Process for preparation of syndiotactic vinylidene aromatic poly

Details Process for preparation of syndiotactic vinylidene aromatic poly Process for preparation of syndiotactic vinylidene aromatic poly

1993-10-08

1995-09-26

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526115, 526133, 526161, 526164, C08F 4642, C08F 1208

Patent

active

054534747

ABSTRACT:
A process for preparing syndiotactic vinylidene aromatic polymers comprising contacting one or more vinylidene aromatic monomers with a catalyst comprising a cationic Group 4 metal complex wherein the metal is in the +3 oxidation state formed from the corresponding metal hydrocarbyloxy containing complex in the presence of a hydrocarbylation agent.

REFERENCES:
patent: 4680353 (1987-07-01), Ishihara et al.
patent: 5066741 (1991-11-01), Campbell, Jr.
patent: 5189192 (1993-02-01), LaPointe et al.
patent: 5294685 (1994-03-01), Watanabe et al.

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