Process for producing a styrene polymer having high degree of sy

Details Process for producing a styrene polymer having high degree of sy Process for producing a styrene polymer having high degree of sy

1991-12-02

1993-12-21

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526132, 526133, 526148, 526151, 526159, 526160, 5263472, 502113, C08F 1208

Patent

active

052722295

ABSTRACT:
There are disclosed a process for producing a styrene polymer having a high degree of syndiotactic configuration at a reduced cost and an enhanced efficiency, and a catalyst to be used therefore which comprises (A) a specific transition-metal compound, (B) a specific coordination complex compound and (C) a compound having an alkyl group.
The catalyst according to the present invention is inexpensive compared with the conventional catalyst containing aluminoxane as the major ingredient, and exhibits a high activity in polymerizing a styrenic monomer into styrene polymer with a high degree of syndiotacticity as well as a high yield and conversion rate.

REFERENCES:
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5066741 (1991-11-01), Campbell, Jr.
Hackh's Chemical Dictionary, 4th ed., McGraw-Hill Inc., N.Y., p. 62 (1969).

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