Process of rendering copolymers of maleic anhydride and alkyl vi

Details Process of rendering copolymers of maleic anhydride and alkyl vi Process of rendering copolymers of maleic anhydride and alkyl vi

1989-03-13

1990-02-13

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528501, 526271, 521 98, 521149, C08F 624, C08F22206

Patent

active

049008099

ABSTRACT:
Substantially benzene-free copolymers of maleic anhydride and alkyl vinyl ethers having benzene present in an amount of less than about 1 ppm and an alkyl-substituted aromatic hydrocarbon present in an amount of about 2.0 wt. % or less, and a process for rendering a copolymer reaction product of maleic anhydride and an alkyl vinyl ether prepared in benzene solution substantially benzene-free, is described herein.

REFERENCES:
patent: 3632561 (1972-01-01), Gibb
patent: 4532320 (1985-07-01), Denzinger et al.

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