Two-phase process for preparing poly(vinyl alcohol)-co-poly(viny

Details Two-phase process for preparing poly(vinyl alcohol)-co-poly(viny Two-phase process for preparing poly(vinyl alcohol)-co-poly(viny

1992-01-02

1993-03-16

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...

525 61, 5253282, 5263074, C08F 800

Patent

active

051944928

ABSTRACT:
Vinyl acetate and an N-vinyl formamide are copolymerized to yield poly(vinyl acetate)-co-poly(N-vinyl formamide) which is base hydrolyzed to poly(vinyl alcohol)-co-poly(N-vinyl formamide). Two phase hydrolysis of particles of poly(vinyl alcohol)-co-poly(N-vinyl formamide) as a slurry in methanol yields particles of poly(vinyl alcohol)-co-poly(vinylamine).
Provided is a copolymer of the following general formula ##STR1## where m is 0 to 15 mole %,

REFERENCES:
patent: 4393174 (1983-07-01), Dawson et al.
patent: 4421602 (1983-12-01), Brunnmueller et al.
patent: 4490557 (1984-12-01), Dawson et al.
patent: 4772359 (1988-09-01), Liphart et al.
patent: 4774285 (1988-09-01), Pfohl et al.
R. W. Stackman et al., Ind. Engr. Chem Prod.Res. Dev. 1985, 24, 242.
R. H. Summerville, et al., Polymer Reprints 24, 12 (1983).
W. M. Brower et al., J. Polym. Sci Polym Chem Ed, 1984, 22, 2359.

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