Aminoplast dispersions and polyurethanes prepared therefrom

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

1974-04-25

1980-09-30

Welsh, Maurice J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528232, C08L 6120

Patent

active

042254817

ABSTRACT:
A stable dispersion of an aminoplast which is obtained by a process which comprises condensing ammonia, hydrazine or a 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 groups or 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: 2839484 (1958-06-01), Renner
patent: 2976261 (1961-03-01), Wagner
patent: 2995541 (1961-08-01), Kropa
patent: 3095385 (1963-06-01), Wagner
patent: 3275605 (1966-09-01), Eastes
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patent: 3860548 (1975-01-01), Roccheggiani
patent: 3860549 (1975-01-01), Sekmakas
Patterson, German English Dictionary for Chemists, Third ed., Wiley, N.Y. 1963, p. 210.

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