Patent ID: 6261489
Filing Date: 2001-07-17
Classification: B29C,Y10S

Abstract:
A method for producing a cellular molded article of a synthetic resin having a surface skin which comprises that in a method for producing the cellular molded article of a synthetic resin having a surface skin in which thermoplastic resin skin material formed in this molding chamber is set in any one of two mold parts which comprises the molding chamber and after clamping the parts, expanded beads are charged into this molding chamber, then expanded and melt bonded together by steam heating, along with being melt bonded and united with the said thermoplastic resin skin material, at least the part of the said one mold part on which the said thermoplastic resin skin material is set is made of gas permeable metal mold, gas permeable ceramic mold or gas permeable electron casted mold having fine gas permeable holes of not more than 100 .mu.m of diameter on the whole surface and the said one part is made to be the upper mold part and the other part is made to be the lower mold part at least during the said steam heating and before expanding the said expanded beads.