Title:
鉄をベースにした触媒組成物及び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 JP5820025
Kind Code:
B2
Abstract:
A catalyst composition comprising (a) an iron-containing compound, (b) an organomagnesium compound and (c) a dihydrocarbyl hydrogen phosphite is disclosed for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene. The use of the catalyst composition of this disclosure avoids the use of environmentally detrimental components such as carbon disulfide and halogenated solvents. The melting temperature of the syndiotactic 1,2-polybutadiene can be varied from about 100 to about 190 DEG C by variations in the catalyst components and the component ratios. The ability to vary the melting temperature with a single catalyst composition is very desirable. 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
Application Number:
JP2014136586A
Publication Date:
November 24, 2015
Filing Date:
July 02, 2014
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
C08F4/70; C08F4/44; C08F4/50; C08F4/606; C08F4/80; C08F136/06
Domestic Patent References:
| JP43027749B1 | ||||
| JP45026305B1 | ||||
| JP45011154B1 |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office