Aminoplast dispersions and polyurethanes prepared therefrom

Details Aminoplast dispersions and polyurethanes prepared therefrom Aminoplast dispersions and polyurethanes prepared therefrom

1980-02-25

1981-08-04

Hayes, Lorenzo B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 332R, 528229, 528232, C08K 505

Patent

active

042821355

ABSTRACT:
A stable dispersion of an aminoplast which is obtained by a process which comprises condensing ammonia hydrazine or an organic compound having a molecular weight of from about 50 to about 400 and which contains at least two groups selected from the group consisting of --NH.sub.2 and --NH-- with benzoquinone or a compound of the formula R--CO--R' in which R and R' stand for the same or different radicals selected from the group consisting of hydrogen C.sub.1 -C.sub.4 alkyl groups which may carry chlorine substituents, C.sub.2 -C.sub.4 -alkenyl groups, C.sub.6 -C.sub.10 aryl groups, C.sub.7 -C.sub.10 aralkyl groups, C.sub.5 -C.sub.10 cycloalkyl group and semi-acetals obtained by reacting said carbonyl compounds with monohydric or dihydric aliphatic alcohols having one to ten carbon atoms in an organic polyhydroxyl compound having a molecular weight of from about 250 to about 14000 as the reaction medium.

REFERENCES:
patent: 3304273 (1967-02-01), Stamberger

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