Refining olefin/maleic acid copolymers by extraction with alkane

Details Refining olefin/maleic acid copolymers by extraction with alkane Refining olefin/maleic acid copolymers by extraction with alkane

1979-12-26

1981-10-06

Henderson, C. A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

424 78, 525328, 525355, 528498, C08F 842, C08F 610, C08F 600

Patent

active

042936683

ABSTRACT:
Olefin/maleic acid copolymer is refined to pharmaceutical quality by extraction of contaminants with hexane or heptane.

REFERENCES:
patent: 3318851 (1967-05-01), Nicholls
patent: 3461108 (1969-08-01), Heilman
patent: 3560456 (1971-02-01), Hazen
patent: 4121026 (1978-10-01), Cheng
patent: 4157431 (1979-06-01), Fields

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