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    METHOD FOR THE VACUUM-ASSISTED PRODUCTION OF A PUR/PIR FOAM BODY
    3.
    发明申请
    METHOD FOR THE VACUUM-ASSISTED PRODUCTION OF A PUR/PIR FOAM BODY 有权
    真空辅助生产PUR / PIR泡沫体的方法

    公开(公告)号：US20150183143A1

    公开(公告)日：2015-07-02

    申请号：US14418251

    申请日：2013-07-29

    Applicant: Bayer MaterialScience AG

    Inventor： Reinhard Albers ,  Patrick Klasen ,  Stephanie Vogel

    IPC: B29C44/34 ,  C08G18/72 ,  F16L59/02

    CPC classification number: B29C44/3403 ,  B29C44/0415 ,  B29C44/1209 ,  B29K2075/00 ,  B29K2079/00 ,  B29L2007/00 ,  B29L2023/00 ,  C08G18/72 ,  F16L59/02 ,  Y10T428/1376

    Abstract: The present invention relates to a method for producing a PUR/PIR foam body, comprising the steps of providing a mold adapted for applying an underpressure to the interior of the mold; introducing a reaction mixture comprising an isocyanate-reactive component A and an isocyanate B into the mold, and applying an underpressure to the interior of the mold, so the underpressure acts on the introduced reaction mixture. The underpressure is applied to the interior of the mold no later than the reaction mixture has started to set in the mold, and the isocyanate index of the reaction mixture is ≧300.

    Abstract translation: 本发明涉及一种用于生产PUR / PIR泡沫体的方法，包括以下步骤：提供适于将负压施加到模具内部的模具; 将包含异氰酸酯反应性组分A和异氰酸酯B的反应混合物引入模具中，并将负压施加到模具内部，因此负压作用在引入的反应混合物上。 在反应混合物已经开始放置在模具中之后，将负压施加到模具的内部，并且反应混合物的异氰酸酯指数为≥300。

    METHOD FOR THE PRODUCTION OF POLYURETHANE FOAM USING EMULSIFIED BLOWING AGENT
    4.
    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

    Applicant: Bayer MaterialScience AG

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

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

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

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