Preparation of refined olefin/maleic acid copolymers

Details Preparation of refined olefin/maleic acid copolymers Preparation of refined olefin/maleic acid copolymers

1977-12-23

1979-09-04

Kight, III, John

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

Synthetic resins

Treating polymer containing material or treating a solid...

424 78, 526317, C08F 612, C08F22202, A61K 3119

Patent

active

041669002

ABSTRACT:
Olefin/maleic acid copolymer is refined to pharmaceutical quality by use of dichloroethane to remove contaminants, as by precipitating from solution with dichloroethane.

REFERENCES:
patent: 3560457 (1971-02-01), Hazen et al.
patent: 3729450 (1973-04-01), Galiano et al.
patent: 3729451 (1973-04-01), Blecke et al.

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