Gas-sparging of ethylene-vinyl ester interpolymers to suppress d

Details Gas-sparging of ethylene-vinyl ester interpolymers to suppress d Gas-sparging of ethylene-vinyl ester interpolymers to suppress d

1978-10-26

1980-04-29

Levin, Stanford M.

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

Synthetic resins

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

525 56, C08F 812

Patent

active

042007097

ABSTRACT:
Process for the production of partially-alcoholyzed ethylene-vinyl ester interpolymers by controlled alcoholysis of the base resins in which discoloration is suppressed by gas-sparging the base polymer in solution prior to alcoholysis.

REFERENCES:
patent: 3513142 (1970-05-01), Blumberg et al.
patent: 3697495 (1972-10-01), Bristol
patent: 3985719 (1976-10-01), Hoyt et al.

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