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    Method for the production of polymer foams based on reactive polycondensation resins
    61.
    发明申请
    Method for the production of polymer foams based on reactive polycondensation resins 审中-公开
    基于活性缩聚树脂生产聚合物泡沫的方法

    公开(公告)号：US20070197744A1

    公开(公告)日：2007-08-23

    申请号：US10593419

    申请日：2005-03-17

    Applicant: Volker Schadler ,  Daniel Schmidt ,  Axel Weiss

    Inventor： Volker Schadler ,  Daniel Schmidt ,  Axel Weiss

    IPC: C08F2/00

    CPC classification number: C08J9/28 ,  C08J2201/0504 ,  C08J2361/00

    Abstract: Process for producing polymer foams derived from reactive polycondensation resins and having a maximum pore diameter of 1 μm, which comprises: 1) preparing a gelable mixture of the reactive polycondensation resin in a solvent or dispersion medium, 2) preparing an aqueous dispersion comprising polymer particles, 3) mixing the mixture from step 1) with the dispersion from step 2) to give a water-containing gel, and 4) drying the water-containing gel to give the polymer foam, with drying in step 4) being carried out at a pressure and a temperature which are below the critical pressure and below the critical temperature of the liquid phase of the gel and the gel not being brought into contact with an organic liquid to replace the water present in the gel by this liquid after step 3) and before step 4).

    Abstract translation: 用于生产由反应性缩聚树脂衍生的并具有最大孔径为1μm的聚合物泡沫的方法，其包括：1）在溶剂或分散介质中制备反应性缩聚树脂的可凝胶混合物，2）制备包含聚合物颗粒 ，3）将来自步骤1）的混合物与来自步骤2）的分散体混合，得到含水凝胶，4）干燥含水凝胶得到聚合物泡沫体，在步骤4）中干燥，在 压力和温度低于临界压力并且低于凝胶的液相的临界温度，并且凝胶不与有机液体接触以在步骤3之后用该液体代替凝胶中存在的水） 并在步骤4之前）。

    Process to prepare foams from high internal phase emulsions
    64.
    发明授权
    Process to prepare foams from high internal phase emulsions 失效
    从高内相乳液制备泡沫的方法

    公开(公告)号：US5670101A

    公开(公告)日：1997-09-23

    申请号：US591991

    申请日：1996-01-26

    Applicant: Nazim Safarali Nathoo ,  Thomas Fairchild Brownscombe ,  Ronald Marshall Bass

    Inventor： Nazim Safarali Nathoo ,  Thomas Fairchild Brownscombe ,  Ronald Marshall Bass

    IPC: B29C39/14 ,  B29C44/32 ,  B29K105/04 ,  C08J9/28 ,  B29C44/24

    CPC classification number: B29C44/32 ,  C08J9/283 ,  C08J2201/028 ,  C08J2201/0504

    Abstract: A process is provided for curing a high internal phase emulsion to form a porous crosslinked polymeric material is provided, comprising the steps of: forming a high internal phase emulsion having at least one curable phase; providing a continuous strip of a polymeric film wherein the polymeric film is incompatible with each of the phases of the emulsion; placing at least a portion of the emulsion continuously on the polymeric film; closing the polymeric film around the film; and curing the emulsion within the polymeric film. Apparatuses to perform this process are also disclosed.

    Abstract translation: 提供了一种用于固化高内相乳液以形成多孔交联聚合物材料的方法，包括以下步骤：形成具有至少一个可固化相的高内相乳液; 提供聚合物膜的连续带，其中聚合物膜与乳液的每个相不相容; 将乳液的至少一部分连续地放置在聚合物膜上; 封闭膜周围的聚合膜; 并在聚合物膜内固化乳液。 还公开了执行该过程的装置。

    Spongy material consisting essentially of hyaluronic acid or its derivatives, and its use in microsurgery
    65.
    发明授权
    Spongy material consisting essentially of hyaluronic acid or its derivatives, and its use in microsurgery 失效
    主要由透明质酸或其衍生物组成的海绵材料及其在显微手术中的应用

    公开(公告)号：US5503848A

    公开(公告)日：1996-04-02

    申请号：US925073

    申请日：1992-08-05

    Applicant: Alberto Perbellini ,  Gino Toffano ,  Aurelio Romeo

    Inventor： Alberto Perbellini ,  Gino Toffano ,  Aurelio Romeo

    IPC: A61F11/00 ,  A61K9/00 ,  A61K9/70 ,  A61K31/715 ,  A61K47/36 ,  A61L15/28 ,  A61L15/42 ,  A61L31/04 ,  A61P1/02 ,  A61P17/00 ,  A61P25/02 ,  A61P27/16 ,  C08J9/28 ,  A61K31/725

    CPC classification number: C08J9/28 ,  A61L15/28 ,  A61L15/425 ,  A61L31/042 ,  C08J2201/0504 ,  C08J2305/08 ,  Y10S424/07

    Abstract: The present invention relates to a new spongy material consisting essentially of hyaluronic acid or its derivatives. The characteristics of the new pharmaceutical preparations consist in assuring high concentrations of active principle for a long period of time, by exploiting the characteristics of slow release of the active principle.The new pharmaceutical preparations can be utilized advantageously in all the numerous situations of microsurgical practice (in particular the ones relating to ear or in odontostomatology), in which it is necessary to use a substance that can be metabolized by the organism and is capable of making easier flap take, reepithelialization of mucous membranes, stabilization of grafts and filling of cavities.The specific use of the new pharmaceutical preparations is particularly important and useful in the various ear pathologies and in the practice of otologic, otoneurosurgical and odontostomatological microsurgery, such as for instance repair of tympanic perforations.

    Abstract translation: 本发明涉及基本上由透明质酸或其衍生物组成的新的海绵状物质。 新型药物制剂的特点是通过开发活性成分缓释的特点，长期保证高浓度的活性成分。 新的药物制剂可以有利地用于显微手术实践（特别是涉及耳朵或牙齿病学）的所有许多情况，其中有必要使用可由生物体代谢并且能够制造的物质 更容易的皮瓣，粘膜的再上皮化，移植物的稳定和腔的填充。 新的药物制剂的具体用途在各种耳朵病理学和耳蜗外科手术和牙周病学显微外科学的实践中是特别重要和有用的，例如鼓膜穿孔的修复。

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