Diurethane diureas and the use thereof

Details Diurethane diureas and the use thereof Diurethane diureas and the use thereof

1984-10-04

1985-12-31

Nielsen, Earl

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525504, 528119, 528361, 528369, 560 25, 560 26, 560158, C08G 5944, C08G 5946, C08G 5948

Patent

active

045622418

ABSTRACT:
Diurethane diureas of the formula ##STR1## wherein each R is a radical derived from a diisocyanate and having at most 20 C atoms, R' is a radical derived from a diol and having a molecular weight of at most 1500, and the radicals R" are each methyl or ethyl, or both radicals R" bound to the same N atom form together with the N atom the piperidino, morpholino or pyrrolidino radical, are valuable curing agents for epoxide resins, and are also suitable as accelerators for the hot-curing of epoxide resins with dicyandiamide, cyanoacetyl compounds and polycarboxylic acid anhydrides.

REFERENCES:
patent: 3386955 (1968-06-01), Nawakowski et al.
patent: 3386956 (1968-06-01), Nawakowski et al.
patent: 3717612 (1973-02-01), Babayan
patent: 4110309 (1978-08-01), Schulze et al.
patent: 4283520 (1981-08-01), Moser et al.
patent: 4436890 (1984-03-01), Kaufman

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