Cellular molded article in mold pattern having surface skin and producing method thereof

Abstract

A cellular molded article in a mold pattern having the surface skin, which has an excellent releasing property from a metal mold as well as an excellent printing property of a design formed on a surface of metal mold, and a producing method thereof are provided. The cellular molded article in a mold pattern having the surface skin and a producing method thereof, in which, at least a face of surface skin material, which contacts with a metal mold, is an olefin thermoplastic elastomer sheet which is composed of an olefin resin without containing a polyethylene resin as its matrix, and pre-expanded beads, which are employed for an expansion molding in a mold pattern, are pre-expanded beads of an olefin resin.

What is claimed is:  
     
         1 : A cellular molded article in the mold pattern having the surface skin, which is characterized in that, the cellular molded article in the mold pattern having the surface skin which is prepared by that, after thermoforming of a surface skin material along by either one of metal mold face of two metal molds which compose a mold pattern, by means of expansion molding in this mold pattern, the above mentioned surface skin material is melt united to one piece with a surface of cellular molded article to be molded, and at least one face of the above mentioned surface skin material which contacts with a metal mold is composed of an olefin thermoplastic elastomer sheet which is composed of an olefin resin without containing a polyethylene resin as a matrix, and pre-expanded beads which will be employed for an expansion molding in the mold pattern are pre-expanded beads of an olefin resin.  
     
     
         2 : A cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 , wherein it is characterized in that, the cellular molded article in the mold pattern having the surface skin is that, at least one face of the above mentioned surface skin material which contacts with a metal mold is an olefin thermoplastic elastomer sheet composed of an olefin line resin without containing a polyethylene resin, and pre-expanded beads, which will be employed for an expansion molding, are pre-expanded beads of an olefin resin.  
     
     
         3 : The interior trim material of an automobile comprises a cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 .  
     
     
         4 : A cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 , wherein it is characterized in that, pre-expanded beads of the above mentioned olefin resin are pre-expanded beads of a polypropylene resin.  
     
     
         5 : A cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 , wherein it is characterized in that, pre-expanded beads of the above mentioned olefin resin are pre-expanded beads of a polyethylene resin.  
     
     
         6 : A cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 , wherein it is characterized in that, the above mentioned olefin resin as a matrix is a polypropylene resin.  
     
     
         7 : A cellular molded article in the mold pattern having the surface skin as claimed in  claim 1 , wherein it is characterized in that, the above mentioned polyethylene resin which is not included as a matrix is a linear low density polyethylene resin.