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    METHOD FOR THE PRODUCTION OF POLYURETHANE FOAM USING EMULSIFIED BLOWING AGENT
    1.
    发明申请
    METHOD FOR THE PRODUCTION OF POLYURETHANE FOAM USING EMULSIFIED BLOWING AGENT 审中-公开
    使用乳化发泡剂生产聚氨酯泡沫的方法

    公开(公告)号：US20150259496A1

    公开(公告)日：2015-09-17

    申请号：US14418229

    申请日：2013-07-26

    申请人： Bayer MaterialScience AG

    发明人： Reinhard Albers ,  Torsten Heinemann ,  Stephanie Vogel ,  Michael Loof ,  Zhihong Gu ,  Atsushi Urano ,  Suk Sangjo ,  Zhao Shihu

    IPC分类号： C08J9/14 ,  C08G18/18 ,  C08G18/08 ,  C08G18/76 ,  C08G18/48

    CPC分类号： C08J9/141 ,  B29C44/3403 ,  C08G18/14 ,  C08G18/18 ,  C08G18/4018 ,  C08G18/4816 ,  C08G18/482 ,  C08G18/7664 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2130/00 ,  C08J2201/022 ,  C08J2203/14 ,  C08J2375/04 ,  C08J2375/08 ,  C08J2483/06

    摘要： The present invention is related to a method for the production of polyurethane foam, comprising the steps of: providing an isocyanate-reactive component A comprising a polyol component A1 which comprises a physical blowing agent T; combining at least the isocyanate-reactive component A and an isocyanate component B, thereby obtaining a polyurethane reaction mixture; providing the polyurethane reaction mixture in a cavity (11); and reducing the pressure within the cavity (11) to a pressure lower than ambient pressure; characterized in that the physical blowing agent T is present in the isocyanate-reactive component A in the form of an emulsion with the polyol component A1 constituting the continuous phase and droplets of the physical blowing agent T the dispersed phase of the emulsion, wherein the average size of the droplets of the physical blowing agent T is ≧0.1 μm to ≦20 μm, the droplet size being determined by using an optical microscope operating in bright field transmission mode.

    摘要翻译： 本发明涉及一种生产聚氨酯泡沫的方法，包括以下步骤：提供含有多元醇组分A1的异氰酸酯反应性组分A，其包含物理发泡剂T; 至少混合异氰酸酯反应性组分A和异氰酸酯组分B，从而获得聚氨酯反应混合物; 将聚氨酯反应混合物提供在空腔（11）中; 以及将所述空腔（11）内的压力降低到低于环境压力的压力; 其特征在于，物理发泡剂T以多元醇成分A1构成连续相的乳液形式存在于异氰酸酯反应性成分A中，物理发泡剂T的液滴为乳液的分散相，其中平均 物理发泡剂T的液滴的大小为≥0.1μm至＆lt; nlE;20μm，通过使用在明场传输模式下操作的光学显微镜来确定液滴尺寸。