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:
May. 06, 2014
Filed:
Oct. 15, 2008
Yuefeng Gu, Nanjing, CN;
Xiaoli Yao, Nanjing, CN;
Chuanfeng LI, Nanjing, CN;
Zhonglin MA, Nanjing, CN;
Feng Guo, Nanjing, CN;
BO Liu, Nanjing, CN;
Yaming Wang, Nanjing, CN;
Shaohui Chen, Nanjing, CN;
Xiaoqiang LI, Nanjing, CN;
Jiye Bai, Nanjing, CN;
Yuefeng Gu, Nanjing, CN;
Xiaoli Yao, Nanjing, CN;
Chuanfeng Li, Nanjing, CN;
Zhonglin Ma, Nanjing, CN;
Feng Guo, Nanjing, CN;
Bo Liu, Nanjing, CN;
Yaming Wang, Nanjing, CN;
Shaohui Chen, Nanjing, CN;
Xiaoqiang Li, Nanjing, CN;
Jiye Bai, Nanjing, CN;
Sinopec Yangzi Petrochemical Company Ltd., Nanjing, Jiangsu Province, CN;
Abstract
The present invention relates to a magnesium compound-supported nonmetallocene catalyst, which is produced by directly contacting a catalytically active metallic compound with a nonmetallocene ligand-containing magnesium compound, or by directly contacting a nonmetallocene ligand with a catalytically active metal-containing magnesium compound, through an in-situ supporting process. The process is simple and flexible. In the process, there are many variables in response for adjusting the polymerization activity of the catalyst, and the margin for adjusting the catalyst load or the catalyst polymerization activity is broad. The magnesium compound-supported nonmetallocene catalyst according to this invention can be used for olefin homopolymerization/copolymerization, in combination with a comparatively less amount of the co-catalyst, to achieve a comparatively high polymerization activity. Further, the polymer product obtained therewith boasts high bulk density and adjustable molecular weight distribution.