Epoxy thermoset compositions comprising excess epoxy resin and process for the preparation thereof
OwnerMaurice Joel Marks, Courtney Lawrence Shermaninventors
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Abstract
In one aspect, embodiments disclosed herein relate to a process for curing a thermoset composition, including: reacting a curable composition comprising an epoxy resin, an epoxy-reactive compound, and a catalyst, wherein there is a stoichiometric excess of the epoxy resin; to form an intermediate product having unreacted epoxy groups and secondary hydroxyl groups; and etherifying at least a portion of the unreacted epoxy groups and the secondary hydroxyl groups, catalyzed by the catalyst, to form a thermoset composition.
Claims12
A process for curing a thermoset composition, comprising:
- reacting a curable composition comprising an epoxy resin, an epoxy-reactive compound, and a catalyst, wherein there is a stoichiometric excess of the epoxy resin;
- to form an intermediate product having unreacted epoxy groups and secondary hydroxyl groups;
- etherifying at least a portion of the unreacted epoxy groups and the secondary hydroxyl groups, catalyzed by the catalyst, to form a thermoset composition.
A thermoset composition comprising the reaction product of a stoichiometric excess of an epoxy resin, an epoxy-reactive compound, and a catalyst, wherein the stoichiometric excess of epoxy resin has substantially reacted.
A process for forming a composite, comprising:
- disposing a curable composition on a substrate, wherein the curable composition comprises an epoxy resin, an epoxy-reactive compound, and a catalyst, wherein there is a stoichiometric excess of the epoxy resin;
- reacting the epoxy resin with the epoxy-reactive compound to form an intermediate product having unreacted epoxy groups and secondary hydroxyl groups;
- etherifying at least a portion of the unreacted epoxy groups and the secondary hydroxyl groups, catalyzed by the catalyst, to form a thermoset composition.
Dependencies are inferred from the claim text.