多孔質ポリイミド膜及びその製造方法
    122.
    发明申请
    多孔質ポリイミド膜及びその製造方法 审中-公开
    多孔聚酰胺薄膜及其制造方法

    公开(公告)号:WO2010038873A1

    公开(公告)日:2010-04-08

    申请号:PCT/JP2009/067266

    申请日:2009-10-02

    Abstract:  2つの表面層(a)及び(b)と、当該表面層(a)及び(b)の間に挟まれたマクロボイド層とを有する三層構造の多孔質ポリイミド膜であって、前記マクロボイド層は、前記表面層(a)及び(b)に結合した隔壁と、当該隔壁並びに前記表面層(a)及び(b)に囲まれた、膜平面方向の平均孔径が10~500μmである複数のマクロボイドとを有し、前記のマクロボイド層の隔壁、並びに前記表面層(a)及び(b)はそれぞれ、厚さが0.1~50μmであり、平均孔径0.01~5μmの複数の細孔を有し、当該細孔同士が連通し更に前記マクロボイドに連通しており、総膜厚が5~500μmであり、空孔率が70~95%である、多孔質ポリイミド膜。

    Abstract translation: 一种多孔聚酰亚胺膜,其具有由两个表面层(a)和(b)组成的三层结构和夹在其间的大孔隙层。 大孔隙层包括连接到表面层(a)和(b)的两个分隔壁和由分隔壁和表面层(a)和(b)包围的多个宏观空隙,其中所述 膜平面方向的大孔隙为10〜500μm。 分隔壁和表面层(a)和(b)各自具有0.1〜50μm的厚度,并且各自含有平均孔径为0.01〜5μm的多个孔。 孔隙彼此互相连接,并与微孔隙相互连接。 膜的总厚度为5〜500μm,空隙率为70〜95%。

    MANUFACTURING PROCESS FOR POROUS MATERIAL
    124.
    发明申请
    MANUFACTURING PROCESS FOR POROUS MATERIAL 审中-公开
    多孔材料的制造工艺

    公开(公告)号:WO02053598A3

    公开(公告)日:2002-10-17

    申请号:PCT/EP0115014

    申请日:2001-12-19

    Abstract: A method for the manufacture of a solid porous separation material based on a polysaccharide, said method comprising the steps of: (a) providing an aqueous solution (I) of a polysaccharide, (b) solidifying the solution, preferably by transforming the solution to a gel, and (c) optionally cross-linking the polysaccharide, with the proviso that, if step (c) is present, steps (b) and (c) may be carried out simultaneously.The method is characterised in that the polysaccharide provided in step (a) is modified by being inter-molecularly cross-linked to an extent such that the viscosity of solution (I) is at least 110%, preferably at least 200%, of the viscosity of an aqueous solution (II) of the corresponding polysaccharide which has not been inter-molecularly cross-linked and which is present in the same concentration as the inter-molecularly cross-linked polysaccharide is in solution (I).

    Abstract translation: 一种制备基于多糖的固体多孔分离材料的方法,所述方法包括以下步骤:(a)提供多糖的水溶液(I),(b)固化溶液,优选通过将溶液转化为 凝胶,和(c)任选地交联多糖,条件是如果存在步骤(c),则可以同时进行步骤(b)和(c)。该方法的特征在于所提供的多糖 在步骤(a)中通过分子内交联使得溶液(I)的粘度至少为110重量%,优选至少为200重量%的水溶液(II)的粘度 未分子间交联并且与分子内交联的多糖以相同浓度存在的相应多糖在溶液(I)中。

    METHOD FOR PREPARING POLYURETHANE SUPPORT PAD
    128.
    发明公开
    METHOD FOR PREPARING POLYURETHANE SUPPORT PAD 有权
    VERFAHREN ZUR HERSTELLUNG EINESPOLYURETHANSTÜTZKISSENS

    公开(公告)号:EP2998344A1

    公开(公告)日:2016-03-23

    申请号:EP14850175.2

    申请日:2014-10-01

    Applicant: LG Chem, Ltd.

    Abstract: This disclosure relates to a method for preparing a polyurethane mounting pad comprising the steps of: wet-solidifying a resin composition comprising polyurethane resin and a DMF solvent; and immersing the wet-solidified product in an aqueous solution comprising an acid catalyst or a base catalyst. According to the present invention, long and large pores may be uniformly formed inside of the prepared pad, thus affording low hardness, excellent compressibility, and the like, and more uniform thickness, pressure distribution or tension distribution and the like may be exhibited over the whole area of the pad, thus providing a polyurethane mounting pad that can realize more uniform and high efficiency polishing.

    Abstract translation: 本公开涉及一种制备聚氨酯安装垫的方法,包括以下步骤:将包含聚氨酯树脂和DMF溶剂的树脂组合物湿固化; 并将湿固化的产品浸入包含酸催化剂或碱催化剂的水溶液中。 根据本发明,可以在制备的衬垫内部均匀地形成长孔和大孔,从而提供低硬度,优异的压缩性等,并且可以显示更均匀的厚度,压力分布或张力分布等 从而提供可以实现更均匀和高效抛光的聚氨酯安装垫。

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