Accelerators for epoxide curing agents containing cyanamide

Details Accelerators for epoxide curing agents containing cyanamide Accelerators for epoxide curing agents containing cyanamide

1989-05-15

1990-06-12

Schwartz, Richard A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528117, 528407, 548335, C08G 5968

Patent

active

049334220

ABSTRACT:
Accelerators for epoxide curing agents containing cyanamide are described which use an adduct and/or reaction product of (a) a specific imidazole derivative with (b) an organic acid having a pK.sub.A value of 0.5 to 5.0.
The accelerators according to the invention impart to the epoxy resin-curing agent-accelerator system a longer shelf life compared with known accelerators.

REFERENCES:
patent: 4358571 (1982-11-01), Kaufman et al.
K. Potts (Editor), Comprehensive Heterocyclic Chemistry, vol. 5, Pergamon Press, Oxford, 1984, p. 383.
C. Hodgman et al. (Editors), Handbook of Chemistry and Physics, 44th Ed., Chemical Rubber Pub. Co., Cleveland, 1963, p. 1756.

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