Imidazole-phosphoric acid salts as accelerators for dicyandiamide in one-component epoxy compositions
AssigneeAir Products and Chemicals, Inc.
InventorsDilipkumar Nandlal Shah, William Edward Starner
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Abstract
A heat curable, a one-component epoxy protective or decorative coating or adhesive composition comprising an epoxy resin, dicyandiamide latent heat activated curing agent and an accelerator for the dicyandiamide curing agent characterized in that an imidazole phosphate salt is the accelerator.
Claims14
In a heat curable one-component epoxy composition comprising an epoxy resin, dicyandiamide latent heat activated curing agent and an imidazole salt composition as an accelerator for the dicyandiamide curing agent, the improvement which comprises an imidazole salt composition consisting essentially of an imidazole dihydrogen phosphate salt as the accelerator.
A composition which comprises dicyandiamide curing agent and an imidazole salt composition consisting essentially of the dihydrogen phosphate salt of imidazole, 1-methylimidazole, 2-phenylimidazole or 2-methylimidazole.
Dependencies are inferred from the claim text.