Patent ID: 9498904
Filing Date: 2016-11-22
CPC Classification: B29C,B29K,B29L,B60R,D04H,G10K,Y10T

Claim Text:
1. A method for molding a heat-resistant sound absorbing and insulating material, comprising: i) coating a releasing agent inside a heated die; ii) forming a shape of a sound absorbing material by installing a sound absorbing material comprising, based on 100 parts by weight of sound absorbing material, a) an amount of about 20-80 parts by weight of a fiber material having a limiting oxygen index (LOI) of about 25% or greater and a heat resistance temperature of about 200° C. or greater and b) an amount of about 20-80 parts by weight of a thermosetting binder resin having a heat resistance temperature of about 200° C. or greater on the heated die coated with the releasing agent; and iii) stabilizing the shape of the compressed sound absorbing material, wherein the thermosetting binder resin comprises an epoxy resin, an amount of about 1-20 wt % of a curing agent based on the weight of the epoxy resin, an amount of about 1-10 wt % of a catalyst based on the weight of the epoxy resin and an amount of about 10-40 wt % of a flame retardant based on the weight of the epoxy resin.