POLYURETHANE FOAMS AND METHOD FOR PRODUCING SAME
    2.
    发明申请
    POLYURETHANE FOAMS AND METHOD FOR PRODUCING SAME 审中-公开
    聚氨酯泡沫塑料及其生产方法

    公开(公告)号:WO2015148248A1

    公开(公告)日:2015-10-01

    申请号:PCT/US2015/021406

    申请日:2015-03-19

    Abstract: The compositions described herein provide flexible polyurethane injection molded foam made from the reaction product of at least one polyol, at least one isocyanate, and at least one chain extender, where the polyurethane has: (a) a weight average molecular weight of 120,000 to 500,000, and (b) a dispersity (Mw/Mn) of 1.85 to 2.51. The compositions further include superior foams where the flexible polyurethane injection molded foam has: a vertical rebound, as measured by ASTM D2632, of at least 30%; a compression set at room temperature, as measured by ASTM D395, of no more than 25%; a compression set at 50C, as measured by ASTM D395, of no more than 50%; and an Asker C hardness, as measured by ASTM D2240, of 40 to 65. Also provided are process of making the same and articles made from the same.

    Abstract translation: 本文所述的组合物提供由至少一种多元醇,至少一种异氰酸酯和至少一种扩链剂的反应产物制成的柔性聚氨酯注塑泡沫,其中聚氨酯具有:(a)重均分子量为12万至500,000 ,(b)分散度(Mw / Mn)为1.85〜2.51。 组合物还包括优异的泡沫,其中柔性聚氨酯注塑泡沫具有:通过ASTM D2632测量的垂直回弹至少30%; 通过ASTM D395测量的在室温下的压缩永久变形不超过25%; 通过ASTM D395测量的在50℃下的压缩永久变形不大于50%; 和通过ASTM D2240测量的Asker C硬度为40至65.还提供了制备它们的方法和由其制备的制品。

    A COMBINED HOT-MELT ADHESIVE AND PRESSURE SENSITIVE ADHESIVE SYSTEM AND COMPOSITE MATERIALS MADE FROM THE SAME
    9.
    发明申请
    A COMBINED HOT-MELT ADHESIVE AND PRESSURE SENSITIVE ADHESIVE SYSTEM AND COMPOSITE MATERIALS MADE FROM THE SAME 审中-公开
    组合的热熔胶和压敏粘合剂系统及其相同的复合材料

    公开(公告)号:WO2015042501A1

    公开(公告)日:2015-03-26

    申请号:PCT/US2014/056717

    申请日:2014-09-22

    Abstract: The disclosed technology relates to a system and approach to achieve temporary adhesion of a hot-melt bonding film to a substrate, including for example a textile, leather, synthetic leather, or nonwoven substrate, so that the hot-melt film stays in place before and during the hot-melt bonding of the substrate to one or more other parts, and can even be re-positioned if needed, and then still stay in place before and during the hot-melt bonding process. In particular, an adhesive system is disclosed comprising (i) a hot- melt adhesive and (ii) a pressure sensitive adhesive, where the hot- melt adhesive is in the form of a continuous film and where the pressure sensitive adhesive is distributed on at least one surface of said continuous film in a discontinuous pattern. In preferred embodiments said hot-melt adhesive comprises a thermoplastic polyurethane and said pressure-sensitive adhesive comprises an acrylic polymer dispersion.

    Abstract translation: 所公开的技术涉及一种实现将热熔粘合膜临时粘合到基材(例如纺织品,皮革,合成革或非织造基材)的系统和方法,使得热熔胶膜在 并且在将基板热熔接合到一个或多个其它部件的过程中,并且如果需要,甚至可以重新定位,然后在热熔接合过程之前和期间仍然保持原位。 特别地,公开了一种粘合剂系统,其包括(i)热熔粘合剂和(ii)压敏粘合剂,其中热熔粘合剂是连续膜的形式,并且其中压敏粘合剂分布在 所述连续膜的至少一个表面呈不连续的图案。 在优选实施方案中,所述热熔粘合剂包含热塑性聚氨酯,并且所述压敏粘合剂包含丙烯酸类聚合物分散体。

    FAST RECOVERY SOFT THERMOPLASTIC POLYURETHANES
    10.
    发明申请
    FAST RECOVERY SOFT THERMOPLASTIC POLYURETHANES 审中-公开
    快速恢复软热塑性聚氨酯

    公开(公告)号:WO2014210099A1

    公开(公告)日:2014-12-31

    申请号:PCT/US2014/044002

    申请日:2014-06-25

    Abstract: The thermoplastic polyurethane compositions described herein have very good recovery properties, rebound resilience, or both, while also having good softness (i.e. low hardness). It has been difficult to provide thermoplastic polyurethane compositions with this combination of properties. Some compositions described herein also provide low haze and/or good clarity properties. These combination of properties make the thermoplastic polyurethane compositions described herein useful materials for application that require fast recovery, good rebound resilience, or both while also requiring soft materials, and in some embodiments low haze and/or good clarity.

    Abstract translation: 本文所述的热塑性聚氨酯组合物具有非常好的恢复性能,回弹性或两者,同时具有良好的柔软性(即低硬度)。 难以提供具有这种性质组合的热塑性聚氨酯组合物。 本文描述的一些组合物还提供低雾度和/或良好透明性。 这些性质的组合使得本文所述的热塑性聚氨酯组合物需要快速恢复,良好的回弹性或两者的应用的有用材料,同时也需要柔软的材料,并且在一些实施方案中为低雾度和/或良好的透明度。

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