| 摘要 |
PURPOSE:To provide the title matrix having excellent dimensional accuracy and surface accuracy while retaining chemical stability, molding releasing property and durability, which is formed from a polyfluorocarbon resin and comprising a heat-resistant transparent plate in a resin layer. CONSTITUTION:For example, the heat-resistant transparent plate 2 is sandwiched between polyfluorocarbon resin sheets 1, the sandwich form body is integrally formed by placing it on a master form 3, and the master form 3 is removed, thereby obtaining the desired matrix consisting of the resin layer incorporating the plate 2 therein. The resin is preferably a tetrafluoroethylene-hexafluoropropylene copolymer or the like, and the transparent plate is preferably formed from an inorganic glass having SiO2 as a basic skeleton, e.g., soda glass. |
