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Reworkable UV Curable Thermosets Based on 7-Glycidyloxycoumarin Dimers

This invention focuses on epoxy thermosets that are developed by UV curing epoxy monomers with coumarin dimer. Background: This invention focuses on a new process for epoxy thermosets to be prepared--curing the epoxy monomers with coumarin dimer bridging groups between epoxide groups that are cured with commercial hardeners. Using the coumarin dimer...

Published: 10/29/2024 | Inventor(s): Douglas Loy, Kevin Frederick, Pamela Vandiver, Nancy Odegaard, Alyssa Ellsworth

Keywords(s):

Category(s): Technology Classifications > Materials > Polymers

Reactive, Fluorescent Epoxy Monomers for Making Epoxy Thermosets Visible Under Ultraviolet Light

This technology allows for the easy identification of epoxy repairs using ultraviolet (UV) light. A fluorescent dye is covalently bonded to the epoxy group molecule, preventing it from leaching out of the cured adhesive. This dye, which emits a bright fluorescence under UV light, does not reduce the adhesive strength of the epoxy and will not lose its...

Published: 8/1/2024 | Inventor(s): Douglas Loy, Pamela Vandiver, Nancy Odegaard, Kevin Frederick, Peter Mcfadden

Keywords(s):

Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Materials > Chemicals, Technology Classifications > Materials > Dyes, Technology Classifications > Materials > Polymers