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。

    Production of magnetic recording media
    9.
    发明授权
    Production of magnetic recording media 失效
    生产磁记录介质

    公开(公告)号:US4581246A

    公开(公告)日:1986-04-08

    申请号:US756308

    申请日:1985-07-18

    CPC分类号: G11B5/7013

    摘要: Magnetic recording media are produced by preparing a dispersion consisting of finely divided magnetic material, a dispersant, the conventional additives and a solution or a dispersion of a polymeric binder, applying the dispersion in the form of a layer onto a non-magnetizable base, orienting the anisotropic magnetic material by means of a magnetic field and drying the applied layer, by a process in which the dispersant employed is obtained by reactingA. from 70 to 95 parts by weight of a reaction product ofI. from 0.5 to 1.5 moles of an oxoalcohol of 6 to 20 carbon atoms,II. from 6 to 18 moles of ethylene oxide andIII. from 2 to 10 moles of propylene oxide, withB. from 5 to 30 parts by weight of a polyphosphoric acid having a P.sub.2 O.sub.5 content of from 80 to 88%.

    摘要翻译: 通过制备由细碎的磁性材料,分散剂,常规添加剂和聚合物粘合剂的溶液或分散体组成的分散体制备磁记录介质,将层状分散体施加到不可磁化的基底上,定向 各向异性磁性材料通过磁场并干燥所施加的层,其中所用的分散剂是通过使A.A.反应产物为70〜95重量份,0.5〜1.5摩尔的 6至20个碳原子的二价醇,II。 6至18摩尔环氧乙烷和III。 2〜10摩尔环氧丙烷,B为5〜30重量份,P2O5含量为80〜88%的多磷酸。