Production mannered null male die

摘要

PROBLEM TO BE SOLVED: To provide a novel method for producing a multi-layer resin molding by a single molding process using a molding mold. ;SOLUTION: A mixed molten resin material prepared by mixing/melting at least two kinds of resins different in viscosity is packed in a rotor-shaped cavity formed between a male mold 10 and a female mold 20, the layer of a high viscosity resin is formed in a prescribed part in the thickness direction of the cavity of small shear stress by rotating the male mold 10 and the female mold 20 relatively, the layers of a low viscosity resin are formed inside/outside the high viscosity resin layer, and the resins in the multi-layers are cured.;COPYRIGHT: (C)2001,JPO