Preparation of syndiotactic polybutadiene, rubber...

Details Preparation of syndiotactic polybutadiene, rubber... Preparation of syndiotactic polybutadiene, rubber...

2005-10-18

2005-10-18

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S084000, C526S136000, C526S142000, C525S236000, C525S237000, C525S247000, C525S261000, C525S313000, C528S490000

Reexamination Certificate

active

06956093

ABSTRACT:
The present invention relates to the preparation of syndiotactic 1,2-polybutadiene polymer using a catalyst containing a carbon disulfide in which the polymerizate thereof is treated with hydrogen peroxide, to preparation of a composite of conjugated diene-based elastomer and syndiotactic 1,2-polybutadiene polymer using a catalyst containing a carbon disulfide which the polymerizate thereof is treated with hydrogen peroxide, a rubber composition containing said syndiotactic 1,2-polybutadiene polymer and/or said composite and a tire having at least one rubber component thereof.

REFERENCES:
patent: 3778424 (1973-12-01), Sugiura, et al.
patent: 5283294 (1994-02-01), Hsu et al.
patent: 5307850 (1994-05-01), Halasa et al.

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