METHOD FOR PRODUCING POROUS EPOXY RESIN SHEET
    4.
    发明申请
    METHOD FOR PRODUCING POROUS EPOXY RESIN SHEET 审中-公开
    生产多孔环氧树脂片的方法

    公开(公告)号:US20130248442A1

    公开(公告)日:2013-09-26

    申请号:US13991695

    申请日:2011-12-05

    Abstract: Provided is a porous epoxy resin sheet produced by cutting a cured epoxy resin body to a predetermined thickness, the porous epoxy resin sheet having a large surface area and a uniform in-plane pore size distribution. A method for producing a porous epoxy resin sheet, comprising forming a cylindrical or columnar cured resin body from a resin mixture containing an epoxy resin, a curing agent, and a porogen, cutting the surface of the cured resin body at a predetermined thickness to make an epoxy resin sheet, and then removing the porogen from the sheet to render the sheet porous, wherein when the cured resin body is formed from the resin mixture, curing is performed in a state where the viscosity of the mixture is at least 1,000 mPa·s.

    Abstract translation: 本发明提供一种通过将固化的环氧树脂体切割成预定厚度而生产的多孔环氧树脂片,具有大的表面积和均匀的面内孔径分布的多孔环氧树脂片。 一种多孔环氧树脂片的制造方法,其特征在于,包括由含有环氧树脂,固化剂,致孔剂的树脂混合物形成圆筒状或柱状的固化树脂体,将树脂固化体的表面切割成规定的厚度, 环氧树脂片,然后从片材中除去致孔剂以使片材多孔,其中当由树脂混合物形成固化树脂体时,在混合物的粘度至少为1000mPa·s的状态下进行固化 s。

    PROCESS FOR PRODUCTION OF POROUS MEMBRANE
    10.
    发明申请
    PROCESS FOR PRODUCTION OF POROUS MEMBRANE 有权
    生产多孔膜的方法

    公开(公告)号:US20130049246A1

    公开(公告)日:2013-02-28

    申请号:US13261454

    申请日:2011-04-05

    Abstract: Disclosed is a process for production of a porous membrane that includes the steps of layering a film-forming dope that contains a polymer (A) that forms a membrane base, a polyvinylpyrrolidone (B) and a solvent (C) into a single layer or two or more layers; immersing the film-forming dope in a solidifying fluid that is a non-solvent with respect to the polymer (A) and is a good solvent with respect to the polyvinylpyrrolidone (B); and removing the polyvinylpyrrolidone (B), wherein the polyvinylpyrrolidone (B) has a K value of 50 to 80, a mass ratio r of the polyvinylpyrrolidone (B) to the polymer (A) is 0.5 or more and less than 1, and the viscosity of the film-forming dope at a membrane production temperature is 100 to 500 Pa·s. Accordingly, by using an appropriate amount of a low-molecular-weight hydrophilic polymer capable of being easily removed, it is possible to produce a porous membrane of a three-dimensional network structure in which macrovoids are suppressed, having high water permeability and superior filtration performance.

    Abstract translation: 公开了一种生产多孔膜的方法,其包括以下步骤:将含有形成膜基的聚合物(A),聚乙烯吡咯烷酮(B)和溶剂(C))的成膜原液分层成单层或 两层或多层; 将成膜原液浸渍在相对于聚合物(A)为非溶剂的凝固液中,相对于聚乙烯吡咯烷酮(B)为良好的溶剂; 除去聚乙烯吡咯烷酮(B),其中聚乙烯吡咯烷酮(B)的K值为50〜80,聚乙烯吡咯烷酮(B)与聚合物(A)的质量比r为0.5以上且小于1, 膜生成温度下的成膜原液的粘度为100〜500Pa·s。 因此,通过使用能够容易地除去的适量的低分子量亲水性聚合物,可以制造出抑制大孔,具有高透水性和优异过滤性的三维网状结构的多孔膜 性能。

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