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48 条记录 (耗时 0.021 秒)

    Process of making a magnetic recording media
    3.
    发明授权
    Process of making a magnetic recording media 失效
    制作磁记录媒体的过程

    公开(公告)号：US4310565A

    公开(公告)日：1982-01-12

    申请号：US150181

    申请日：1980-05-15

    申请人： August Lehner ,  Heinrich Hartmann ,  Rudolf Bachmann ,  Albert Kohl ,  Herbert Spoor ,  Karl Mahler ,  Werner Balz

    发明人： August Lehner ,  Heinrich Hartmann ,  Rudolf Bachmann ,  Albert Kohl ,  Herbert Spoor ,  Karl Mahler ,  Werner Balz

    IPC分类号： G11B5/70 ,  C09D5/23 ,  G11B5/702 ,  G11B5/842 ,  B05D5/12

    CPC分类号： G11B5/7021

    摘要： A process for the manufacture of magnetic recording media, comprising a non-magnetic base and, applied thereto, one or more magnetizable layers, consisting of an anisotropic magnetic material finely dispersed in an organic binder, wherein the binder contains at least 40% of an aqueous ionomeric polyurethane dispersion which at 50.degree. C. forms films having a modulus of elasticity of from 50 to 700 N/mm.sup.2 and a DIN No. 53,157 pendulum hardness of from 20 to 110 s, the corresponding values of the modulus and hardness at room temperature being more than 3.5 times higher.

    摘要翻译： 一种用于制造磁记录介质的方法，包括非磁性基底，并施加于其上，由可分散在有机粘合剂中的各向异性磁性材料组成的一个或多个可磁化层，其中所述粘合剂含有至少40％的 水性离聚物聚氨酯分散体，其在50℃下形成弹性模量为50-700N / mm2的薄膜和DIN编号53,157摆锤硬度为20至110秒，相应的室温模量和硬度值 温度高出3.5倍以上。

    Process for the preparation of polymerizable polyurethane elastomers
    4.
    发明授权
    Process for the preparation of polymerizable polyurethane elastomers 失效
    制备可聚合聚氨酯弹性体的方法

    公开(公告)号：US4334034A

    公开(公告)日：1982-06-08

    申请号：US231836

    申请日：1981-02-05

    申请人： August Lehner ,  Heinrich Hartmann ,  Guenter Heil ,  Werner Lenz ,  Ingolf Buethe ,  Rudolf Bachmann

    发明人： August Lehner ,  Heinrich Hartmann ,  Guenter Heil ,  Werner Lenz ,  Ingolf Buethe ,  Rudolf Bachmann

    IPC分类号： C08G18/00 ,  C08G18/67 ,  C08G63/76 ,  C08G18/62

    CPC分类号： C08G18/6705 ,  C08G18/675

    摘要： A process for the preparation of polymerizable, primarily linear thermoplastic polyurethane elastomers with acrylate side groups comprising reacting an organic polyisocyanate with a mixture of(a) an acrylate diol having a molecular weight of 146 to 3000,(b) an organic polyhydroxyl compound other than those of paragraph (a) having a molecular weight between 400 and 5000, and(c) a chain extender selected from the group consisting of diols, diamines, aminoalcohols, and triols, having molecular weights between 61 and 400, water, and mixtures thereofwherein the ratio of isocyanate to active hydrogen containing groups is from 0.8:1 to 1.2:1 and wherein 1.4 to 1.8 moles of organic polyisocyante, 0 to 15 moles of component (c) and 0.3 to 6 moles of component (a) are used per mole of component (b). The polymerizable polyurethane elastomers may be used for the manufacture of molded parts, laminates, adhesives, coatings, magnetic tapes, and other articles.

    摘要翻译： 一种制备具有丙烯酸酯侧基的可聚合的主要线性的热塑性聚氨酯弹性体的方法，包括使有机多异氰酸酯与（a）分子量为146至3000的丙烯酸酯二醇和（b）有机多羟基化合物的混合物 段落（a）分子量在400和5000之间的那些，和（c）分子量在61和400之间的选自二醇，二胺，氨基醇和三醇的增链剂，水及其混合物 其中异氰酸酯与含活性氢的基团的比例为0.8:1至1.2:1，并且其中使用1.4至1.8摩尔有机聚异氰酸酯，0至15摩尔的组分（c）和0.3至6摩尔的组分（a） 每摩尔组分（b）。 可聚合的聚氨酯弹性体可用于制造模制件，层压材料，粘合剂，涂料，磁带和其它制品。

    Process for coating electrically conductive objects with polyurethane
    9.
    发明授权
    Process for coating electrically conductive objects with polyurethane 失效
    用聚氨酯涂覆导电物体的方法

    公开(公告)号：US4357221A

    公开(公告)日：1982-11-02

    申请号：US231719

    申请日：1981-02-05

    申请人： August Lehner ,  Juergen Gimpel ,  Ingolf Buethe ,  Heinrich Hartmann ,  Hans-Uwe Schenck

