Hydroxy-functional polyhydantoin prepolymers and their use in co

Details Hydroxy-functional polyhydantoin prepolymers and their use in co Hydroxy-functional polyhydantoin prepolymers and their use in co

1997-03-11

1998-12-22

Sergent, Rabon

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528 68, 528 59, 528 73, 528 75, 528 84, 5483001, 5483121, 5483137, 5483144, C07D23378, C07D 2372

Patent

active

058522034

ABSTRACT:
The present invention relates to hydroxy-functional polyhydantoin prepolymers corresponding to the formula ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups, R.sub.2 represents an organic group which is inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6. The present invention is also directed to compositions suitable for the production of coatings, adhesives or elastomers containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates or aminoplast resins.

REFERENCES:
patent: 3549599 (1970-12-01), Merten
patent: 3639418 (1972-02-01), Merten
patent: 5126170 (1992-06-01), Zwiener et al.
patent: 5236741 (1993-08-01), Zwiener et al.
patent: 5243012 (1993-09-01), Wicks et al.
patent: 5412056 (1995-05-01), Zwiener et al.
patent: 5596044 (1997-01-01), Gindin et al.

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