Amine functional polymers containing acetal groups

Details Amine functional polymers containing acetal groups Amine functional polymers containing acetal groups

1990-05-17

1992-02-04

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 60, C08F 800

Patent

active

050861115

ABSTRACT:
Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals, and polyvinylacetals are useful as flocculants and epoxy resin and polyurethane crosslinking agents and are provided by reacting a poly(vinylamine) or a copolymer containing vinyl alcohol and vinylamine units with a monoaldehyde. The aldehyde, such as butyraldehyde, can be introduced in the polymer acetalization as a liquid or gas, generally in a proportion of about 0.02 to 0.5 mol per mol of alcohol and amine units in the polymer chain.

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: 4774285 (1988-09-01), Pfohl et al.
patent: 4843118 (1989-06-01), Lai et al.
Lindemann, "Encylopedia of Chemical Technology", Kirk-Othmer, vol. 14, pp. 208-239 (1971).

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