POROUS PEEK ELEMENT AS AN IMPLANT
    85.
    发明申请
    POROUS PEEK ELEMENT AS AN IMPLANT 审中-公开
    POROUS PEEK ELEMENT作为种植体

    公开(公告)号:WO2011076971A3

    公开(公告)日:2011-10-06

    申请号:PCT/ES2010070867

    申请日:2010-12-23

    Abstract: The invention relates to a porous PEEK polymer element having a porous PEEK polymer structure and at least one trimodal pore distribution. The invention also relates to a method for producing said porous PEEK polymer element, according to which: a) a PEEK polymer is brought into contact with a composition comprising at least one organic solvent, b) the polymer and composition are heated to a temperature at which the PEEK polymer dissolves, c) at least one pore-forming agent is added, d) the mixture produced in c) is cooled to a temperature at least equal to, or lower than, the temperature at which the PEEK polymer precipitates, e) said cooled mixture is shaped to form a shaped object, f) the organic solvent and pore-forming agent are removed, and g) the PEEK polymer element is recovered.

    Abstract translation: 本发明涉及具有多孔PEEK聚合物结构和至少一个三峰孔分布的多孔PEEK聚合物元件。 本发明还涉及制备所述多孔PEEK聚合物元件的方法,其中:a)使PEEK聚合物与包含至少一种有机溶剂的组合物接触,b)将聚合物和组合物加热至 其中加入PEEK聚合物,c)加入至少一种成孔剂,d)将c​​)中产生的混合物冷却到至少等于或低于PEEK聚合物沉淀温度的温度,e )将所述冷却的混合物成形以形成成形物体,f)去除有机溶剂和成孔剂,并且g)回收PEEK聚合物元件。

    METHOD FOR MANUFACTURING ALVEOLATE CELLULOSED PRODUCTS
    89.
    发明申请
    METHOD FOR MANUFACTURING ALVEOLATE CELLULOSED PRODUCTS 审中-公开
    制造胶体纤维素产品的方法

    公开(公告)号:WO1997042259A1

    公开(公告)日:1997-11-13

    申请号:PCT/FR1997000796

    申请日:1997-05-06

    Abstract: The invention discloses a method for manufacturing alveolate cellulose products (sponges, sponge-cloths...), from a cellulose raw material, which comprises: dissolving at least partially the said cellulose raw material in an intrinsic solvent; incorporating, under agitation, into the resulting mixture an effective amount of at least one pore forming agent; the said pore forming agent(s), compatible with the cellulose mixture, being suitable for generating, when their action develops, a macro- and a microporosity; gelling the consistent homogeneous mass thus obtained; treating the said gelled mass under conditions where the dissolved cellulose precipitates and the action of the pore forming agent(s) present develops. The said method is an advantageous alternative to the polluting viscose method. The products obtained have properties quite similar to those of the products obtained by the said viscose method. The said new products are part of the invention.

    Abstract translation: 本发明公开了一种从纤维素原料制造蜂窝状纤维素产品(海绵,海绵布...)的方法,该方法包括:至少部分地将所述纤维素原料溶解在固有溶剂中; 在搅拌下将有效量的至少一种成孔剂并入所得混合物中; 与纤维素混合物相容的所述成孔剂适于在其作用发生时产生大孔和微孔; 凝胶化由此获得的一致均匀质量; 在溶解的纤维素沉淀条件和成孔剂的作用存在的条件下处理所述胶凝物质。 所述方法是污染粘胶法的有利替代方案。 获得的产品具有与通过所述粘胶法获得的产品非常相似的性质。 所述新产品是本发明的一部分。

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