Method For Producing Shaped Polyurethane Foam Wound Dressings
    5.
    发明申请
    Method For Producing Shaped Polyurethane Foam Wound Dressings 审中-公开
    生产聚氨酯泡沫伤口敷料的方法

    公开(公告)号:US20110201715A1

    公开(公告)日:2011-08-18

    申请号:US13060681

    申请日:2009-08-17

    IPC分类号: C08G18/10

    摘要: The invention relates to a process for producing shaped articles, where a foam layer which includes a polyurethane foam obtained by foaming a composition including an aqueous, anionically hydrophilicized polyurethane dispersion (I), and drying, is thermoformed where the thermoforming takes place at a temperature of from ≧100° C. to ≦200° C. and under a pressure of from ≧50 bar to ≦150 bar, and where additionally during the thermoforming the foam is compressed to ≧25% to ≦100% of its original volume. The foam can be stabilized using ethylene oxide/propylene oxide block copolymers. The invention further relates to shape articles obtainable in this way, and to the use thereof, preferably as wound dressings.

    摘要翻译: 本发明涉及一种生产成型制品的方法,其中包括通过使包含水性,阴离子亲水化的聚氨酯分散体(I)的组合物发泡得到的聚氨酯泡沫和干燥的泡沫层被热成型,其中热成型在温度 从≧100℃至< nlE; 200℃,压力≥50巴至< NlE; 150巴,并且另外在热成型期间,将泡沫压缩至≥25%至≤100;其100% 原卷。 泡沫可以使用环氧乙烷/环氧丙烷嵌段共聚物来稳定。 本发明还涉及以这种方式获得的形状制品及其用途,优选作为伤口敷料。