PHENOL RESIN COMPOSITION FOR FRICTION MATERIAL, METHOD FOR PRODUCING MODIFIED PHENOL RESIN, AND FRICTION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a phenol resin composition for a friction material having high strength and improved heat resistance, without affecting formability of the friction material.;SOLUTION: This phenol composition for a friction material includes a modified phenol resin, comprising a novolac type phenol resin and hydroxy group-containing polyethersulfone, and a friction adjuster, where the polyethersulfone is contained in an amount of 1-20 wt.% to the whole of the modified phenol resin, and is preferably dispersed uniformly by dissolution.;COPYRIGHT: (C)2012,JPO&INPIT