Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1995-08-11
1996-04-30
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526132, 526153, 526161, 526165, C08F 464, C08F 1208
Patent
active
055126430
ABSTRACT:
A process for preparing syndiotactic vinylidene aromatic polymers comprising contacting one or more vinylidene aromatic monomers with a catalyst comprising a Group 4 metal complex in the +3 oxidation state and a polyalkylaluminoxane cocatalyst.
REFERENCES:
patent: 4680353 (1987-07-01), Ishihara et al.
patent: 5066741 (1991-11-01), Campbell, Jr.
patent: 5340892 (1994-08-01), Kuramoto
Borodychuk Karen K.
Newman Thomas H.
Teskin Fred
The Dow Chemical Company
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