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16 条记录 (耗时 0.023 秒)

    Magnetic recording media
    3.
    发明授权
    Magnetic recording media 失效
    磁记录媒体

    公开(公告)号：US4666781A

    公开(公告)日：1987-05-19

    申请号：US759298

    申请日：1985-07-26

    申请人： August Lehner ,  Guenter Heil ,  Jenoe Kovacs ,  Werner Balz ,  Werner Lenz

    发明人： August Lehner ,  Guenter Heil ,  Jenoe Kovacs ,  Werner Balz ,  Werner Lenz

    IPC分类号： C09D5/23 ,  C09D175/04 ,  C09D175/14 ,  G11B5/702

    CPC分类号： G11B5/702 ,  Y10S428/90 ,  Y10T428/31609

    摘要： Magnetic recording media comprising a non-magnetic substrate and a magnetic layer comprising a finely divided magnetic material dispersed in an organic solvent soluble, crosslinkable, essentially linear, thermoplastic polyurethane which possesses acrylate side and terminal groups wherein said polyurethane is prepared by reacting poly- and/or diisocyanates with a mixture of (a) methacrylate - or acrylate - diols having molecular weights of from 146 to 3,000, (b) monoesters of methacrylic or acrylic acid and a diol having a molecular weight of from 116 to 300, and (c) other organic polydiol compounds which have molecular weights of from 400 to 5,000.

    摘要翻译： 包含非磁性基底和磁性层的磁性记录介质包括分散在有机溶剂可溶性，可交联的，基本上线性的热塑性聚氨酯中的细碎磁性材料，其具有丙烯酸酯侧和端基，其中所述聚氨酯通过聚 （a）分子量为146〜3000的（a）甲基丙烯酸酯或丙烯酸酯 - 二醇的混合物的二异氰酸酯，（b）甲基丙烯酸或丙烯酸的单酯和分子量为116〜300的二醇和（c ）分子量为400至5,000的其它有机聚二醇化合物。

    Magnetic recording media
    5.
    发明授权
    Magnetic recording media 失效
    磁记录媒体

    公开(公告)号：US4666783A

    公开(公告)日：1987-05-19

    申请号：US734185

    申请日：1985-05-15

    申请人： Guenter Heil ,  Werner Lenz ,  Jenoe Kovacs

    发明人： Guenter Heil ,  Werner Lenz ,  Jenoe Kovacs

    IPC分类号： C08G18/67 ,  C09D5/23 ,  C09D175/04 ,  C09D175/14 ,  G11B5/702

    CPC分类号： G11B5/7026 ,  C08G18/672 ,  G11B5/7022 ,  Y10S428/90 ,  Y10T428/31609

    摘要： Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said binder matrix being obtained by electron beam curing of a mixture of from 60 to 100% by weight of a polyurethane acrylate polymer possessing polymerizable acrylate double bonds and from 0 to 40% by weight of an acrylate monomer and/or an acrylate prepolymer and/or an N-vinyl monomer.

    摘要翻译： 磁记录介质包括非磁性基体和一个或多个由含有细碎磁性材料的有机粘合剂基质组成的磁性层，所述粘合剂基质通过电子束固化获得，该混合物为60至100重量％ 具有可聚合丙烯酸酯双键的聚氨酯丙烯酸酯聚合物和0至40重量％的丙烯酸酯单体和/或丙烯酸酯预聚物和/或N-乙烯基单体。

    Process for the preparation of polymerizable polyurethane elastomers
    10.
    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。