Isocyanate adducts with benzoxazolones or benzoxazinediones and

Details Isocyanate adducts with benzoxazolones or benzoxazinediones and Isocyanate adducts with benzoxazolones or benzoxazinediones and

1985-10-29

1987-10-20

Nielsen, Earl

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 73, 528 96, 528117, 544 50, 544 73, 544 94, 548157, 548171, 548219, 548221, C08G 7104

Patent

active

047015128

ABSTRACT:
The adducts of isocyanates wtih benzoxazolones or benzoxazinediones are novel compounds which may be employed as blocked isocyanates and are particularly useful as latent, epoxide curing agents. At typical epoxide curing temperatures, the isocyanate is oxirane or hydroxyl reactive and the benzoxazole or benzoxazinedione acts like a di- or trifunctional phenol, respectively.

REFERENCES:
patent: 3256293 (1966-06-01), Baker et al.
patent: 3415901 (1968-12-01), Schramm et al.
patent: 3789053 (1974-01-01), Clarke
patent: 4350781 (1982-09-01), Rasshofer et al.
patent: 4355058 (1982-10-01), Gras et al.

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