초록 ▼

There is provided a multi-layer molding method by which a molding product of multi-layers, in which a second layer is locally formed on a base layer, is produced, and the multi-layer molding method comprises the steps of: forming locally a cavity for forming the second layer between the first mold a

There is provided a multi-layer molding method by which a molding product of multi-layers, in which a second layer is locally formed on a base layer, is produced, and the multi-layer molding method comprises the steps of: forming locally a cavity for forming the second layer between the first mold and the second mold; injecting a second resin into the cavity for forming the second layer so as to mold the second layer; separating relatively the first mold and the second mold from each other so as to form a cavity for molding a base layer continuously between the first and the second molds and also between the second layer and a mold surface opposing to the second layer; and injecting resin for the base layer into the cavity for molding the base layer.

대표청구항 ▼

[ What is claimed is:] [1.] A method of molding a multi-layer molded product using a first mold having a first cavity surface, a second cavity surface and a protrusion extending from between the first cavity surface and the second cavity surface, and the method using a second mold having a first cav

[ What is claimed is:] [1.] A method of molding a multi-layer molded product using a first mold having a first cavity surface, a second cavity surface and a protrusion extending from between the first cavity surface and the second cavity surface, and the method using a second mold having a first cavity surface, a second cavity surface and a recess defined therebetween, the method comprising:forming a first cavity between the first mold and the second mold, the first cavity defined by the first cavity surface of the first mold, the first cavity surface of the second mold, and a first portion of the recess of the second mold, wherein a tip end of the protrusion substantially contacts a second portion of the recess;injecting a first resin into the first cavity to form a first layer, the first layer having an opposing surface opposite the first surface of the second mold;separating the first mold and the second mold;forming a second cavity defined by the first cavity surface of the second mold, the recess, the second cavity surface of the first mold, the second cavity surface of the second mold, the protrusion and the opposing surface of the first layer; andinjecting a second resin into the second cavity to form a second layer of the multi-layer molded product and a groove defined by a portion of the first layer and a portion of the second layer.