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    • 9. 发明申请
    • LAMINATED GLASS INTERMEDIATE FILM AND LAMINATED GLASS
    • 层压玻璃中间膜和层压玻璃
    • US20130323516A1
    • 2013-12-05
    • US13984807
    • 2012-02-10
    • Michio ShimamotoShota MatsudaSinyul YangKohei KaniTatsuya Iwamoto
    • Michio ShimamotoShota MatsudaSinyul YangKohei KaniTatsuya Iwamoto
    • B32B17/10
    • B32B17/10761B32B27/08B32B27/22B32B27/30B32B2250/03C08F16/38C08L29/14Y10T428/2495Y10T428/24967Y10T428/31627Y10T428/3163Y10T428/31855Y10T428/31859Y10T428/31942Y10T428/31946
    • The present invention provides an intermediate film for laminated glass which can improve the sound-insulating property. The intermediate film for laminated glass according to the present invention has a layered structure including at least two layers, comprising: a first layer containing a polyvinyl acetal resin and a plasticizer; and a second layer positioned on a first surface of the first layer. In a phase diagram of three values including a degree of acetalization, a degree of acetylation, and a hydroxy group content of the polyvinyl acetal resin contained in the first layer, the values of the degree of acetalization, the degree of acetylation, and the hydroxy group content each fall within a region surrounded by a line including four straight lines connecting a first coordinate (degree of acetalization:degree of acetylation:hydroxy group content=70 mol %:30 mol %:0 mol %), a second coordinate (degree of acetalization:degree of acetylation:hydroxy group content=34 mol %:30 mol %:36 mol %), a third coordinate (degree of acetalization:degree of acetylation:hydroxy group content=94 mol %:0 mol %:6 mol %), and a fourth coordinate (degree of acetalization:degree of acetylation:hydroxy group content=100 mol %:0 mol %:0 mol %) in the stated order.
    • 本发明提供一种能够提高隔音性的夹层玻璃用中间膜。 根据本发明的夹层玻璃用中间膜具有包括至少两层的层状结构,包括:含有聚乙烯醇缩醛树脂和增塑剂的第一层; 以及位于所述第一层的第一表面上的第二层。 在包含第一层中的聚乙烯醇缩醛树脂的缩醛化程度,乙酰化度和羟基含量的三个值的相图中,缩醛化度,乙酰化度和羟基 组分含量各自落在由包括连接第一坐标(缩醛化度:乙酰化度:羟基含量= 70摩尔%:30摩尔%:0摩尔%)的四条直线包围的区域内,第二坐标(度 缩醛化度:羟基含量= 34摩尔%:30摩尔%:36摩尔%),第三坐标(缩醛化度:乙酰化度:羟基含量= 94摩尔%:0摩尔%:6摩尔% %),第四坐标(缩醛化度:乙酰化度:羟基含量= 100摩尔%:0摩尔%:0摩尔%)。