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    DIE ASSEMBLY FOR PRODUCING A FILM
    1.
    发明申请
    DIE ASSEMBLY FOR PRODUCING A FILM 审中-公开

    公开(公告)号：WO2020006074A1

    公开(公告)日：2020-01-02

    申请号：PCT/US2019/039233

    申请日：2019-06-26

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： HUANG, Wenyi ,  WENZEL, Jeffrey D. ,  FENG, Jie ,  WRISLEY, Robert E. ,  KIM, Hyunwoo ,  KOPPI, Kurt A. ,  KALEYTA, Scott R. ,  PARSONS, Thomas J. ,  MAZZOLA, Nicolas Cardoso ,  SINGH, Harpreet

    IPC: B29C48/08 ,  B29C48/11 ,  B29C48/305 ,  B29C48/255 ,  B29C48/21

    Abstract: The present disclosure provides a die assembly (10) having an outlet assembly (52). The outlet assembly (52) includes first and second outlet plates, each outlet plate (56A, 56B) having a respective inner face (106, 108). The first inner face (106) is in mirror-image relation to the second inner face (108) along an axis of symmetry (56C). The first inner face (106) and the second inner face (108) together form an elongate outlet (52, 57) through which a microcapillary film (54) exits the die assembly (10). Each inner face (106, 108) has two tapered surfaces (110A, 110C) extending in opposite directions away from a midpoint (112A, 112B). For each respective inner face (106, 108), a mid-segment (Ms) extends between the midpoint (112A, 112B) and the axis of symmetry (56C), and a peak segment (Ps) extends between a peak point (114A, 114B, 114C, 114D) and the axis of symmetry (56C). The mid-segment (Ms) and the peak segment (Ps) each have a length. The length of the mid-segment (Ms) is less than the length of the peak segment (Ps).

    DIE ASSEMBLY FOR PRODUCING A FILM
    5.
    发明申请
    DIE ASSEMBLY FOR PRODUCING A FILM 审中-公开

    公开(公告)号：WO2019006083A1

    公开(公告)日：2019-01-03

    申请号：PCT/US2018/039938

    申请日：2018-06-28

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： HUANG, Wenyi ,  WENZEL, Jeffrey, D. ,  FENG, Jie ,  WRISLEY, Robert, E. ,  KIM, Hyunwoo ,  KOPPI, Kurt, A. ,  KALEYTA, Scott, R. ,  SINGH, Harpreet ,  MAZZOLA, Nicolas, Cardoso

    IPC: B29C47/14 ,  B29C47/08 ,  B29C47/86

    Abstract: The present disclosure provides a die assembly (10) for producing a microcapillary film (54). The die assembly (10) includes a first die plate (12, 28), a second die plate (12, 28), a plurality of multi-jackbolt tensioners (30) connecting the first die plate (12, 28) to the second die plate (12, 28), a manifold (36), and a plurality of nozzles (58). The manifold (36) is located between the pair of die plates and defines a plurality of film channels (38) therebetween. The plurality of film channels (38) converge into an elongate outlet (52), wherein a thermoplastic material (4) is extrudable through the plurality of film channels (38) and the elongate outlet (52) to form a microcapillary film (54). The plurality of nozzles (58) are located between the plurality of film channels (38). The plurality of nozzles (58) are operatively connected to a source of channel fluid (66, 68) for emitting the channel fluid (66, 68) between layers of the microcapillary film (54), whereby a plurality of microcapillary channels (68) are formed in the microcapillary film (54).

    MOLD PROCESS FOR MAKING NANOFOAM
    8.
    发明申请
    MOLD PROCESS FOR MAKING NANOFOAM 审中-公开
    制造NANOFOAM的模具工艺

    公开(公告)号：WO2015183639A1

    公开(公告)日：2015-12-03

    申请号：PCT/US2015/031655

    申请日：2015-05-20

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

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

    IPC: B29C44/34 ,  B29K105/04

    CPC classification number: B29C44/348 ,  B29C44/02 ,  B29C44/586 ,  B29K2105/041 ,  C08J9/0061 ,  C08J9/122 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2205/042 ,  C08J2325/12 ,  C08J2333/06 ,  C08J2333/12 ,  C08J2425/12 ,  C08J2433/06

    Abstract: 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.

    Abstract translation: 通过以下步骤来制备纳米电影：（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）提供含聚合物和发泡剂的可发泡聚合物混合物，其压力高于聚合物和发泡剂的饱和压力以上至少690千帕斯卡; （c）将可发泡聚合物混合物引入模腔（12），同时保持高于饱和压力的至少690千帕的温度和压力，并且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。

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