Process for producing poly (vinyl acetals)

Details Process for producing poly (vinyl acetals) Process for producing poly (vinyl acetals)

1984-07-30

1985-09-03

Michl, Paul R.

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

Synthetic resins

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

C08F 1606

Patent

active

045393699

ABSTRACT:
An improved method for the production of poly (vinyl acetals) using no added catalyst comprises mixing poly (vinyl alcohol) and an excess amount of aldehyde to produce poly (vinyl acetals), wherein the reaction is driven by removal of water in the form of an aldehyde-water azeotrope.

REFERENCES:
patent: 2143228 (1939-01-01), Orthner

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