Patent ID: 9133283
Filing Date: 2015-09-15
Classification: B32B,C08F,C08J,C08K,C09D

Abstract:
1. A method of curing a dual cure composition comprising the steps of: (i) providing a dual cure composition comprising: at least one filler; at least one curable monomer comprising at least one of an ethylenic unit or cyclic ether unit or mixture thereof; at least one photoinitiator; and at least one thermal initiator; (ii) exposing the composition to radiation of a wavelength from a radiation source for a time to at least partially photocure the composition and to provide an exotherm sufficient to continue curing of the composition by thermal curing upon terminating exposure of the composition to the radiation to form a cured composition wherein the filler comprises carbon fabric and/or carbon fibers, the photoinitiator comprises a combination of phosphine oxide and phenyl-p-octyloxylphenyl-iodonium hexafluorantimonate, the thermal initiator comprises methyl ethyl ketone peroxide, the radiation comprises UV-A, and wherein the composition further comprises cycloaliphatic diepoxide and wherein curing of the composition is performed in the absence of heat from an external thermal source.