Patent ID: 6534179
Filing Date: 2003-03-18
Classification: B32B,C08G,C08L,H05K,Y10T

Abstract:
A resin mixture, free of halogen, comprising the catalyzed product of a reaction mixture of:a) a cyanate ester monomer or prepolymer and a bismaleimide, b) a flame inhibiting compound comprising a derivative product from the reaction of a polyepoxy compound with at least one epoxy group per molecule with a phosphorus-containing reactive organic compound selected from the group consisting of a phosphinic acid anhydride, a phosphonic acid anhydride and a phosphonic acid half-ester, present in an amount wherein the elemental phosphorus content is between about 2% and about 20% by weight, based on the weight of the resin mixture, wherein the resin mixture is polymerized using a catalyst.