FIRE-RETARDANT RESIN COMPOSITION, METAL-CLAD BASE LAMINATE FOR FLEXIBLE PRINTED CIRCUIT BOARD UTILIZING SAID COMPOSITION, COVER LAY, ADHESIVE SHEET FOR FLEXIBLE PRINTED CIRCUIT BOARD AND FLEXIBLE PRINTED CIRCUIT BOARD

摘要

(PROBLEM) To provide a flame-retardant resin composition that has superior adhesion subsequent to curing and molding when used as a printed wiring board adhesive and that provides superior printed wiring board electrical characteristics; and a flexible printed wiring board metal-clad laminate, a coverlay, a flexible printed wiring board adhesive sheet, and a flexible printed wiring board employing this resin composition. (SOLUTION) The flame-retardant resin composition comprises a thermosetting resin, a hardener, and a phosphorus-containing polymer.