Electrically conductive polymeric biomaterials, the process for their preparation and the use thereof in the biomedical and healthcare field
    1.
    发明授权
    Electrically conductive polymeric biomaterials, the process for their preparation and the use thereof in the biomedical and healthcare field 有权
    导电聚合物生物材料,其制备方法及其在生物医学和保健领域的应用

    公开(公告)号:US07253152B2

    公开(公告)日:2007-08-07

    申请号:US10476854

    申请日:2002-04-29

    IPC分类号: A01N43/04 A61K31/715 C07H1/00

    CPC分类号: A61L27/50 A61L27/48 C08L39/06

    摘要: The present invention concerns the preparation of composite biomaterials constituted by hyaluronic acid and the derivatives thereof in combination with polymers that have electrically conductive properties. In particular, the methods of preparing biomedical devices formed by a two- or three-dimensional polysaccharide matrix and by an electrically conductive membrane. The matrix is constituted by hyaluronic acid derivatives in the form of membranes, woven fabrics, nonwoven felts, meshes, gauzes, guide channels or sponges, while the electrically conductive membrane is constituted by a film of polypyrrole (polymer conductor) in combination with hyaluronic acid or a derivative thereof (doping agent).

    摘要翻译: 本发明涉及由透明质酸及其衍生物与具有导电性质的聚合物组合构成的复合生物材料的制备。 特别是制备由二维或三维多糖基质和导电膜形成的生物医学装置的方法。 该基质由膜,机织织物,非织造毡,网状物,纱布,引导通道或海绵形式的透明质酸衍生物构成,而导电膜由聚吡咯(聚合物导体)与透明质酸组合 或其衍生物(掺杂剂)。

    Process for preparing ionomeric membranes
    2.
    发明授权
    Process for preparing ionomeric membranes 失效
    离聚物膜的制备方法

    公开(公告)号:US07704639B2

    公开(公告)日:2010-04-27

    申请号:US10423027

    申请日:2003-04-25

    IPC分类号: H01M6/16 H01M6/14 H01G9/022

    摘要: A process for preparing membranes formed by (per) fluorinated ionomeric electrolytes salified with the lithium ion, comprising the following steps: a) obtaining of (per) fluorinated polymer membranes, containing —SO2F groups; b) partial or complete salification of (per)fluorinated polymer membranes containing —SO2F groups with basic lithium compounds and final washing with water; c) swelling and contemporaneous drying process of membranes by dipping in a heterogeneous biphasic system of a dipolar aprotic solvent wherein insoluble solid drying agents are dispersed.

    摘要翻译: 一种制备由锂离子盐化的(全)氟化离聚物电解质形成的膜的方法,包括以下步骤:a)获得含有-SO 2 F基团的(全)氟化聚合物膜; b)部分或完全成盐(含)含有-SO 2 F基团的含碱性锂化合物的氟化聚合物膜,并用水最终洗涤; c)通过浸渍在其中分散有不溶性固体干燥剂的偶极非质子溶剂的异质双相体系中的溶胀和同时干燥过程。