Continuous pore elastomer and process for producing the same, and water-absorbing roller and swab
    11.
    发明授权
    Continuous pore elastomer and process for producing the same, and water-absorbing roller and swab 有权
    连续孔弹性体及其制造方法,吸水辊和棉签

    公开(公告)号:US08470902B2

    公开(公告)日:2013-06-25

    申请号:US11791995

    申请日:2005-11-22

    CPC classification number: C08J9/26 C08J2201/044 C08J2375/04 F26B5/16

    Abstract: A continuous pore elastomer featured by being made of a polyurethane, having a three dimensional network pore structure of which skeletons have an average thickness of 20 μm or less and 80% or more of the skeletons have a thickness within the range of 2 to 20 μm, having an apparent density of 0.2 to 0.4 g/cm3, containing a surfactant with a HLB value of 8 or more, and being capable of absorbing water instantly;a process for producing the continuous pore elastomer, comprising a step of extracting out the pore generation agent from the molding with water; anda water-absorbing roller and a swab obtained by using the continuous pore elastomer.

    Abstract translation: 由具有三维网状孔结构的聚氨酯制成的连续孔弹性体,其骨架的平均厚度为20μm以下,骨架的80%以上的厚度为2〜20μm的范围 ,表观密度为0.2〜0.4g / cm 3,含有HLB值为8以上的表面活性剂,能够瞬间吸收水分; 一种连续孔弹性体的制造方法,其特征在于,包括用水从成型体中提取孔产生剂的工序; 以及通过使用连续孔弹性体获得的吸水辊和棉签。

    Porous Polyimide Membrane, Battery Separator, Battery, and Method
    12.
    发明申请
    Porous Polyimide Membrane, Battery Separator, Battery, and Method 审中-公开
    多孔聚酰亚胺膜,电池分离器,电池和方法

    公开(公告)号:US20100028779A1

    公开(公告)日:2010-02-04

    申请号:US12533664

    申请日:2009-07-31

    Abstract: A porous polyimide membrane is provided. The volume of pores with a diameter of between about 50 and about 300 nm is more than about 40%, preferably more than 75% of the total pore volume in the membrane. A method for preparing a porous polyimide membrane comprises: preparing a porous polyamide acid membrane; stretching the porous polyamide acid membrane to form a stretched membrane; and imidizing the stretched membrane to form a porous polyimide membrane. The volume of the pores with a diameter of about 50-300 nm is more than about 40%, preferably more than 75% of the total pore volume in the porous polyimide membrane.

    Abstract translation: 提供多孔聚酰亚胺膜。 直径为约50至约300nm的孔的体积大于膜中总孔体积的约40%,优选大于75%。 制备多孔聚酰亚胺膜的方法包括:制备多孔聚酰胺酸膜; 拉伸多孔聚酰胺酸膜以形成拉伸膜; 并且将拉伸的膜酰亚胺化以形成多孔聚酰亚胺膜。 直径约50-300nm的孔的体积大于多孔聚酰亚胺膜中总孔体积的约40%,优选大于75%。

    FABRICATION OF A GRAPHITE FILM BASED ON A POLYIMIDE FILM

    公开(公告)号:US20180127561A1

    公开(公告)日:2018-05-10

    申请号:US15372026

    申请日:2016-12-07

    Abstract: A polyimide film suitable for use in the fabrication of a graphite layer includes a polyimide derived from reaction of diamine monomers with dianhydride monomers, and a foaming agent incorporated in the polyimide. Moreover, a process of fabricating a graphite film includes providing a polyamic acid solution formed by reaction of diamine monomers with dianhydride monomers, incorporating a foaming agent into the polyamic acid solution, forming a polyimide film from the polyamic acid solution, applying a first thermal treatment so that the polyimide film is carbonized to form a carbon film, and applying a second thermal treatment so that the carbon film is converted to a graphite film.

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