POLYHYDROXY RESIN WITH EXCELLENT FLAME RETARDANCY, WET-PROOF PROPERTY, THE HEAT RESISTANCE, AND ADHESIVE PROPERTY WITH A METAL SUBSTRATE, AN EPOXY RESIN, A METHOD FOR MANUFACTURING THE SAME, AND AN EPOXY RESIN COMPOSITION AND A CURED PRODUCT USING THE SAME

摘要

PURPOSE: A polyhydroxy resin, a method for manufacturing the same, and an epoxy resin composition using the same are provided to ensure excellent wet-proof property, heat resistance, and fire retardancy as well as excellent moldability and to enable the application to the lamination, molding, and adhesion.;CONSTITUTION: A polyhydroxy resin is represented by chemical formula 1(wherein A represents a naphthalene ring(N) or a benzene ring(B)), wherein a molar ratio calculated by N/(N+B) is 0.2~0.7, a softening point is 75~125°C, and a melting point at 150°C is 2~10Pa·s. A method for preparing an epoxy resin comprises a step of racing the polyhydroxy resin with epichlorohydrin.;COPYRIGHT KIPO 2012