Composite Sheet and Use Thereof
    9.
    发明申请
    Composite Sheet and Use Thereof 审中-公开
    复合片及其用途

    公开(公告)号:US20090044853A1

    公开(公告)日:2009-02-19

    申请号:US12085459

    申请日:2006-11-24

    摘要: [Problems to be solved] The present invention provides a sealing sheet that can be used instead of the sealing sheet made from the conventionally widely used EVA, which has good transparency, heat resistance and adhesiveness with a polypropylene resin, and good productivity. [Means to solve the problems] The sealing sheet (I) is made from a thermoplastic resin composition comprising 0 to 90 parts by weight of a propylene polymer (A) having a melting point, as measured by a differential scanning calorimeter, of 100° C. or higher, and 10 to 100 parts by weight of a propylene copolymer (B), wherein the copolymer is formed from propylene, and at least one olefin selected from the group consisting of ethylene and α-olefins having 4 to 10 carbon atoms, and the copolymer has a shore A hardness of 30 to 80 and has a melting point, as measured by a differential scanning calorimeter, of 100° C. or lower or has no melting point to be observed (with the total of (A) and (B) being 100 parts by weight), wherein the thermoplastic resin composition has a permanent compression set, as measured at 23° C., of 5 to 35%, and a permanent compression set, as measured at 70° C., of 50 to 70%.

    摘要翻译: [待解决的问题]本发明提供一种密封片,其可以代替由常规广泛使用的EVA制成的密封片,其与聚丙烯树脂具有良好的透明性,耐热性和粘合性,并且生产率高。 解决问题的方法密封片(I)由热塑性树脂组合物制成,该热塑性树脂组合物包含0至90重量份的通过差示扫描量热计测量的熔点的丙烯聚合物(A)为100° 以及10〜100重量份的丙烯共聚物(B),其中所述共聚物由丙烯形成,并且至少一种烯烃选自乙烯和具有4〜10个碳原子的α-烯烃 ,共聚物的肖氏A硬度为30〜80,通过差示扫描量热计测定的熔点为100℃以下或没有观察到熔点(总计(A)), 和(B)为100重量份),其中热塑性树脂组合物在23℃下测定的永久压缩永久变形量为5〜35%,在70℃下测定的永久压缩永久变形, 为50至70%。