Latent curing agents for epoxy resins

Details Latent curing agents for epoxy resins Latent curing agents for epoxy resins

1983-10-03

1984-08-14

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525504, 528365, 528367, 548312, 548313, C08G 5944, C08G 5954, C07D40330

Patent

active

044658303

ABSTRACT:
Hydrazides of the formula ##STR1## are good curing agents for epoxy resin, in the formula R.sub.1 and R.sub.2 being each hydrogen atom, C.sub.1 -C.sub.8 alkyl radical or --CH.sub.2 CH.sub.2 SCH.sub.3, R being hydrogen atom or methyl radical. The curing agents are useful in formulating novel storable one-package, heat-curable epoxy resins-based compositions.

REFERENCES:
patent: 3597441 (1971-08-01), Wollner et al.
patent: 3635844 (1971-01-01), Porret et al.
patent: 3635845 (1972-01-01), Porret et al.
patent: 3725342 (1973-04-01), Porret et al.
"Nippon Kagaku Zasshi" 83, No. 5, 620-624 (1962) with English Translation.

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