Process for preparing triketoimidazolidines

Details Process for preparing triketoimidazolidines Process for preparing triketoimidazolidines

1975-02-28

1977-04-19

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

2603095, C08G 1800

Patent

active

040187438

ABSTRACT:
A modified N,N'-substituted 2,4,5-triketoimidazolidine containing polycarboxylic acid amide or imide groups at least in the main chain, a process for its manufacture which comprises reacting at a temperature of from minus 20 to plus 280.degree. C (a) at least one oxamidic ester having the group --NH--CO--CO--OR.sup.v, wherein R.sup.v is an aliphatic hydrocarbon group having up to 18 carbon atoms, a cycloaliphatic hydrocarbon group with up to 8 carbon atoms, a mononuclear aromatic hydrocarbon group which may contain at least one hydrocarbon group which constitutes a total of up to 14 carbon atoms (b) at least one isocyanate having or yielding 1 to 4 isocyanate groups or isocyanates forming compound and (c) a polybasic carboxylic acid component having 4 to 71 carbon atoms and 2 to 6 carboxylic groups so as to obtain a condensation product possessing amide or imide groups.

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

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