Process for the ammonium hydroxide hydrolysis of polymers of ace

Details Process for the ammonium hydroxide hydrolysis of polymers of ace Process for the ammonium hydroxide hydrolysis of polymers of ace

1986-09-29

1987-07-07

Schofer, Joseph L.

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

Synthetic resins

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

5253295, 525383, C08F 812

Patent

active

046788433

ABSTRACT:
Polymers of 4-acetoxystyrene are hydrolyzed to polymers of p-vinylphenol with ammonium hydroxide followed by sparging with carbon dioxide. Such polymers are useful in photoresist and as protective coatings for metal.

REFERENCES:
patent: 2276138 (1945-03-01), Alderman et al.
patent: 3547858 (1970-12-01), Worrall
patent: 3963662 (1976-06-01), Fujiwara et al.
patent: 3970534 (1976-07-01), Fujiwara et al.
patent: 4129617 (1978-12-01), Machi et al.
patent: 4544704 (1985-10-01), Hefner, Jr.

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