METHOD FOR PRODUCING PHOSPHORUS ATOM-CONTAINING PHENOLS, PHOSPHORUS ATOM-CONTAINING PHENOLS, CURABLE RESIN COMPOSITION, CURED PRODUCT THEREOF, RESIN COMPOSITION FOR PRINTED WIRING BOARD, PRINTED WIRING BOARD, RESIN COMPOSITION FOR FLEXIBLE PRINTED WIRING BOARD, RESIN COMPOSITION FOR SEMICONDUCTOR SEALING MATERIAL, AND RESIN COMPOSITION FOR INTERLAYER INSULATING MATERIAL FOR BUILD-UP SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide phosphorus atom-containing phenols which are excellent in reactivity and productivity in synthesis and impart excellent heat resistance to a cured product as an epoxy resin curing agent. SOLUTION: An aromatic aldehyde (a1) having an alkoxy group as a substituent on the aromatic ring and an organophosphorus compound (a2) having a P-H or P-O group in the molecular structure are brought into a reaction, and the resulting reaction product is reacted with phenols (a) represented by structural formula (1) (wherein R is H or 1-10C alkyl; and n is an integer of 0-10). COPYRIGHT: (C)2011,JPO&INPIT