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:
Jul. 26, 2005
Filed:
Apr. 09, 2003
Zhigang Shen, Shanghai, CN;
Shang'an Lin, Shangai, CN;
Wenle Zhou, Shanghai, CN;
Fangming Zhu, Shanghai, CN;
Huiming Zhang, Shanghai, CN;
Zaiku Xie, Shanghai, CN;
Zhigang Shen, Shanghai, CN;
Shang'an Lin, Shangai, CN;
Wenle Zhou, Shanghai, CN;
Fangming Zhu, Shanghai, CN;
Huiming Zhang, Shanghai, CN;
Zaiku Xie, Shanghai, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Petrochemical Tech., Shanghai, CN;
Abstract
The present invention relates to a titanocene complex and a catalyst comprising the same and an alkylaluminoxane for preparing syndiotactic polystyrene. The catalyst is applicable to the industrial production of the syndiotactic polymerization of styrene. The titanocene complex has a general formula of RTi(ORR), where Ris Cp or Cp containing 1-5 Calkyls, Ris an aryl containing 6-12 carbon atoms, Ris a halogen, ORRis a halogenated aryloxy ligand.