Stable adducts suitable for curing epoxy resins are prepared by reacting a saturated epoxy resin with an excess of an amine and then reacting resulting epoxy-amine condensate with a base, preferably a strong base such as potassium or sodium hydroxide to remove at least 75% of the chlorine present in the condensate.
Mark F. Dante - Houston TX Roy A. Allen - Houston TX
Assignee:
Shell Oil Company - Houston TX
International Classification:
C08G 5950
US Classification:
528111
Abstract:
An adduct suitable for curing epoxy resins, particularly in water-borne systems, comprises first reacting an epoxy resin, preferably a saturated epoxy resin, with a primary monoamine and then reacting the resulting condensate with a polyfunctional amine.
The present invention provides room temperature curable epoxy coating compositions prepared by reacting (1) a saturated epoxy resin, (2) a curing amount of a polyamide and (3) a cellulose acetate butyrate in the presence of an organic solvent.
Low-temperature curing epoxy compositions are described comprising (1) a saturated epoxy resin, (2) a curing amount of certain aliphatic amines and (3) an organic solvent selected from the group consisting of alcohols, glycols, and glycol ethers.
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