    发明人： August Lehner ,  Juergen Gimpel ,  Ingolf Buethe ,  Heinrich Hartmann ,  Hans-Uwe Schenck

    IPC分类号： C08G18/67 ,  C08G18/83 ,  C09D5/44 ,  C08G69/46

    CPC分类号： C09D5/4465 ,  C08G18/6705 ,  C08G18/675 ,  C08G18/835

    摘要： A process for coating electrically conductive objects comprisingA. immersing said object as the anode of an electric current in an aqueous polyurethane dispersion prepared by(1) forming a polyurethane solution by reacting an organic polyisocyanate in the presence of an organic solvent with(a) an acrylic ester diol having a molecular weight of between 146 and 3,000;(b) an organic polyhydroxyl compound other than (a) having a molecular weight between 400 and 5,000 selected from the group consisting of polyester, polyols, polyether polyols, polycarbonates, polylactones, and mixtures thereof; and(c) a chain extender selected from the group consisting of diols, triols, diamines, aminoalcohols, having a molecular weight between 62 and 400, water, and mixtures thereof;(2) forming an anionic polyurethane addition product by reacting said polyurethane solution with a mercaptocarboxylic acid salt in the presence of a solvent;(3) adding water; and(4) removing the organic solvent, andB. passing an electric current between the anode and a cathode which is also dispersed in said dispersion, andC. irradiating said object with ultraviolet radiation or electron rays.The process can be used for coating metals such as iron, steel and aluminum.

    摘要翻译： 一种用于涂覆导电物体的方法，包括将所述物体作为电流的阳极浸入到通过（1）在有机溶剂存在下使有机多异氰酸酯与（a）的有机溶剂反应形成聚氨酯溶液而制备的水性聚氨酯分散体， 分子量为146〜3000的丙烯酸酯二醇; （b）除了（a）分子量在400-5000之外的选自聚酯，多元醇，聚醚多元醇，聚碳酸酯，聚内酯及其混合物的有机多羟基化合物; 和（c）选自二醇，三醇，二胺，氨基醇，分子量在62和400之间的增链剂，水及其混合物; （2）通过在溶剂存在下使所述聚氨酯溶液与巯基羧酸盐反应形成阴离子聚氨酯加成产物; （3）加水; 和（4）去除有机溶剂，以及B.在阳极和也分散在所述分散体中的阴极之间通过电流，以及用紫外线或电子射线照射所述物体。 该方法可用于涂覆金属如铁，钢和铝。

    Process for the preparation of aqueous polyurethane dispersions
    10.
    发明授权
    Process for the preparation of aqueous polyurethane dispersions 失效
    水性聚氨酯分散液的制备方法

    公开(公告)号：US4314922A

    公开(公告)日：1982-02-09

    申请号：US231720

    申请日：1981-02-05

    申请人： August Lehner ,  Alexander Kud ,  Heinrich Hartmann

    发明人： August Lehner ,  Alexander Kud ,  Heinrich Hartmann

    IPC分类号： C08G18/00 ,  C08G18/67 ,  C08G18/83 ,  C08J3/07 ,  C08L75/12

    CPC分类号： C08J3/07 ,  C08G18/6705 ,  C08G18/675 ,  C08G18/835 ,  C08J2375/04

    摘要： A process for preparing aqueous polyurethane dispersions has been discovered which comprises(a) forming a polyurethane solution by reacting an organic polyisocyanate in the presence of a solvent with(i) an acrylic ester diol having a molecular weight of between 146 and 3,000;(ii) an organic polyhydroxyl compound other than (i) having a molecular weight between 400 and 5,000 selected from the group consisting of polyester polyols, polyether polyols, polycarbonates, polylactones, and mixtures thereof; and(iii) a chain extender having a molecular weight between 62 and 400 selected from the group consisting of diols, triols, diamines, aminoalcohols, and mixtures thereof;(b) forming an anionic polyurethane addition product by reacting said polyurethane solution with a mercaptocarboxylic acid salt in the presence of a solvent;(c) adding water; and(d) removing the solvent.The dispersions can be used in a variety of applications. For instance, they can be used to prepare films, coating, and binders.

    摘要翻译： 已经发现了一种制备水性聚氨酯分散体的方法，其包括（a）通过有机多异氰酸酯在溶剂存在下与（i）分子量为146至3,000的丙烯酸酯二醇反应形成聚氨酯溶液; （ii）除（i）分子量为400-5000之外的有机多羟基化合物，其选自聚酯多元醇，聚醚多元醇，聚碳酸酯，聚内酯及其混合物; 和（iii）分子量在62和400之间的扩链剂，其选自二醇，三醇，二胺，氨基醇及其混合物; （b）通过在溶剂存在下使所述聚氨酯溶液与巯基羧酸盐反应形成阴离子聚氨酯加成产物; （c）加水; 和（d）除去溶剂。 分散体可用于各种应用。 例如，它们可用于制备膜，涂层和粘合剂。