Flexibilized polyepoxide resins
AssigneeAir Products and Chemicals, Inc.
InventorsWilliam E. Starner, Susan G. Musselman
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Abstract
This invention relates to improved polyepoxide resins having enhanced physical and elastic properties. The polyepoxide resins comprise an polyepoxide resin based on a polyglycidyl ether of a phenolic type compound and an acrylate terminated urethane prepolymer. The improvement in the polyepoxide resin formulation comprises incorporating an aliphatic, aliphatic ether or ester component having monofunctional reactivity with an amine hydrogen and an amine curative having from 3 to 10, and preferably 3 to 5 epoxide reactive hydrogen atoms into the epoxy resin. The presence of the monofunctional and aliphatic amine reactive component along with the acrylate terminated urethane prepolymer results in an epoxy resin having the enhanced properties.
Claims14
In a curable epoxy resin comprising a polyglycidyl ether of a phenol having terminal 1,2-epoxy groups and an amine curative, the improvement for enhancing elasticity of the resulting epoxy resin which comprises, in combination therewith:
- a monofunctional aliphatic, aliphatic ether or ester amine reactive component, and
- an acrylate terminated urethane prepolymer and an amine curative having from 3 to 10 epoxide reactive hydrogen atoms.
Dependencies are inferred from the claim text.