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    Process for hydrogenating aromatic di- and polyamines
    2.
    发明授权
    Process for hydrogenating aromatic di- and polyamines 有权
    氢化芳族二胺和多胺的方法

    公开(公告)号：US09403754B2

    公开(公告)日：2016-08-02

    申请号：US14614013

    申请日：2015-02-04

    Applicant: Bayer MaterialScience AG

    Inventor： Thomas E. Müller ,  Christoph Gürtler ,  Reinhard Halpaap ,  Christoph Thiebes ,  Ewa Gebauer-Henke ,  Isabel U. Castro Cevallos ,  Walter Leitner

    IPC: C07C209/72 ,  B01J23/46

    CPC classification number: C07C209/72 ,  B01J23/464 ,  C07C2601/14 ,  Y02P20/582 ,  C07C211/36

    Abstract: A catalytic process for hydrogenating aromatic di- and polyamines with the aid of a selected catalyst system is provided, which comprises a mixture of a first heterogeneous catalyst and a second heterogeneous catalyst and a nitro compound (nitrate and/or nitrite salt). The first and second heterogeneous catalyst each independently comprise a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and the metal selected for the second heterogeneous catalyst is different from the metal selected for the first heterogeneous catalyst. Hydrogenation of aromatic rings having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.

    Abstract translation: 提供了借助于选择的催化剂体系来氢化芳族二胺和多胺的催化方法，其包括第一非均相催化剂和第二非均相催化剂和硝基化合物（硝酸盐和/或亚硝酸盐）的混合物。 第一和第二非均相催化剂各自独立地包含选自Cr，Mo，W，Mn，Re，Fe，Ru，Os，Co，Rh，Ir，Ni，Pd和/或Pt中的金属，并且所选择的金属 对于第二种非均相催化剂，不同于为第一种非均相催化剂选择的金属。 具有与芳环结合的两个或多个氨基的芳环的氢化产生脂环族二胺和多胺，它们是有用的化学中间体，例如用于与环氧化物或异氰酸酯的进一步反应。 氨基也可以通过与光气反应转化为异氰酸酯。 所得到的脂环族二异氰酸酯和多异氰酸酯也可以用作制备聚合物的单体。

    PROCESS FOR TRIMERISING CYCLOALIPHATIC DIISOCYANATES
    3.
    发明申请
    PROCESS FOR TRIMERISING CYCLOALIPHATIC DIISOCYANATES 有权
    循环二异氰酸酯的方法

    公开(公告)号：US20140058102A1

    公开(公告)日：2014-02-27

    申请号：US13971018

    申请日：2013-08-20

    Applicant: Bayer MaterialScience AG

    Inventor： Reinhard Halpaap ,  Mario Schneider ,  Oswald Wilmes ,  Uwe Werner

    IPC: C07D251/34

    CPC classification number: C07D251/34 ,  C08G18/022 ,  C08G18/092 ,  C08G18/1875 ,  C08G18/755

    Abstract: The invention relates to a process for preparing polyisocyanates containing isocyanurate groups by trimerising cycloaliphatic diisocyanates using a catalyst solution comprising at least one quaternary ammonium hydroxide, characterized in that the catalyst solution is metered in such that the reaction temperature is >90° C. and ≦140° C.

    Abstract translation: 本发明涉及一种通过使用包含至少一种季铵氢氧化物的催化剂溶液使脂环族二异氰酸酯三聚制备含有异氰脲酸酯基团的多异氰酸酯的方法，其特征在于将催化剂溶液计量，使得反应温度> 90℃， 140℃

    Process for hydrogenating aromatic di- and polyamines to cycloaliphatic di- and polyamines
    5.
    发明授权
    Process for hydrogenating aromatic di- and polyamines to cycloaliphatic di- and polyamines 有权
    将芳族二胺和多胺氢化成脂环族二胺和多胺的方法

    公开(公告)号：US09278906B2

    公开(公告)日：2016-03-08

    申请号：US14614183

    申请日：2015-02-04

    Applicant: Bayer MaterialScience AG

    Inventor： Thomas E. Müller ,  Christoph Gürtler ,  Reinhard Halpaap ,  Ewa Gebauer-Henke ,  Walter Leitner ,  Patrick Tomkins ,  Christoph Thiebes

    IPC: C07C209/72

    CPC classification number: C07C209/72 ,  C07C2601/14 ,  Y02P20/582 ,  C07C211/35

    Abstract: A process for hydrogenating aromatic di- and polyamines is provided comprising the steps of reacting the aromatic amine with hydrogen in the presence of a catalytic system, wherein the catalytic system comprises a heterogeneous catalyst comprising a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and a support, and wherein the catalyst system further comprises an organic nitro compound. Hydrogenation of aromatic di- and polyamines having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.

    Abstract translation: 提供了一种用于氢化芳族二胺和多胺的方法，其包括在催化体系存在下使芳族胺与氢反应的步骤，其中催化体系包含非均相催化剂，其包含选自Cr，Mo， W，Mn，Re，Fe，Ru，Os，Co，Rh，Ir，Ni，Pd和/或Pt和载体，并且其中催化剂体系还包含有机硝基化合物。 具有与芳环结合的两个或多个氨基的芳族二胺和多胺的氢化产生脂环族二胺和多胺，它们是有用的化学中间体，例如用于与环氧化物或异氰酸酯进一步反应。 氨基也可以通过与光气反应转化为异氰酸酯。 所得到的脂环族二异氰酸酯和多异氰酸酯也可以用作制备聚合物的单体。

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