Patent ID: 6558797
Filing Date: 2003-05-06
Classification: C08G,C08L,C09J,H05K,Y10S,Y10T

Abstract:
A resin coated copper foil obtained by applying on one side of a copper foil, an adhesive composition comprising as essential components:(a) an epoxy resin in an amount of 100 parts by weight; (b) a polyfunctional phenol in an amount wherein the phenolic hydroxyl group is in the range of 0.5 to 1.5 equivalent to one equivalent of the epoxy group; said polyfunctional phenol selected from the group consisting of bisphenol F, bisphenol A, bisphenol S, polyvinyl phenol, and novolak resins, wherein said novolak resins are obtained by reacting phenols with aldehydes; (c) a curing accelerator in an amount of 0.01 to 5 parts by weight per 100 parts by weight of the epoxy resin; and (d) a compound having a triazine or an isocyanuric ring in an amount wherein the nitrogen content is 0.1 to 10% by weight of the total amount of resin solid matter of (a), (b), and (c), said compound selected from the group consisting of: a compound having a triazine ring represented by the general formula (I): wherein R1, R2, and R3 represent independently an amino group, an alkyl group, a phenyl group, a hydroxyl group, a hydroxyalkyl group, an ether group, and ester group, an acid group, an unsaturated group, or a cyano group; a compound having an isocyanuric ring represented by the general formula (II): wherein R4, R5, and R6 represent independently an amino group, an alkyl group, a phenyl group, a hydroxyl group, a hydroxyalkyl group, an ether group, and ester group, an acid group, an unsaturated group, or a cyano group; and a polycondensate of a phenol, a compound of formula (I) or (II), and an aldehyde.