Materials suitable as crosslinkable binder components
    8.
    发明授权
    Materials suitable as crosslinkable binder components 失效
    适合作为可交联粘合剂组分的材料

    公开(公告)号:US5922469A

    公开(公告)日:1999-07-13

    申请号:US839703

    申请日:1997-04-15

    摘要: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting1) a polyurethane (II) comprisinga) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000,b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms,c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms,d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms,e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group andf) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.4:1with2) a compound (IX) which contains one or more hydroxyl groups and one or more amino groups reactive toward isocyanate groups, the amount of (IX) being such that the number of reactive amino groups corresponds to the number of isocyanate groups in the polyurethane (II).The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.

    摘要翻译: 制备平均分子量为4000〜30,000的材料(I),其可通过使1)包含a)1摩尔平均分子量为400至4000的二醇(III)的聚氨酯(II)得到,b) 2〜18个碳原子的脂肪族或脂环族二醇(Ⅳ)为0.3〜9摩尔,c)0.3〜9摩尔碳原子数为8〜30的芳香族二醇(Ⅴ),d)0.01〜1摩尔 3〜18个碳原子的三元醇(Ⅵ),e)0.001〜1摩尔含有叔氨基的3〜14个碳原子的多元醇(Ⅶ),f)二异氰酸酯(Ⅷ) (III)至(VII)中的异氰酸酯基团与羟基的总摩尔比为1.05:1至1.4:1,其中2)含有一个或多个的化合物(IX) 或更多的羟基和一个或多个对异氰酸酯基反应的氨基,(IX)的量使得反应性氨基的数量对应于数目o 聚氨酯(II)中的异氰酸酯基团。 这些材料可以用作含颜料的涂料的可交联粘合剂组分,特别是用于生产磁记录材料。

    Magnetic recording media
    10.
    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

    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。