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    Thermally induced phase separated azlactone membrane
    81.
    发明授权
    Thermally induced phase separated azlactone membrane 失效
    热诱导相分离吖内酯膜

    公开(公告)号：US6063484A

    公开(公告)日：2000-05-16

    申请号：US996681

    申请日：1997-12-23

    Applicant: Bert J. Exsted ,  Steven L. Kangas

    Inventor： Bert J. Exsted ,  Steven L. Kangas

    IPC: B01D15/08 ,  B01D67/00 ,  B01D71/44 ,  B01D71/78 ,  C08J9/00 ,  C08J9/28 ,  B32B3/10

    CPC classification number: C08J9/28 ,  B01D67/0027 ,  B01D67/003 ,  B01D71/44 ,  B01D71/78 ,  B01D2323/08 ,  B01D2323/24 ,  B01D71/26 ,  B01D71/62 ,  C08J2201/0543 ,  C08J2201/0546 ,  Y10T428/249978 ,  Y10T428/249979

    Abstract: The present invention provides a microporous material or a membrane in which the membrane includes an azlactone moiety which is blended with or grafted to a thermoplastic polymer to provide a porous material having an internal structure characterized by a multiplicity of spaced, randomly disposed, non-uniform shaped, equiaxed particles of the polyazlactone polymer/thermoplastic polymer blends or the azlactone-graft copolymer. Each of the adjacent particles throughout the material are separated from one another to provide said material with a network of interconnected micropores and each of the particles are connected to each other by a plurality of fibrils. In addition to unmodified azlactone membranes, membranes which have been modified by subsequent reaction of the azlactone moiety with a suitable nucleophile are also included within the scope of the present invention. Preferred nucleophiles capable of reacting with an azlactone membrane of this invention include biologically significant nucleophiles such as amines, thiols and alcohols as well as amino acids, nucleic acids and proteins.

    Abstract translation: 本发明提供了一种微孔材料或膜，其中膜包括偕根酮部分，其与热塑性聚合物共混或接枝到热塑性聚合物上，以提供具有内部结构的多孔材料，其特征在于多个间隔开的，随机排列的，不均匀的 聚硅烷内酯聚合物/热塑性聚合物共混物或吖内酯接枝共聚物的等轴晶粒。 整个材料中的每个相邻颗粒彼此分离，以使所述材料具有互连微孔的网络，并且每个颗粒通过多个原纤维彼此连接。 除了未改性的吖内酯膜之外，已经通过吖内酯部分与合适的亲核试剂的后续反应进行了修饰的膜也包括在本发明的范围内。 能够与本发明的吖内酯膜反应的优选的亲核试剂包括生物显着的亲核试剂例如胺，硫醇和醇以及氨基酸，核酸和蛋白质。

    Porous fibers and membranes and methods for their preparation and use
    84.
    发明授权
    Porous fibers and membranes and methods for their preparation and use 失效
    多孔纤维和膜及其制备和使用的方法

    公开(公告)号：US4744906A

    公开(公告)日：1988-05-17

    申请号：US785324

    申请日：1985-10-04

    Applicant: Klaus Gerlach ,  Erich Kessler

    Inventor： Klaus Gerlach ,  Erich Kessler

    IPC: B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B29C67/20 ,  C08J9/28 ,  D01D5/24 ,  D01D5/247 ,  B01D13/00

    CPC classification number: B01D71/26 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D69/087 ,  B29C67/205 ,  C08J9/28 ,  D01D5/24 ,  D01D5/247 ,  C08J2201/0543 ,  C08J2201/0546

    Abstract: The invention concerns porous fibers and membranes, methods for their preparation and for their use. The fibers are characterized by a smooth porous surface and an apparent density of between about 10 to 90% of the true density of the polymeric starting material employed. The process involves the formation of a homogeneous mixture of at least two components, one of which is a meltable polymer and another liquid inert with respect to the polymer. The mixture formed must be of a binary type, in which there is a temperature range of complete miscibility and a range in which there is a miscibility gap. The mixture is extruded at a temperature above the separation temperature into a bath containing at least some of the inert liquid which is at a temperature below the separation temperature. Upon introduction of the mixture into the bath, the fiber structure of the product is fixed.

    Abstract translation: 本发明涉及多孔纤维和膜，其制备方法和用途。 纤维的特征在于光滑的多孔表面和表观密度为所用聚合物原料的真实密度的约10至90％。 该方法包括形成至少两种组分的均匀混合物，其中一种是可熔融聚合物，另一种是相对于聚合物惰性的液体。 形成的混合物必须是二元型，其中存在完全混溶性的温度范围和存在混合间隙的范围。 将混合物在高于分离温度的温度下挤出至含有至少一些惰性液体的浴中，该惰性液体的温度低于分离温度。 当将混合物引入浴中时，产品的纤维结构是固定的。

    Process for producing micro-porous membrane of ultra-high-molecular-weight alpha-olefin polymer, micro-porous membranes and process for producing film of ultra-high-molecular-weight alpha-olefin polymer
    85.
    发明授权
    Process for producing micro-porous membrane of ultra-high-molecular-weight alpha-olefin polymer, micro-porous membranes and process for producing film of ultra-high-molecular-weight alpha-olefin polymer 失效
    用于生产超高分子量α-烯烃聚合物微孔膜的方法，微孔膜和用于生产超高分子量α-烯烃聚合物膜的方法

