Patent ID: 6103165
Filing Date: 2000-08-15
Classification: B29C

Abstract:
A molding process comprising:(a) a first molding step of molding a primary product by injecting a first synthetic resin material into a primary mold cavity of a primary mold, said primary mold cavity having inwardly projecting protrusions so that said primary product has holes formed on the surface thereof;(b) a second molding step of securing said primary product in a secondary mold cavity of a secondary mold by engaging protrusions inwardly projecting in said secondary mold cavity into said holes of said primary product molded in said first molding step; and(c) said second molding step includes a step of molding a secondary product having through holes on its surface, said holes being made by said protrusions inwardly projecting in said secondary mold cavity, by injecting a second synthetic resin material into said secondary mold cavity, while said primary product is secured therein.