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。

    Process of making a magnetic recording media
    9.
    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

    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。