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    • 7. 发明专利
    • Foamable composition for filling/sealing purpose, foamable member for filling/sealing purpose, and foam for filling/sealing purpose
    • 用于填充/密封用途的可发泡组合物,用于填充/密封用途的可发泡构件和用于填充/密封用途的泡沫
    • JP2012219257A
    • 2012-11-12
    • JP2011090104
    • 2011-04-14
    • Nitto Denko Corp日東電工株式会社
    • UI TAKEHIROHAYASHI YOHEI
    • C08J9/06C08L9/00C08L23/08C08L23/22C08L63/00C08L77/00
    • C08J9/0061C08J9/06C08J2323/08C08J2409/00C08J2409/02C08J2409/06C08J2425/10C08J2463/00C08J2479/00C08L23/0853C08L63/00C08L77/00C08L2203/14Y10T428/31935C08L9/00C08L63/04
    • PROBLEM TO BE SOLVED: To provide a foam for filling/sealing purpose which has excellent sealing property with suppressed water absorption, a foamable member for filling/sealing purpose for forming the foam for filling/sealing purpose and a foamable composition for filling/sealing purpose.SOLUTION: The foamable composition for filling/sealing purpose contains a vinyl copolymer having an ester bond in a side chain, an organic peroxide, a foaming agent, a hydrophobic resin, and a hydrophilic resin, wherein the content ratio of the hydrophobic resin is 5-25 parts by mass relative to 100 parts by mass of the vinyl copolymer and the content ratio of the hydrophilic resin is 1-20 parts by mass relative to 100 parts by mass of the vinyl copolymer. A sheet 1 comprising the foamable composition for filling/sealing purpose is formed. An attaching member 3 is fitted to the sheet 1 to form the foamable member 6 for filling/sealing purpose. The foamable member 6 for filling/sealing purpose is attached to the inside space of a pillar 2 and is heated and foamed to form the foam 9 for filling/sealing purpose to fill and seal the inside space of the pillar 2.
    • 要解决的问题:为了提供具有优异的密封性和抑制吸水性的填充/密封用泡沫体,用于填充/密封用的填充/密封用泡沫体的发泡体,用于填充/密封用的泡沫体和用于填充的发泡性组合物 /密封用途。 解决方案:用于填充/密封目的的可发泡组合物含有侧链具有酯键的乙烯基共聚物,有机过氧化物,发泡剂,疏水性树脂和亲水性树脂,其中疏水性 相对于100质量份乙烯基共聚物,树脂为5〜25质量份,相对于100质量份乙烯基共聚物,亲水性树脂的含有比例为1-20质量份。 形成包括用于填充/密封目的的可发泡组合物的片材1。 安装构件3装配到片材1上以形成用于填充/密封目的的可发泡构件6。 用于填充/密封目的的可发泡构件6附接到柱2的内部空间,并被加热和发泡以形成用于填充/密封的泡沫9,以填充和密封柱2的内部空间。 (C)2013,JPO&INPIT