Styrene copolymer and process for production thereof

Details Styrene copolymer and process for production thereof Styrene copolymer and process for production thereof

1993-07-09

1995-02-21

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526160, 526165, 526262, 526293, 526342, C08F21210, C08F21214

Patent

active

053916719

ABSTRACT:
A styrene copolymer which comprises a styrene repeating unit (a) represented by the general formula (I): ##STR1## and an acrylonitrile repeating unit (b) represented by the general formula (II-(b)): ##STR2## unsaturated carboxylic acid or its ester repeating unit (c) represented by the general formula (II-(c)): ##STR3## or maleimide or N-substituted maleimide (d) represented by the general formula (II-(d)): ##STR4## (in the formula, symbols are the same as defined in the specification) wherein stereoregularity of the styrene repeating unit (a) chain is a high degree of syndiotactic configuration is disclosed.

REFERENCES:
patent: 4978730 (1990-12-01), Maezawa et al.
patent: 5317069 (1994-05-01), Chiang et al.

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