Polyvinyl alcohol esterified with lactic acid and process theref

Details Polyvinyl alcohol esterified with lactic acid and process theref Polyvinyl alcohol esterified with lactic acid and process theref

1993-02-12

1994-07-19

Seidleck, James J.

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

Synthetic resins

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

525 58, 525 62, C08L 2902, C08L 2904

Patent

active

053310454

ABSTRACT:
Polyvinyl alcohol esterified by lactic is produced by dissolving polyvinyl alcohol and lactic acid in water, and removing the water by volatilization at a temperature of 75.degree. C. to 175.degree. C. The lactic acid esterified polyvinyl alcohol is useful as a molding resin, and in films, fibers and adhesives.

REFERENCES:
patent: 3249572 (1966-05-01), Davis et al.
patent: 3749699 (1973-07-01), Apellaniz et al.
patent: 3821167 (1974-06-01), Asano
patent: 4249000 (1981-02-01), Batzer et al.

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