Title:
クロム系の触媒系を用いるシンジオタクチック1,2-ポリブタジエンの製造方法
Document Type and Number:
Japanese Patent JP4231603
Kind Code:
B2
Abstract:
A process for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene is described using a catalyst system comprising (a) a chromium-containing compound, (b) an organoaluminum hydride, and (c) a hydrogen phosphite. The use of the catalyst system avoids the use of environmentally detrimental components such as carbon disulfide and halogenated solvents. The syndiotactic 1,2-polybutadiene can be used as a plastic or as an additive for rubber compositions wherein it can crosslink with conventional rubbers using conventional crosslinking agents.
Inventors:
Stephen Luo
Michael dubriyou haze
Dennis Earl Brambeau
Michael dubriyou haze
Dennis Earl Brambeau
Application Number:
JP29106399A
Publication Date:
March 04, 2009
Filing Date:
October 13, 1999
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
C08F2/38; C08F4/69; C08F36/06; C08F136/06
Domestic Patent References:
| JP48006939B1 | ||||
| JP48064178A | ||||
| JP11255817A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office
Heigo Odashima
Heigo Odashima