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    MOLD PROCESS FOR MAKING NANOFOAM
    1.
    发明公开
    MOLD PROCESS FOR MAKING NANOFOAM 审中-公开
    FORMVERFAHREN ZUR HERSTELLUNG VON NANOSCHAUMSTOFF

    公开(公告)号：EP3148764A1

    公开(公告)日：2017-04-05

    申请号：EP15727189.1

    申请日：2015-05-20

    申请人： Dow Global Technologies LLC

    发明人： COSTEUX, Stéphane ,  BEAUDOIN, Daniel A. ,  KIM, Hyunwoo ,  FOETHER, Devin A.

    IPC分类号： B29C44/34 ,  B29K105/04

    摘要： Prepare nanofoam by: (a) providing a mold (10) with a mold cavity (12) defined by mold walls defining a sealable port (32); (b) providing a foamable polymer mixture containing a polymer and a blowing agent at a pressure at least 690 kilopascals above the saturation pressure for the polymer and blowing agent; (c) introducing the foamable polymer mixture into the mold cavity (12) while maintaining a temperature and pressure at least 690 kilopascals above the saturation pressure and controlling the pressure in the mold cavity (12) by expanding a wall of the mold; and (d) releasing pressure around the foamable mixture by moving a mold wall (20) at a rate of at least 45 centimeters per second, causing the foamable polymer mixture to expand into nanofoam having a porosity of at least 60 percent, a volume of at least 100 cubic centimeters and at least two orthogonal dimensions of four centimeter or more.

    摘要翻译： 通过以下步骤制备纳米电影：（a）提供具有由限定可密封端口（32）的模具壁限定的模腔（12）的模具（10）。 （b）在聚合物和发泡剂的饱和压力以上至少690千帕斯卡的压力下提供含有聚合物和发泡剂的可发泡聚合物混合物; （c）将可发泡聚合物混合物引入模腔（12）中，同时保持高于饱和压力的至少690千帕斯卡的温度和压力，并通过膨胀模具壁来控制模腔（12）中的压力; 和（d）通过以至少45厘米/秒的速率移动模具壁（20）来释放出所述可发泡混合物周围的压力，使得可发泡聚合物混合物膨胀成具有至少60％的孔隙率的纳米电子体， 至少100立方厘米和至少两个四厘米或更大的正交尺寸。