METHOD FOR MANUFACTURING LAMINATED GLASS FOR VEHICLE WINDOW

• Main Author: TANEDA KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 20.10.2022
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

To provide a method for manufacturing a laminated glass for a vehicle window which corresponds to a plurality of kinds of curved surface shapes and is excellent in quality.SOLUTION: A method for manufacturing a laminated glass for a vehicle window in which first and second glass plate are bonded to each other through an intermediate film includes a lamination step of arranging a functional film containing a resin film between first and second curved plate-like bodies, and forming a laminate, a molding step of heating the functional film to a temperature equal to or higher than a softening point and lower than a melting point of the resin film, and forming a curve functional film, and a first press-bonding step of arranging and press-bonding the intermediate film and the curve functional film between the first and second glass plates, wherein an area of a main surface of the first curved plate-like body is larger than an area of the first main surface facing the main surface of the first curved plate-like body of the functional film, and an area of a main surface of the second curved plate-like body is larger than an area of a second main surface facing the main surface of the second curved plate-like body of the functional film.SELECTED DRAWING: Figure 4 【課題】複数の種類の曲面形状に対応し、かつ品質に優れた車両窓用合わせガラスの製造方法の提供。【解決手段】本車両窓用合わせガラスの製造方法は、第１及び第２のガラス板が中間膜を介して接着されている車両窓用合わせガラスの製造方法であって、第１及び第２の湾曲板状体の間に、樹脂フィルムを含む機能フィルムを配置して積層体を形成する積層工程と、前記樹脂フィルムの軟化点以上かつ融点未満の温度に前記機能フィルムを加熱して湾曲機能フィルムを形成する成形工程と、前記第１及び第２のガラス板の間に、前記中間膜及び前記湾曲機能フィルムを配置して圧着する第１の圧着工程を備え、前記第１の湾曲板状体の主面の面積は、前記機能フィルムの、前記第１の湾曲板状体の主面と対向する第１主面の面積よりも大きく、前記第２の湾曲板状体の主面の面積は、前記機能フィルムの、前記第２の湾曲板状体の主面と対向する第２主面の面積よりも大きい。【選択図】図４