Patent ID: 9382421
Filing Date: 2016-07-05
CPC Classification: C08G,C08K,C08L

Claim Text:
1. A heat-curable resin composition comprising: (A) a cyanate ester compound having at least two cyanate groups in a molecule, (B) a phenol curing agent comprising a resin represented by the following formula (1) wherein n represents an integer from 0 to 10, each of R 1 and R 2 independently represents a hydrogen atom or a monovalent group selected from an alkyl group having 1 to 10 carbon atoms, an allyl group, and a vinyl group, and (C) at least one compound selected from a tetraphenylborate of a tetra-substituted phosphonium compound and a tetraphenylborate represented by the following formula (2): wherein R 3 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group, and n represents an integer from 1 to 3.