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:
Dec. 10, 2013
Filed:
Oct. 28, 2011
Chao Wang, Beijing, CN;
Chuanqing LI, Beijing, CN;
Guozhu Yu, Beijing, CN;
Aimin Liang, Beijing, CN;
Jie Zhang, Beijing, CN;
Lin Xu, Beijing, CN;
Pengfei LV, Beijing, CN;
Huiling Liu, Beijing, CN;
Chao Wang, Beijing, CN;
Chuanqing Li, Beijing, CN;
Guozhu Yu, Beijing, CN;
Aimin Liang, Beijing, CN;
Jie Zhang, Beijing, CN;
Lin Xu, Beijing, CN;
Pengfei Lv, Beijing, CN;
Huiling Liu, Beijing, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Beijing Research Institute of Chemical Industry, Beijing, CN;
Abstract
Disclosed are catalyst compositions for isoprene polymerization formed from components comprising (A) at least one titanium halide; (B) at least one organic aluminum compound comprising at least one alkyl aluminum of formula AlR, wherein each of the three Rs is independently chosen from linear and branched Calkyl groups; and (C) at least one electron donor comprising at least one polyether compound of formula (I) and/or at least one tetrahydro-furfuryl ether compound of formula (II). Also disclosed are processes for preparation of the catalyst compositions and processes using the catalyst compositions for isoprene polymerization.