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    Magnetic recording media
    1.
    发明授权
    Magnetic recording media 失效
    磁记录媒体

    公开(公告)号：US5968658A

    公开(公告)日：1999-10-19

    申请号：US982436

    申请日：1997-12-02

    申请人： Ria Kress ,  Albert Kohl ,  August Lehner ,  Werner Lenz ,  Michael Hitzfeld

    发明人： Ria Kress ,  Albert Kohl ,  August Lehner ,  Werner Lenz ,  Michael Hitzfeld

    IPC分类号： C09D5/23 ,  G11B5/702

    CPC分类号： G11B5/7021 ,  Y10S428/90 ,  Y10T428/31609

    摘要： Magnetic recording media contain a nonmagnetic substrate and a magnetizable layer, the magnetizable layer containing ferromagnetic pigments and a system of polymeric materials, wherein the system of polymeric materials containsa) from 3 to 35% by weight of a polymer containing ionic or ionogenic groupsb) from 5 to 97% by weight of a polymer XIV which contains basic groups, and has a molecular weight of from 30000 to 2000000.

    摘要翻译： 磁记录介质包含非磁性基底和可磁化层，可磁化层含有铁磁性颜料和聚合物材料体系，其中聚合材料体系包含a）3至35重量％的含有离子或离子型基团的聚合物b ）5〜97重量％的含有碱性基团的聚合物XIV，分子量为30000〜2000000。

    Polymeric materials suitable as dispersing resins
    3.
    发明授权
    Polymeric materials suitable as dispersing resins 失效
    适合作为分散树脂的聚合材料

    公开(公告)号：US5756637A

    公开(公告)日：1998-05-26

    申请号：US643587

    申请日：1996-05-06

    申请人： Gregor Brodt ,  Josef Schelble ,  August Lehner ,  Franz Weingart ,  Albert Kohl ,  Ria Kress ,  Norbert Schneider

    发明人： Gregor Brodt ,  Josef Schelble ,  August Lehner ,  Franz Weingart ,  Albert Kohl ,  Ria Kress ,  Norbert Schneider

    IPC分类号： C08L75/04 ,  C08G18/10 ,  C08G18/62 ,  C08G18/65 ,  C08G18/83 ,  C08L75/00 ,  C08L101/00 ,  C08L101/12 ,  C09D5/23 ,  G11B5/702 ,  G11B5/73

    CPC分类号： G11B5/7021 ,  C08G18/10 ,  C08G18/6245 ,  C08G18/831 ,  Y10S428/90

    摘要： A polymeric material I is obtainable by reacting 1) a polymer II of a) from 80 to almost 100 mol % of a C.sub.1 -C.sub.25 -alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid, b) from 0 to 20 mol % of one or more further monomers and c) an initiator and/or regulator by means of which the majority of the polymer chains of the polymer II are terminated at one of their ends by a hydroxyl group, 2) with a polyfunctional nonaromatic isocyanate III to give a reaction product IV, the amount of isocyanate groups being from 1.2 to 3.9 mol per mole of the hydroxyl groups in II, 3) reacting IV with a) a compound V, containing groups reactive toward isocyanates, to give a reaction product VI, the amount of reactive groups being from 2 to 7 mol per mole of the free isocyanate groups still present in IV, and reacting VI with a compound VII to give the polymer I, which reacts with the reactive groups which are still free in VI and by means of which acidic groups are introduced into VI, or b) a compound VIII which contains groups reactive toward isocyanates and by means of which the acidic groups are introduced into IV, to give the polymer I. The polymeric materials can be used as dispersing resin for pigment-containing coatings, in particular for the production of magnetic recording materials.

    摘要翻译： 聚合物材料I可通过以下步骤获得：a）a）80至几乎100摩尔％的α，β-不饱和羧酸的C 1 -C 25烷基酯的聚合物II，b）0至20摩尔％ 一个或多个另外的单体和c）引发剂和/或调节剂，聚合物II的大部分聚合物链通过羟基在其一端终止，2）与多官能非芳族异氰酸酯III一起给出 反应产物IV，II中每摩尔羟基的异氰酸酯基团的量为1.2至3.9摩尔，3）使IV与a）包含对异氰酸酯反应的基团的化合物V反应，得到反应产物VI， 反应基团的量相对于IV中仍然存在的每摩尔游离异氰酸酯基团为2至7摩尔，并且使VI与化合物VII反应，得到聚合物I，其与VI中仍具有自由基的反应性基团反应， 其中酸性基团被引入VI​​中，或b）化合物V III，其含有对异氰酸酯具有反应性的基团，并且通过其将酸性基团引入到IV中，得到聚合物I.聚合物材料可用作含颜料的涂料的分散树脂，特别是用于制备磁性记录材料 。

    Materials suitable as crosslinkable binder components
    5.
    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

    申请人： Thomas Wunsch ,  Gregor Brodt ,  Ria Kress ,  Norbert Schneider ,  Albert Kohl ,  August Lehner ,  Werner Balz

    发明人： Thomas Wunsch ,  Gregor Brodt ,  Ria Kress ,  Norbert Schneider ,  Albert Kohl ,  August Lehner ,  Werner Balz

    IPC分类号： C08G18/12 ,  C08G18/61 ,  C08G18/65 ,  C08G18/66 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  B32B27/40

    CPC分类号： G11B5/7021 ,  C08G18/12 ,  C08G18/61 ,  C08G18/6517 ,  C08G18/6535 ,  C08G18/6637 ,  Y10S428/90 ,  Y10T428/31609

    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。