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    Manufacture of cobalt-modified .gamma.-iron(III)oxides
    1.
    发明授权
    Manufacture of cobalt-modified .gamma.-iron(III)oxides 失效
    钴改性的{65-铁（III）氧化物的制造

    公开(公告)号：US4064292A

    公开(公告)日：1977-12-20

    申请号：US656800

    申请日：1976-02-10

    申请人： Eduard Schoenafinger ,  Matthias Schwarzmann ,  Eberhard Koester

    发明人： Eduard Schoenafinger ,  Matthias Schwarzmann ,  Eberhard Koester

    IPC分类号： G11B5/706 ,  H01F10/02

    CPC分类号： G11B5/70689 ,  G11B5/70673

    摘要： The invention relates to the manufacture of acicular cobalt-modified .gamma.-iron(III) oxide by coating an acicular .alpha.-iron(III) oxide or its hydrate with an inorganic protective coating, subsequent reduction to magnetite at 350.degree. to 650.degree. C, application of the cobalt compound to this magnetite or to the .gamma.-iron(III) oxide obtained therefrom by oxidation, and subsequent heat treatment at 80.degree. to 300.degree. C, if necessary with simultaneous oxidation of the magnetite to the corresponding .gamma.-iron(III) oxide. This iron oxide has high coercivity and can be used as the magnetic component in magnetic recording media for recording high frequencies without having the disadvantage of thermal and mechanical instability.

    摘要翻译： 本发明涉及通过用无机保护涂层涂覆针状α-铁（III）或其水合物，然后在350至650℃下还原成磁铁矿，制造针状钴改性的氧化钇（III） 通过氧化将钴化合物施加到该磁铁矿或由其获得的γ-铁氧合物（III），随后在80℃至300℃下进行热处理，如果需要，将磁铁矿同时氧化成相应的γ-铁（ III）氧化物。 该氧化铁具有高的矫顽力，并且可以用作用于记录高频的磁记录介质中的磁性成分，而不存在热和机械不稳定性的缺点。

    Phenyl-substituted phthalazone azo dyes with a coupling component of the phenol, napthol, acetoacetarylide, pyrazolone, quinolone, pyridine, pyrimidone or isoquinolone series
    4.
    发明授权
    Phenyl-substituted phthalazone azo dyes with a coupling component of the phenol, napthol, acetoacetarylide, pyrazolone, quinolone, pyridine, pyrimidone or isoquinolone series 失效
    苯酚取代酞嗪偶氮染料与苯酚，萘酚，乙酰乙酰芳胺，吡唑啉酮，喹诺酮，吡啶，嘧啶酮或异喹诺酮系列的偶合成分

    公开(公告)号：US4016151A

    公开(公告)日：1977-04-05

    申请号：US572420

    申请日：1975-04-28

    申请人： Wolfgang Lotsch

    发明人： Wolfgang Lotsch

    IPC分类号： C08K5/00 ,  C08K5/22 ,  C08L1/00 ,  C08L27/00 ,  C08L67/00 ,  C09B29/00 ,  C09B29/01 ,  C09B29/09 ,  C09B29/10 ,  C09B29/20 ,  C09B29/33 ,  C09D11/00 ,  C09D11/02 ,  C09B29/36 ,  D06P1/52 ,  D06P1/76

    CPC分类号： C09B29/0011 ,  C09B29/0051

    摘要： Azo dyes having a phenyl-substituted phthalazone as the diazo component and a coupling component containing a hydroxy group or an enolizable keto group, said coupling component being selected from the phenol, naphthol, acetoacetarylide, pyrazalone, quinolone, pyridone, pyrimidone or isoquinolone series. The dyes have pigmentary character with good light fastness and also fastness to overcoating, migration and overspraying, and are thus eminently suitable for the coloring of printing inks, surface coatings and plastics, such as polyvinyl chloride or polyester fibers, the pigments being substantially insoluble in solvents and further exhibiting resistance to high temperatures and fastness to weathering.

    摘要翻译： 具有苯基取代的酞嗪酮作为重氮组分的偶氮染料和含有羟基或可烯化酮基的偶联组分，所述偶合组分选自苯酚，萘酚，乙酰乙酰芳胺，吡唑啉酮，喹诺酮，吡啶酮，嘧啶酮或异喹诺酮系列。 这些染料具有色牢度好，耐光牢度好，耐外涂性，迁移性和喷涂性，因此特别适用于印刷油墨，表面涂料和塑料如聚氯乙烯或聚酯纤维的着色，颜料基本上不溶于 溶剂，并进一步显示耐高温性和耐候性。