Curable resin material, e.g. for printed circuit boards

摘要

A radically polymerizable curable resin (A) obtained by reacting: (a) an epoxy resin containing two or more epoxy groups, with (b) a phenolic compound containing at least one alcoholic hydroxyl (OH) group, and (c) at least one unsaturated monobasic acid. Independent claims are also included for the following: (i) a curable resin (B) obtained by reacting resin (A) with a polybasic anhydride; (ii) a curable resin (C) obtained by reacting resin (A) and/or (B) with a chain extender containing at least two suitable functional groups; and (iii) curable resins containing (A), (B) and/or (C) and a polymerization initiator.