Patent ID: 6069214
Filing Date: 2000-05-30
Classification: B32B,C08G,G03F,Y10T

Abstract:
A vibration damping constrained layer construction comprising a laminate of one or more stiff substrates and one or more polymeric mixtures formed by independently thermally or photochemically initiating in any combination and in any order, initiators of a composition of matter comprising a curable mixture comprising 1 to 99 weight percent of a first monomer and an initiator therefor, the first monomer being one of 1) at least one ethylenically unsaturated monomer or 2) at least one cyanate ester monomer, and 99 to 1 weight percent of a second monomer and an initiator therefor, the second monomer being the member of 1) or 2) that is not selected as the first monomer, wherein the curative for the cyanate ester is a transition metal-containing organometallic compound curing agent and the curative for the ethylenically unsaturated monomer is a free-radical generating curing, agent or a transition metal-containing organometallic compound, said composition being capable of providing an interpenetrating network comprising a semi-phase separated morphology.