To eliminate the influence due to the springbcak of organic foamed particles and give a sharp relief pattern with favorable reproducibility to the surface with relief pattern in the extrusion molding of a product, in which the organic foamed particles are added for lightening the product.
The manufacturing method consists of processes, in which inorganic kneading material added with organic foamed particles is extrusion- molded in a continuous formed body having a predetermined sectional shape and then, onto the surface of a shaped body just after being extrusion-molded, an inorganic compounded stock made of the same quality as that of the inorganic kneading material including no organic foamed particle is laminated by the resultant layer thikness of 1/4-1/1 of the height of the raised part of a resultant relief pattern by pressing a relief pattern from above the resultant front layer and finally the resultant shaped body is cured and hardened by conventional procedure.
WO/2011/050951 | SHAPING METHOD AND DEVICES THEREFOR |
JPH05508360 | [Title of Invention] Method for Producing Polypropylene Complex |
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