Interpenetrating network compositions and structures
OwnerRichard L. Jacobsinventor
Life of this patent
Estimating the term…
Abstract
Structure, composition and method in which a fiber reinforcement is impregnated with an interpenetrating network of a light cure resin and a thermosetting resin which are independently curable, enabling autobody component repair, electronic assembly bonding, etc. by selective cure first of one or the other resin, and the support against fluid flow of the uncured resin by the first cured resin.
Claims17
Composition for interpenetrating network comprising a first reagent and a second reagent, said first reagent comprising a light curable resin of an ethylenically reactive vinyl-, or allyl-moiety containing monomer mixed with urethane polymer formers comprising diphenyl methane diisocyanate or dicyclohexane diisocyanate;
- said second reagent comprising a light curable resin of an ethylenically reactive vinyl-, or allyl-moiety containing monomer, oligomer or polymer and a polyol forming a urethane polymer with said diisocyanates;
- in combination with a filler for said composition in at least one of said first and second reagents, said composition and said filler being further combined with fiber reinforcement and a catalyst for the light cure of said light curable resin under conditions under which said light curable resins are not reactive and remain flowable and said urethane polymer forming diisocyanates are reactive with said polyol to form urethane polymer which is sufficiently cured to be nonflowable and to retain said light curable resins in place against flowing from said reinforcing fiber.
Dependencies are inferred from the claim text.