中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

88 records (took 0.016 seconds)

    POROUS POLYIMIDE MEMBRANE AND PROCESS FOR PRODUCTION OF SAME
    34.
    发明申请
    POROUS POLYIMIDE MEMBRANE AND PROCESS FOR PRODUCTION OF SAME 有权
    多孔聚酰胺薄膜及其制造方法

    公开(公告)号：US20110318556A1

    公开(公告)日：2011-12-29

    申请号：US13121830

    申请日：2009-10-02

    Applicant: Shyusei Ohya ,  Makoto Matsuo

    Inventor： Shyusei Ohya ,  Makoto Matsuo

    IPC: H01M2/16 ,  B32B3/26 ,  H01M2/18 ,  B32B7/02 ,  H01G9/02

    CPC classification number: C08L79/08 ,  B01D71/64 ,  C08J9/28 ,  C08J2201/0544 ,  C08J2379/08 ,  C08L25/06 ,  C08L31/04 ,  C08L33/12 ,  Y10T428/24975 ,  Y10T428/249961 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/24998 ,  Y10T428/249981 ,  C08L2666/06 ,  C08L2666/08

    Abstract: Disclosed is a porous polyimide membrane of a three-layer structure having two surface layers (a) and (b) and a macrovoid layer interposed between the surface layers (a) and (b), wherein the macrovoid layer has a partition wall joined to the surface layers (a) and (b) and plural macrovoids surrounded by the partition wall and the surface layers (a) and (b), with an average void diameter in a membrane plane direction of from 10 to 500 μm; each of the partition wall of the macrovoid layer and the surface layers (a) and (b) has a thickness of from 0.1 to 50 μm and has plural pores having an average pore diameter of from 0.01 to 5 μm, the pores being communicated with each other and also communicated with the macrovoids; and the membrane has a total membrane thickness of from 5 to 500 μm and a porosity of from 70 to 95%.

    Abstract translation: 公开了具有两个表面层（a）和（b）的三层结构的多孔聚酰亚胺膜和介于表面层（a）和（b）之间的大孔层，其中大孔层具有连接到 表面层（a）和（b）以及由隔壁和表面层（a）和（b）包围的多个大孔，膜平面方向的平均孔径为10〜500μm; 大孔层的分隔壁和表面层（a）和（b）的厚度为0.1〜50μm，具有平均孔径为0.01〜5μm的多孔，孔与 彼此之间，并与大空隙沟通; 膜的总膜厚为5〜500μm，孔隙率为70〜95％。

    Method for preparing an open porous polymer material and an open porous polymer material
    36.
    发明申请
    Method for preparing an open porous polymer material and an open porous polymer material 有权
    制备开孔多孔聚合物材料和开孔多孔聚合物材料的方法

    公开(公告)号：US20040077739A1

    公开(公告)日：2004-04-22

    申请号：US10451989

    申请日：2003-12-05

    Inventor： Per Flodin ,  Carl-Johann Aurell

    IPC: B29C067/20 ,  C08J009/00

    CPC classification number: C08J9/26 ,  A61L27/56 ,  C08G18/10 ,  C08G18/4277 ,  C08G2101/0058 ,  C08J9/28 ,  C08J2201/0422 ,  C08J2201/0544 ,  C08J2205/05 ,  C08J2375/02 ,  C08G18/3228 ,  C08G18/3271

    Abstract: The present invention relates to a method for preparing an open pourous polymer material, wherein said method comprises forming or a polymer solution, addition of a porogen to said polymer solution and precipitation with water of polymer from said polymer solution, and said method then comprises removal of solvent and porogen from said polymer material wherein said precipitation is homogenous through that said water is in form of crystal water and that said crystal water is bonded to said porogen, wherein said porogen is a sugar hydrate. It further relates to an open porous polymer material, a mixture comprising a sugar hydrate and a polymer solution. and a designed material, and uses thereof.

    Abstract translation: 本发明涉及一种制备开放聚合物材料的方法，其中所述方法包括形成或聚合物溶液，向所述聚合物溶液中加入致孔剂并用聚合物溶液中的聚合物水进行沉淀，然后所述方法包括除去 的溶剂和致孔剂，其中所述沉淀是均匀的，因为所述水是结晶水的形式，并且所述结晶水与所述致孔剂结合，其中所述致孔剂是糖水合物。 它还涉及开放的多孔聚合物材料，包含糖水合物和聚合物溶液的混合物。 和设计材料及其用途。

    Microcellular foams
    38.
    发明授权
    Microcellular foams 失效
    微孔泡沫

    公开(公告)号：US5252620A

    公开(公告)日：1993-10-12

    申请号：US862521

    申请日：1992-04-02

    Applicant: Jarrell R. Elliott, Jr. ,  Gokul Srinivasan ,  Manish Dhanuka ,  Ranjan Akhaury