    公开(公告)号：US4734196A

    公开(公告)日：1988-03-29

    申请号：US832916

    申请日：1986-02-24

    Applicant: Koichi Kono ,  Shoichi Mori ,  Kenji Miyasaka ,  Jyoichi Tabuchi

    Inventor： Koichi Kono ,  Shoichi Mori ,  Kenji Miyasaka ,  Jyoichi Tabuchi

    IPC: B01D67/00 ,  B01D71/26 ,  C08J5/18 ,  C08J9/28 ,  B29C43/00 ,  B29C55/12

    CPC classification number: C08J9/28 ,  B01D67/0009 ,  B01D71/26 ,  C08J5/18 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/34 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02

    Abstract: A micro-porous membrane of ultra-high-molecular-weight alpha-olefin polymer having a weight-average molecular weight greater than 5.times.10.sup.5, the micro-porous membrane having through holes 0.01 to 1 micrometer in average pore size, with a void ratio from 30 to 90% and being oriented such that the linear draw ratio in one axis is greater than two and the areal draw ratio is greater than ten. The micro-porous membrane is obtained by forming a gel-like object from a solution of an alpha-olefin polymer having a weight-average molecular weight greater than 5.times.10.sup.5, removing at least 10 wt % of the solvent contained in the gel-like object so that the gel-like object contains 10 to 90 wt % of alpa-olefin polymer, orientating the gel-like object at a temperature lower than that which is 10.degree. C. above the melting point of the alpa-olefin polymer, and removing the residual solvent from the orientated product. A film is produced from the orientated product by pressing the orientated product at a temperature lower than that of the melting point of the alpha-olefin polymer.

    Abstract translation: 超高分子量α-烯烃聚合物的微孔膜的重均分子量大于5×10 5，微孔膜具有平均孔径为0.01-1微米的通孔，孔隙率为 30〜90％，一方向的线性拉伸比大于2，面积比大于10。 微孔膜通过从重均分子量大于5×10 5的α-烯烃聚合物的溶液中形成凝胶状物质，除去至少10重量％的凝胶状物质中所含的溶剂 使得凝胶状物体含有10〜90重量％的α-烯烃聚合物，使凝胶状物质的温度低于高于α-烯烃聚合物的熔点10℃的温度，除去 来自定向产物的残留溶剂。 通过在比α-烯烃聚合物的熔点低的温度下压制定向产物，从定向产物制备膜。

    Microporous film battery separator
    86.
    发明授权
    Microporous film battery separator 失效
    微孔膜电池隔膜

    公开(公告)号：US4210709A

    公开(公告)日：1980-07-01

    申请号：US929983

    申请日：1978-08-01

    Applicant: Yoshinao Doi ,  Osamu Fugii ,  Shigeo Kaneko ,  Takeo Hanamura

    Inventor： Yoshinao Doi ,  Osamu Fugii ,  Shigeo Kaneko ,  Takeo Hanamura

    IPC: C08J9/28 ,  H01M2/16

    CPC classification number: C08J9/28 ,  H01M2/1653 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02 ,  H01M2300/0005

    Abstract: A microporous film which comprises a matrix comprising 40 to 90 volume percent of a polyolefin having a number average molecular weight of 15,000 or more and 10 to 60 volume percent of an inorganic filler, said matrix having therein void spaces at a rate of 30 to 75 volume percent based on the volume of the film; and 2 to 20 weight percent, based on the total weight of the polyolefin and the inorganic filler, of an organic substance which is substantially insoluble in and inert to sulfuric acid and has a solubility parameter ranging from 7.3 inclusive to 8.4 exclusive; said organic substance, in its majority, adhering to the overall surface of the film including the outer surfaces of the film and the surfaces of the polyolefin walls defining said void spaces in cooperation with said inorganic filler.

    Abstract translation: 一种微孔膜，其包含基质，其包含40至90体积％的数均分子量为15,000以上且10至60体积％的无机填料的聚烯烃，所述基质具有30至75的空隙空间 体积百分比基于电影的数量; 和基于聚烯烃和无机填料的总重量的2至20重量％的基本上不溶于硫酸并且对硫酸具有惰性的有机物质，其溶解度参数范围为7.3以上8.4以下; 所述有机物质在大多数情况下，与所述无机填料配合，附着在膜的整个表面上，包括膜的外表面和限定所述空隙空间的聚烯烃壁的表面。

    Process for preparing microporous cellular polymeric structures
    87.
    发明授权
    Process for preparing microporous cellular polymeric structures 失效
    制备微孔聚合物结构的方法

    公开(公告)号：US3748287A

    公开(公告)日：1973-07-24

    申请号：US3748287D

    申请日：1971-09-01

    Applicant: DU PONT

    Inventor： LEE K

    IPC: C08J9/28 ,  B29D27/04

    CPC classification number: C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546

    Abstract: A PROCESS FOR PREPARING MICROPOROUS CELLULAR POLYMERIC STRUCTURES WHICH COMPRISES (A) DISSOLVING THE STARTING POLYMER IN A NON-AQUEOUS SOLVENT; (B) ADDING THERETO A CHLOROFLUOROCARBON TO FORM A DISPERSION OF POLYMER IN SOLVENT; (C) FORMING SAID POLYMER DISPERSION INTO A REGULAR CONTINUOUS STRUCTURE; (D) REMOVING THE SOLVENT FROM THE POLYMER DISPERSION STRUCTURE; AND (E) REMOVING THE CHLOROFLUOROCARBON FROM THE STRUCTURE.

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