Process of preparing butadiene-styrene copolymer with nickel com

Details Process of preparing butadiene-styrene copolymer with nickel com Process of preparing butadiene-styrene copolymer with nickel com

1993-04-19

1994-07-26

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526160, 526161, 526165, 526340, 502117, C08F 452, C08F23610

Patent

active

053327942

ABSTRACT:
A process is provided for preparing butadiene-styrene copolymers having cis-1,4 configuration of at least 80% of butadiene units, bound styrene contents of 2 to 55% and no homopolystyrene. The copolymers are prepared with a new catalyst system having high polymerization activity. The process involves carrying out polymerization of butadiene monomer and styrene monomer in the presence of the new catalyst system which is comprised of a nickel compound and an alkylaluminoxane compound.

REFERENCES:
patent: 3170904 (1965-02-01), Ueda et al.
patent: 3639520 (1972-02-01), Onishi et al.
patent: 3640989 (1972-02-01), Throckmorton
patent: 4054612 (1977-10-01), Yagi et al.
Kogyo Kagaku Zasshi, 72:2081 (1969).

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