Patent ID: 7833454
Filing Date: 2010-11-16
Classification: B29C

Abstract:
1. A molding method of a mold product having a thin film at an inner surface thereof, the molding method comprising: a primary molding step including molding a half mold product by a sliding die and a fixed die; a preparing step including: a film forming step including forming a thin film on the surface of the half mold product in the film forming hermetically closed space by the sliding film forming chamber, wherein the primary molding step includes molding a pair of half mold products to provide bonding portions, wherein the preparing step includes matching the sliding film forming chamber with one half mold product of the pair of half mold products that is molded by the primary molding step and remains at the sliding die, wherein the film forming step includes forming a thin film on a surface of the one half mold product, wherein the method further comprises: a secondary molding step including: fastening the sliding die to the fixed die in order to bond the one half mold product and the another half mold product at the bonding portions thereof; a second primary molding step including molding a second pair of half mold products having bonding portions by a second sliding die and a second fixed die; a second preparing step including: a second film forming step including forming a thin film on the surface of the one half mold product of the second pair of half mold products by the sliding film forming chamber; and a second secondary molding step including: wherein the primary molding step is carried out substantially simultaneously with the second secondary molding step, the first film forming step is carried out substantially simultaneously with the second primary molding step, and the first secondary molding step is carried out substantially simultaneously with the second film forming step, wherein the sliding die and the second sliding die are provided to a movable disk that opens and closes with respect to a fixed disk, wherein the sliding film forming chamber is provided to the fixed disk and separated from the fixed die and the second fixed die, wherein the sliding die and the second sliding die slide in the movable disk in a first direction, and wherein the sliding film forming chamber slides in a second direction that is substantially perpendicular to the first direction.