Catalysts for polymerization of isoprene and preparations and uses thereof

US8604143B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• SINOPEC (BEIJING) RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD. · CN

Inventors

• Chao Wang · Baltimore, US
• Chuanqing Li · Nanhu, CN
• Guozhu Yu · Beijing, CN
• Aimin Liang · Beijing, CN
• Jie Zhang · Beijing, CN
• Lin Xu · Zhoushan City, CN
• Pengfei Lv · Beijing, CN
• Huiling Liu · Trondheim, NO

Key dates

• Filing date: Oct 28, 2011
• Grant date: Dec 10, 2013
• Expiry date: Oct 28, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F36/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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 AlR3, wherein each of the three Rs is independently chosen from linear and branched C1-6 alkyl 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.