Method of accelerating epoxy curing
AssigneeJefferson Chemical Company, Inc.
InventorHarold George Waddill
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Abstract
Epoxy resins, of the polyglycidyl ether of a polyhydric phenol type, are cured by incorporating therein a polyoxyalkylenepolyamine and an accelerator combination of piperazine and an alkanolamine, the combination having a combined weight ratio of between about 1:8 to 1:1. The accelerator combination is synergistic for accelerating the curing of a polyglycidyl ether of a polyhydric phenol cured with a polyoxyalkylenepolyamine at ambient or elevated temperatures. The epoxy resin products are useful in protective coatings, adhesives, seamless and terrazzo flooring, castings, laminates, and in grouting, potting, encapsulating, caulking and sealing compositions.
Claims7
In a process for curing a polyglycidyl ether of a polyhydric phenol with a polyoxyalkylenepolyamine by combining a polyglycidyl ether of a polyhydric phenol with stoichiometric quantities of a polyoxyalkylenepolyamine, the improvement which comprises:
- accelerating said curing by addition of an accelerator combination of piperazine and an alkanolamine, said accelerator combination having a weight ratio of about 1:8 to 1:1 piperazine to alkanolamine.
Dependencies are inferred from the claim text.