Method for molding a thermoplastic elastu00c8mero and / or a synthetic rubber and a polu00ecmero

摘要

Method for moulding a thermoplastic elastu00c8mero and / or a synthetic rubber and a polu00ecmero ".Objectives of the invention are to provide a method for particle shape polymers enabling mold products each of which having an external format transferred precisely from the format intThe rule of a mold, exhibiting high dimensional accuracy and being uniform in the thickness of skin layer and in the rate of expansion in its interior foamed.A molten polymer is injected into a cavity 60, 30 and, at the same time, gas is compressed to the inside of the polymer melt 60 to contact the polymer near the surface of the mold.And then gas is discharged while maintaining the shape in the mould.In order to mold a product formed of polymer where the surface of the skin layer 61 and an inner foamed 62 having cushioning properties are formed in one piece.