ELASTOMERIC COMPOSITIONS THAT RESIST FORCE LOSS
    6.
    发明申请
    ELASTOMERIC COMPOSITIONS THAT RESIST FORCE LOSS 审中-公开
    弹性体组合物,可抵抗力丧失

    公开(公告)号:WO2012064908A1

    公开(公告)日:2012-05-18

    申请号:PCT/US2011/060077

    申请日:2011-11-10

    CPC classification number: A61L15/24 C08L25/06

    Abstract: Embodiments of the present disclosure may provide various properties of slow recovery polymers, films, and laminates that in combination with an hydrogenated block copolymer provide for (1) an order-disorder transition temperature of greater than about 135°C, (2) a hard phase glass transition temperature of greater than about 60°C, (3) a combination of one or more hard block associating ingredients that maintain or increase the glass transition temperature of at least one equivalent hard block polymer of the hydrogenated block copolymer, (4) a force retention factor of greater than about 2, (5) aromatic substitution of either or both the soft block and the hard block, (6) hard blocks with a solubility parameter of greater than about 9.1 (cal/cm 3 ) 1/2 , and (7) compositions that remain extendable to at least 50% engineering strain after exposure to isopropyl palmitate for 30 hours at room temperature.

    Abstract translation: 本公开的实施方案可以提供缓慢回收的聚合物,膜和层合物的各种性质,其与氢化嵌段共聚物组合提供(1)大于约135℃的有序 - 无序转变温度,(2)硬 (3)保持或提高氢化嵌段共聚物的至少一当量硬嵌段聚合物的玻璃化转变温度的一种或多种硬嵌段缔合成分的组合,(4)相变玻璃化转变温度大于约60℃;(3) 大于约2的力保持系数,(5)软嵌段和硬嵌段之一或两者的芳香取代;(6)溶度参数大于约9.1(cal / cm3)1/2的硬嵌段, 和(7)在室温下暴露于棕榈酸异丙酯30小时后仍可延伸至至少50%工程应变的组合物。

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