Process for the preparation of copolymers of maleic anhydride an

Details Process for the preparation of copolymers of maleic anhydride an Process for the preparation of copolymers of maleic anhydride an

1992-07-13

1993-02-23

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526271, 526332, C08F 200

Patent

active

051891220

ABSTRACT:
A copolymer of maleic anhydride and an alkyl vinyl ether is prepared with substantially reduced benzene content by first contacting the alkyl vinyl ether with activated charcoal and then reacting together the charcoal treated alkyl vinyl ether and maleic anhydride in the presence of a free radical initiator.

REFERENCES:
patent: 4962185 (1990-10-01), Tazi et al.
patent: 5012037 (1991-04-01), Doshi et al.

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