Process for the production of hydantoins and polyhydantoin resin

Details Process for the production of hydantoins and polyhydantoin resin Process for the production of hydantoins and polyhydantoin resin

1977-11-23

1980-04-01

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...

528 75, 544 60, 544 82, 544139, 544370, 548309, 548310, 548313, C08G 1834, C08G 1867, C07D40106, C07D40306

Patent

active

041962745

ABSTRACT:
An iso(thio)cyanate having at least two iso(thio)cyanate groups is reacted with an unsaturated amido acid at 0.degree.-450.degree. C., said amido acid being a compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and each is hydrogen, aliphatic radical, aliphatic-aromatic radical or aromatic radical; R.sub.1 and R.sub.2 may additionally be halogen and y is an integer from 1-3.

REFERENCES:
patent: 3549599 (1970-12-01), Merten
patent: 3684774 (1972-08-01), Merten et al.
patent: 3705874 (1972-12-01), Merten et al.
patent: 3817926 (1974-06-01), Pauze
patent: 3939122 (1976-02-01), Merten et al.
patent: 3966683 (1976-06-01), Merten et al.

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