利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.025 秒)

    Polyurethane dispersion and emulsion, sheet-like porous material and production process thereof
    5.
    发明授权
    Polyurethane dispersion and emulsion, sheet-like porous material and production process thereof 失效
    聚氨酯分散体和乳液，片状多孔材料及其制备方法

    公开(公告)号：US4746684A

    公开(公告)日：1988-05-24

    申请号：US49338

    申请日：1987-05-13

    申请人： Katsumi Kuriyama ,  Misao Ichihara ,  Iwao Misaizu ,  Masashi Kashimura

    发明人： Katsumi Kuriyama ,  Misao Ichihara ,  Iwao Misaizu ,  Masashi Kashimura

    IPC分类号： C08J3/09 ,  C08J9/28 ,  C08G18/14

    CPC分类号： C08J9/28 ,  C08J3/09 ,  C08J2375/04

    摘要： A polyurethane dispersion contains (A) an organic solvent, (B) a polyurethane resin having a molecular weight of 20,000-500,000, and (C) fine particles obtained from an active-hydrogen containing polyfunctional compound, which contains functional groups having a molecular weight of 50 or smaller per functional group, and an organic polyisocyanate. The dispersion can be converted into an emulsion by emulsifying water therein. A sheet-like porous material is also obtained by impregnating and/or coating a base material with the emulsion, causing the thus-coated emulsion to gel and then drying the resultant base material. The dispersion has excellent stability. The emulsion can be gelatinized at a relatively high temperature in a rather short period time, thereby permitting efficient production of the sheet-like porous material. The sheet-like material has a very fine porous structure, is excellent in various properties and has superb water vapor transmission characteristics. It is useful as a raw material for various synthetic hides, namely, for clothing, shoes, waterproof cloths, tents, wall paper, flooring, filter media, filters for air conditioners, etc.

    摘要翻译： 聚氨酯分散体含有（A）有机溶剂，（B）分子量为20,000〜500,000的聚氨酯树脂，（C）由含活性氢的多官能化合物得到的微粒，其含有分子量为 每个官能团为50或更小，有机多异氰酸酯。 分散体可以通过在其中乳化水而转化为乳液。 通过用乳液浸渍和/或涂布基材也可以获得片状多孔材料，使得如此涂布的乳液凝胶化，然后干燥所得基材。 分散体具有优异的稳定性。 乳液可以在较短的时间内在较高的温度下胶化，从而可以有效地生产片状多孔材料。 片状材料具有非常细的多孔结构，具有优异的各种性能并且具有极好的水蒸汽透过特性。 作为各种合成皮革的原材料，例如衣服，鞋子，防水布，帐篷，墙纸，地板，过滤介质，空调过滤器等都是有用的。

    Coating compositions
    6.
    发明授权
    Coating compositions 失效
    涂料组合物

    公开(公告)号：US5321083A

    公开(公告)日：1994-06-14

    申请号：US883900

    申请日：1992-05-12

    申请人： Kazuyuki Hanada ,  Iwao Misaizu ,  Katsumi Kuriyama

    发明人： Kazuyuki Hanada ,  Iwao Misaizu ,  Katsumi Kuriyama

    IPC分类号： C08G18/61 ,  C08G18/62 ,  C08G18/70 ,  C08G18/80

    CPC分类号： C08G18/61 ,  C08G18/6279 ,  C08G18/70 ,  C08G18/8054 ,  C08G18/8087 ,  C08G18/809

    摘要： Disclosed herein are coating compositions comprising a fluoropolymer modified with a modifier. The modifier is a reaction product of at least one compound selected from polysiloxane compounds, fluorine-containing compounds and silane coupling agents, each containing at least one reactive organic functional group, with an organic polyisocyanate; and contains at least one free isocyanate group.

    摘要翻译： 本文公开了包含用改性剂改性的含氟聚合物的涂料组合物。 改性剂是至少一种选自聚硅氧烷化合物，含氟化合物和硅烷偶联剂的化合物的反应产物，每种化合物含有至少一个反应性有机官能团，和有机多异氰酸酯; 并含有至少一个游离异氰酸酯基团。