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    • 6. 发明授权
    • Polyvinyl acetal-based resin composition
    • 聚乙烯醇缩醛类树脂组合物
    • US09512310B2
    • 2016-12-06
    • US14431324
    • 2013-09-20
    • SEKISUI CHEMICAL CO., LTD.
    • Yasuharu NagaiKaoru Mikayama
    • C08F2/44C08F261/12C08L29/14C08L33/04C08L33/14
    • C08L33/14C08F261/12C08L29/14C08L2205/22C08L33/06C08L51/003C08L33/068C08F220/18
    • The present invention provides a polyvinyl acetal resin composition exerting excellent mechanical strength over a wide temperature range from low temperatures to high temperatures. The present invention provides a polyvinyl acetal resin composition containing a polyvinyl acetal resin and a resin having a crosslinked structure, the polyvinyl acetal resin composition having a structure in which the resin having a crosslinked structure is dispersed as a dispersed phase in the polyvinyl acetal resin as a continuous phase, the polyvinyl acetal resin composition having a maximum value of a loss tangent derived from the polyvinyl acetal resin at 40° C. or higher and a maximum value of a loss tangent derived from the resin having a crosslinked structure at 10° C. or lower in measurement of a dynamic viscoelasticity spectrum at a frequency of 10 Hz.
    • 本发明提供一种在低温至高温的宽温度范围内具有优异的机械强度的聚乙烯醇缩醛树脂组合物。 本发明提供含有聚乙烯醇缩醛树脂和具有交联结构的树脂的聚乙烯醇缩醛树脂组合物,所述聚乙烯醇缩醛树脂组合物具有将具有交联结构的树脂作为分散相分散在聚乙烯醇缩醛树脂中的结构, 连续相,聚乙烯醇缩醛树脂组合物在40℃以上具有衍生自聚乙烯醇缩醛树脂的损耗角正切的最大值和由10℃下具有交联结构的树脂衍生的损耗角正切的最大值 或更低的在10Hz的频率下的动态粘弹性谱的测量。