    Inventor： Jarrell R. Elliott, Jr. ,  Gokul Srinivasan ,  Manish Dhanuka ,  Ranjan Akhaury

    IPC: C08J9/28

    CPC classification number: C08J9/28 ,  C08J2201/05 ,  C08J2201/0544

    Abstract: Supercritical drying has distinct advantages in generating microcellular materials. The dimensional stability of the polymer is not affected on drying because the supercritical process does not go through the two phase path and therefore the effect of capillary forces is absent. This helps in maintaining the morphology of the final polymer structure and better control over cell size.Organic microcellular foams were prepared by polymerizing directly in a near-critical fluid and pursuing the supercritical drying in the same reactor. The critical variables are the choice of a diluent with a strong enough solvent power to stabilize the polymer matrix, but with a low enough critical temperature to permit critical point drying without damage to the polymer matrix.

    Abstract translation: 超临界干燥在产生微孔材料方面具有明显的优势。 聚合物的尺寸稳定性不受干燥影响，因为超临界过程不经过两相路径，因此不存在毛细管作用。 这有助于维持最终聚合物结构的形态并更好地控制细胞的大小。 通过在近临界流体中直接聚合并在同一反应器中进行超临界干燥来制备有机微孔泡沫。 关键变量是选择具有足够强的溶剂能力的稀释剂以稳定聚合物基质，但具有足够低的临界温度以允许临界点干燥而不损坏聚合物基质。

    Method of producing plastic sheet with porous surface
    39.
    发明授权
    Method of producing plastic sheet with porous surface 失效
    生产具有多孔表面的塑料片的方法

    公开(公告)号：US4849457A

    公开(公告)日：1989-07-18

    申请号：US011121

    申请日：1987-02-05

    Applicant: Masaru Ichii ,  Shigeru Tani ,  Kozo Fukuda

    Inventor： Masaru Ichii ,  Shigeru Tani ,  Kozo Fukuda

    IPC: B05D3/10 ,  B05D7/24 ,  B41M5/035 ,  B41M5/382 ,  B41M5/50 ,  B41M5/52 ,  C08J7/04 ,  C08J9/28

    CPC classification number: C08J9/28 ,  B41M5/035 ,  C08J7/047 ,  C08J2201/0544

    Abstract: A method of producing a plastic sheet with a porous surface layer suitable for use as, for example, a recording medium on which characters and images are printed by ink jet or thermal-transfer printing method. The method comprises preparing a solution by dissolving two or more kinds of plastics having low levels of miscibility to each other in a solvent, applying said solution to a substrate, passing said substrate with said solution applied thereto through a liquid which dissolves said solvent but does not dissolve said plastics thereby solidifying said plastics, and drying said substrate with the solidified plastic layer. Preferably, two or more kinds of plastics having low levels of miscibility to each other include mainly a material A which is vinyl chloride or its compolymer and a material B which is acrylonitrile or its copolymer.

    Abstract translation: 一种生产具有多孔表面层的塑料片的方法，该多孔表面层适用于例如通过喷墨或热转印打印方法印刷字符和图像的记录介质。 该方法包括通过将两种或更多种混溶性低的塑料溶解在溶剂中来制备溶液，将所述溶液施加到基底上，使所述底物通过溶解所述溶剂的液体将所述溶液通过所述溶液，但是 不溶解所述塑料，从而使所述塑料固化，并用固化的塑料层干燥所述基材。 优选地，彼此相互混溶性低的两种或更多种塑料主要包括作为氯乙烯或其聚合物的材料A和作为丙烯腈或其共聚物的材料B.

    Microcellular heterocyclic polymer structures
    40.
    发明授权
    Microcellular heterocyclic polymer structures 失效
    微细胞杂环聚合物结构

    公开(公告)号：US4262094A

    公开(公告)日：1981-04-14

    申请号：US60084

    申请日：1979-07-24

    Applicant: Burnett H. Johnson

    Inventor： Burnett H. Johnson

    IPC: C08J9/28

    CPC classification number: C08J9/28 ,  C08J2201/0544

    Abstract: Highly useful novel microcellular polymeric structures, especially films and fibers, are prepared from certain solid polymers. Aromatic polysulfones, polyimides, polyhydantoins, polyamides and polyparabanic acid are the preferred ones for the novel structures of the invention.

    Abstract translation: 高效的新型微孔聚合物结构，特别是膜和纤维，由某些固体聚合物制备。 芳族聚砜，聚酰亚胺，聚乙内酰脲，聚酰胺和聚对苯二甲酸是本发明新型结构的优选的。

Patent Agency Ranking