N,N'-substituted 2,4,5-triketoimidazolidines

Details N,N'-substituted 2,4,5-triketoimidazolidines N,N'-substituted 2,4,5-triketoimidazolidines

1974-01-23

1976-07-13

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25R, 260 775CH, 2603095, C08G 1814, C08G 1806, C08G 1810

Patent

active

039692906

ABSTRACT:
A process for the preparation of modified N,N'-substituted-2,4,5-triketoimidazolidines which comprises reacting a precondensate having terminal isocyanate groups, prepared by reacting (a) a polybasic carboxylic acid, containing from 4 to 70 carbon atoms and from 2 to 6 carboxyl groups, with an excess of (b) one or more isocyanates or isocyanate forming compounds in the presence of a solvent, with (c) at least one oxamidic ester containing the group NH--CO--CO--OR.sup.v wherein R.sup.v represents an aliphatic hydrocarbon group containing up to 18 carbon atoms, a cycloaliphatic hydrocarbon group containing up to 8 carbon atoms or a mononuclear aromatic hydrocarbon group being unsubstituted or substituted by at least one hydrocarbon group and having a total of up to 14 carbon atoms in the presence of a solvent, a product prepared by said process and a shaped article comprising such a product.

REFERENCES:
patent: 3609113 (1971-09-01), Schade et al.

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