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    • 4. 发明申请
    • INTERLAYER FILM FOR LAMINATED GLASS, AND LAMINATED GLASS
    • 层压玻璃的层间膜和层压玻璃
    • US20160311200A1
    • 2016-10-27
    • US15104321
    • 2015-03-31
    • SEKISUI CHEMICAL CO., LTD.
    • Shougo YOSHIDAKazuhiko NAKAYAMATatsuya IWAMOTO
    • B32B17/10B32B27/08B32B27/22B32B3/30
    • B32B17/10B32B3/30B32B17/10587B32B17/10596B32B17/10761B32B27/08B32B27/22B32B2250/03B32B2307/412
    • The present invention aims to provide an interlayer film for laminated glass having small optical distortion while having a multilayer structure of two or more layers, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass including at least two resin layers laminated together, the interlayer film having a large number of minute recesses and a large number of minute projections on at least one surface, the at least two resin layers including a first surface layer and a second surface layer and each containing a thermoplastic resin and a plasticizer, wherein, provided that the interlayer film is allowed to stand at 23° C. and a humidity of 30% RH for three hours, and cut with a microtome at 23° C. and a humidity of 30% RH in the horizontal direction of the interlayer film at a portion of 80 to 90 μm distant on the first surface layer side from the interface between the first surface layer and a resin layer contacting the interior side of the first surface layer and then at a portion of 50 μm distant from the cut face on the second surface layer side to prepare a resin film 1 having a thickness of 50 μm, the resin film 1 after standing at a temperature of 23° C. and a humidity of 30% RH for three hours has a surface roughness (Rz) measured by a method in conformity with JIS B-0601 (1994) of less than 2.5 μm.
    • 本发明的目的在于提供一种具有小的光学变形的夹层玻璃用中间膜,同时具有两层或更多层的多层结构,以及夹层玻璃,其包括夹层玻璃用中间膜。 本发明涉及一种层压玻璃用中间膜,其包括层叠在一起的至少两层树脂层,所述中间膜具有大量微小凹陷和至少一个表面上的大量微小突起,所述至少两层树脂层包括 第一表面层和第二表面层,并且各自含有热塑性树脂和增塑剂,其中,只要将中间膜在23℃和30%RH的湿度下放置3小时,并用 切片机在层间膜的水平方向上在23℃和湿度30%RH的范围内,在第一表面层和与第一表面层和与第一表面层接触的树脂层之间的界面处的第一表面层侧的80至90μm的部分 在第一表面层的内侧,然后在距离第二表面层侧的切割面50μm的部分,以制备厚度为50μm的树脂膜1,sta后的树脂膜1 在23℃的温度和30%RH的湿度下三小时,通过JIS B-0601(1994)的方法测定的表面粗糙度(Rz)小于2.5μm。