Process for the preparation of hydantoin lacquers

Details Process for the preparation of hydantoin lacquers Process for the preparation of hydantoin lacquers

1977-11-23

1980-01-08

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

260 292TN, 528 51, 528 53, 528 54, 528 55, 528 56, 528 58, 528 75, 525535, 525540, 548310, 548313, C08G 1867, C08G 1882, C07D23376

Patent

active

041828127

ABSTRACT:
A process is described for preparing hydantoins by reacting an isocyanate or isothiocyanate having 2 or more isocyanate or isothiocyanate groups with an unsaturated diamide at 0.degree.-450.degree. C. said diamide being a compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.6 may be the same or different and each is from the group consisting of hydrogen, alkyl of 1-20 carbon atoms, alkenyl or 1-20 carbon atoms, aryl of 4-20 carbon atoms and aralkyl or 7-20 carbon atoms, and R.sub.4 and R.sub.6 together are additionally together a heterocyclic having 3-7 carbon atoms wherein the nitrogen heteroatom is bonded to both R.sub.3 and R.sub.6, and

REFERENCES:
patent: 3705874 (1972-12-01), Merten et al.
patent: 3779996 (1973-12-01), Pauze
patent: 3839354 (1974-10-01), Habermeier et al.
patent: 3951902 (1976-04-01), Jones et al.

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