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22 条记录 (耗时 0.019 秒)

    Process for Preparing Acylphosphanes and Derivatives Thereof
    3.
    发明申请
    Process for Preparing Acylphosphanes and Derivatives Thereof 有权

    公开(公告)号：US20080004464A1

    公开(公告)日：2008-01-03

    申请号：US11667780

    申请日：2005-11-14

    申请人： Peter Murer ,  Jean-Pierre Wolf ,  Stephan Burkhardt ,  Hansjorg Grutzmacher ,  Daniel Stein ,  Kurt Dietliker

    发明人： Peter Murer ,  Jean-Pierre Wolf ,  Stephan Burkhardt ,  Hansjorg Grutzmacher ,  Daniel Stein ,  Kurt Dietliker

    IPC分类号： C07F9/50 ,  C07C69/66

    CPC分类号： G03F7/029 ,  C07F9/5036 ,  C07F9/5337 ,  C07F9/5537 ,  C07F9/65515 ,  C07F9/6552

    摘要： The invention relates to a process for the preparation of (bis)acylphosphanes of formula I, wherein n and m are each independently of the other 1 or 2; R1 if n=1, is e.g. unsubstituted or substituted C1-C18alkyl or C2-C18alkenyl, or phenyl, R1 if n=2, is e.g. a divalent radical of the monovalent radical defined above; R2 is e.g. C1-C18alkyl, C3-C12cycloalkyl, C2-C18alkenyl, mesityl, phenyl, naphthyl; R3 is one of the radicals defined under R1; the process comprises the steps a) contacting e.g. elemental phosphorous [P]∞, P(Hal)3 with a reducing metal optionally in the presence of a catalyst or an activator in a solvent to obtain metal phosphides Me3P or Me′3P2, wherein Me is an alkali metal and Me′ is an earth alkali metal or to obtain metal polyphosphides b) optionally adding a proton source, optionally in the presence of a catalyst or an activator to obtain metal dihydrogen phosphides MePH2; c) subsequent acylation reaction with m acid halides of formula III or m carboxylic acid esters of formula IV or, in case that in formula I m=1, with one carboxylic ester of formula IV followed by one acid halide of formula III or vice versa, wherein R is the residue of an alcohol and R2 is as defined above; d) alkylation reaction subsequent reaction with an electrophilic agent R1Hal or other electrophilic agents to obtain the compounds of formula I. An oxidation step may follow to obtain mono- and bisacylphosphane oxides or mono- and bisacylphosphane sulfides, which are used as photoinitiators.

    CHARGED PARTICLES
    10.
    发明申请
    CHARGED PARTICLES 有权
    充电颗粒

    公开(公告)号：US20120229884A1

    公开(公告)日：2012-09-13

    申请号：US13376874

    申请日：2010-06-11

    申请人： Pascal Hayoz ,  Bernd Lamatsch ,  Achim Lamatsch (Sole Heir) ,  Margherita Fontana ,  Stephan Burkhardt ,  Laurent Michau ,  Urs Lehmann ,  Philippe Bugnon

    发明人： Pascal Hayoz ,  Bernd Lamatsch ,  Achim Lamatsch (Sole Heir) ,  Margherita Fontana ,  Stephan Burkhardt ,  Laurent Michau ,  Urs Lehmann ,  Philippe Bugnon

    IPC分类号： G02F1/167 ,  C07F7/10 ,  C07F9/54 ,  G02B1/04 ,  C09D11/00 ,  B82Y30/00

    CPC分类号： C09B69/008 ,  C09B69/04 ,  G02F1/167 ,  G02F2001/1678

    摘要： Disclosed is a composition comprising a charged particle of volume 5 nm3 to 50 million nm3 preferably having an inorganic core of SiO2, AI2O3, and/or TiO2, or a core essentially consisting of an organic pigment and/or pigment derivative, and a counter ion which is separable from the particle and is not covalently linked to the particle, said counter ion comprising a silicon atom which is directly bound to a carbon atom. Preferably, said charged particle comprises a dye attached to said inorganic core and said counter ion comprises a (poly)siloxane moiety linked via suitable bridge members to a quaternary, positively charged, nitrogen or phosphorus atom, or to a moiety carrying an anionic functional group. Said composition may be used e.g. in the form of a homogenous dispersion in an electrophoretic display.

    摘要翻译： 公开了一种组合物，其包含体积为5nm至5000nm的带电粒子，优选具有SiO 2，Al 2 O 3和/或TiO 2的无机核心或基本上由有机颜料和/或颜料衍生物组成的核心，以及抗衡离子 其与颗粒分离并且不与颗粒共价连接，所述反离子包含直接与碳原子结合的硅原子。 优选地，所述带电粒子包括连接到所述无机核的染料，并且所述抗衡离子包含通过合适的桥连构件连接到季，带正电荷，氮或磷原子上的（多）硅氧烷部分，或含有阴离子官能团的部分 。 所述组合物可以例如使用。 以电泳显示器中的均匀色散的形式。