초록 ▼

A method for manufacturing an interior member for vehicles comprises the steps of laying a surface layer in a cavity of a mold, placing a reinforcing fiber mat onto the surface layer, compressing the surface layer and the reinforcing fiber mat in the mold, injecting raw material for obtaining a poly

A method for manufacturing an interior member for vehicles comprises the steps of laying a surface layer in a cavity of a mold, placing a reinforcing fiber mat onto the surface layer, compressing the surface layer and the reinforcing fiber mat in the mold, injecting raw material for obtaining a polyisocyanurate and demolding an integrally-molded interior member from the mold after the completion of a reaction of the raw material. The raw material comprises a trimerization catalyst, a polyol and a polyisocyanate. The amount of raw material is determined so that the density of the obtained polyisocyanurate is 1.2 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state.

대표청구항 ▼

A method for manufacturing an interior member for vehicles, comprising steps of: (a) laying a surface layer in a cavity of a mold; (b) placing a reinforcing fiber mat onto said surface layer; (c) compressing said surface layer and said reinforcing fiber mat in the mold; (d) injecting raw material fo

A method for manufacturing an interior member for vehicles, comprising steps of: (a) laying a surface layer in a cavity of a mold; (b) placing a reinforcing fiber mat onto said surface layer; (c) compressing said surface layer and said reinforcing fiber mat in the mold; (d) injecting raw material for obtaining a polyisocyanurate into the cavity of the mold, said raw material comprising a trimerization catalyst, a polyol and a polyisocyanate, the amount of said raw material being so determined that the density of the obtained polyisocyanurate is 1.2 to 1.9 times as much as the density of the same polyisocyanurate in its free foaming state, the amount of polyisocyanate used for obtaining said polyisocyanurate being from 250 to 3,000 on the isocyanate index; and (e) demolding an integrally-molded interior member from the mold after the completion of the reaction of the raw material.