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    Process for purification and isolation of diaminophenylindane
    2.
    发明授权
    Process for purification and isolation of diaminophenylindane 失效
    二氨基苯二氢茚的纯化和分离方法

    公开(公告)号：US4454347A

    公开(公告)日：1984-06-12

    申请号：US465744

    申请日：1983-02-11

    申请人： Marc E. Parham ,  Stephen A. Spearman ,  Gleason O. Cookson

    发明人： Marc E. Parham ,  Stephen A. Spearman ,  Gleason O. Cookson

    IPC分类号： C07C209/86 ,  C07C67/00 ,  C07C209/00 ,  C07C211/45 ,  C07C211/54 ,  C07C85/26

    CPC分类号： C07C209/84

    摘要： Crystalline 5(6)-amino-1-(4-aminophenyl)-1,3,3-trimethylindane is made by crystallizing the diamino reaction mass from a toluene/heptane solution. The material has been previously purified through a combination of acetic acid washing and treatment with acidic clay. The diamino material, also known as DAPI, is a potential stabilizer, curing agent, and one of the monomers used to produce a polyimide resin.

    摘要翻译： 通过使二氨基反应物质从甲苯/庚烷溶液中结晶来制备结晶5（6） - 氨基-1-（4-氨基苯基）-1,3,3-三甲基茚满。 先前通过乙酸洗涤和用酸性粘土处理的组合来纯化该物质。 二氨基物质，也称为DAPI，是潜在的稳定剂，固化剂和用于生产聚酰亚胺树脂的单体之一。

    Battery separator
    5.
    发明授权
    Battery separator 失效
    电池分离器

    公开(公告)号：US5362581A

    公开(公告)日：1994-11-08

    申请号：US41085

    申请日：1993-04-01

    申请人： Victor S. Chang ,  Richard C. Hartwig ,  Joseph T. Lundquist ,  Marc E. Parham ,  Anthony J. Laccetti

    发明人： Victor S. Chang ,  Richard C. Hartwig ,  Joseph T. Lundquist ,  Marc E. Parham ,  Anthony J. Laccetti

    IPC分类号： H01M2/14 ,  H01M2/16

    CPC分类号： H01M2/14 ,  H01M2/1653

    摘要： A battery separator composed of a microporous sheet product having first and second major surfaces and a thickness of less than about 50 mils, formed from a uniform mixture of a polycarbonate polymer and a filler or a polycarbonate and a structure enhancing agent, said sheet product having a porous sheet embedded within said mixture and between the first and second major surfaces. The porosity of the sheet product is at least about 50 volume percent composed of pores such that the nominal pore diameter increases incrementally from each major surface towards the interior central portion of the sheet product's thickness.

    摘要翻译： 一种由聚碳酸酯聚合物和填料或聚碳酸酯和结构增强剂的均匀混合物形成的具有第一和第二主表面的厚度小于约50密耳的微孔板产品的电池隔板，所述片材产品具有 嵌入所述混合物内并在第一和第二主表面之间的多孔片。 片材产品的孔隙率为由孔组成的至少约50体积％，使得标称孔径从片材产品厚度的每个主表面向内部中心部分逐渐增加。