an olefin polymerization and an olefin copolymerization between two or more different olefins. In one specific embodiment, the present invention relates to the use of the supported nonmetallocene olefin polymerization catalyst in a slurry ethylene polymerization. The present invention provides a new type of catalyst that improves the polymer morphology, increases polymer bulk density and enhances polymerization activity.