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公开(公告)号：US06653432B2
公开(公告)日：2003-11-25
申请号：US10168020
申请日：2002-06-18
IPC分类号： C08G1822
CPC分类号： C08G18/092 , C08G18/022 , C08G18/222
摘要： The invention concerns a (cyclo)trimerisation method for isocyanates having at least two isocyanate functions, characterised in that it comprises: a) reacting initial isocyanate monomers having at least two isocyanate functions, optionally in the presence of other monomers reactive with the isocyanate monomers having at least two isocyanate functions at a temperature of at least 20° C., advantageously at least 50° C., and lower than 200° C., advantageously lower than 150° C., in the presence of a compound comprising at least one rare earth alcoholate function; b) stopping the reaction by inactivating the catalyst or its derivative forms in the reaction medium at a transformation rate of at least 2.5% and at most 90% of the initial isocyanate functions; and optionally c) distilling the reaction medium to eliminate the unreacted monomers.
摘要翻译： 本发明涉及具有至少两种异氰酸酯官能团的异氰酸酯的（环）三聚方法，其特征在于其包括：a）使具有至少两个异氰酸酯官能团的初始异氰酸酯单体反应，任选地在与具有 至少两个异氰酸酯官能团在至少20℃，有利地至少50℃，低于200℃，有利地低于150℃的温度下，在包含至少一种 稀土醇酸盐功能; b）通过使反应介质中的催化剂或其衍生物形式以初始异氰酸酯官能团的至少2.5％和至多90％的转化速率失活来停止反应; 并且任选地c）蒸馏反应介质以除去未反应的单体。
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2.发明授权Method for obtaining slightly colored branched polyisocyanate(s), and the resulting composition 有权获得稍微着色的支化多异氰酸酯的方法，以及所得组合物公开(公告)号：US06642382B2
公开(公告)日：2003-11-04
申请号：US10181495
申请日：2002-11-12
IPC分类号： C07D25134
CPC分类号： C07D251/34
摘要： The invention concerns a method for cyclotrimerization of isocyanate functions by action of a catalyst based on quaternary ammonium or phosphonium. The invention is characterised in that said isocyanate functions are branched and said onium ions are selected among those whereof the total amount of carbons is not more than 30 and not less than 12; and whereof the counterion is selected among the anions corresponding to weak acids whereof the pKA is not less than 8, preferably not less than 10, more preferably not less than 12, whereof the substituents are aliphatic compounds and do not have an unsaturation in beta; and said onium ions comprise at least 2 radicals of more than 6, advantageously more than 10, preferably more than 12 carbon atoms.
摘要翻译： 本发明涉及通过基于季铵或鏻的催化剂的作用使异氰酸酯官能团进行环三聚反应的方法。 本发明的特征在于所述异氰酸酯官能团是支链的，并且所述鎓离子选自碳总量不大于30且不小于12的鎓离子; 并且其中的抗衡离子选自对应于弱酸的阴离子，其中pKA不小于8，优选不小于10，更优选不小于12，其中取代基是脂族化合物，并且不具有β的不饱和度; 并且所述鎓离子包含至少2个大于6个，有利地大于10个，优选大于12个碳原子的基团。
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公开(公告)号：US06635781B1
公开(公告)日：2003-10-21
申请号：US09937761
申请日：2002-06-07
IPC分类号： C07C25500
CPC分类号： C07C253/30 , C07C255/24
摘要： A process is provided for the hemihydrogenation of dinitriles to corresponding aminonitriles using hydrogen in the presence of a supported catalyst. The supported catalyst comprises ruthenium supported on a carbon black, called acetylene black, resulting from the pyrolysis of paraffin oils.
摘要翻译： 提供了在负载型催化剂存在下，使用氢将二腈与相应的氨基腈半氢化的方法。 载体催化剂包含负载在炭黑上的钌，称为乙炔黑，由石蜡油的热解产生。
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4.发明授权Peroxidised polyorganosiloxanes (POS), one of the methods for preparing them and their uses as bleaching agent in dental compositions 失效过氧化聚有机硅氧烷（POS），其制备方法之一及其作为牙科用组合物中漂白剂的用途公开(公告)号：US06841645B1
公开(公告)日：2005-01-11
申请号：US09857578
申请日：1999-12-01
CPC分类号： C11D3/3742 , C11D3/373 , C11D3/3788 , C11D3/3945
摘要： The invention concerns polyorganosiloxanes (POS) grafted with peroxide functions and functions stabilizing the latter. Said stabilized peroxidised POS are designed to form a novel oxidizing system useful as bleaching agents, for example or dental or detergent compositions. The invention aims at and succeeds in providing peroxygenated bleaching agents more stable and more efficient than those known in prior art. The inventive stabilized and peroxidised POS correspond for example to the formula (a). The invention also concerns a method for making said peroxidised POS, the precursors thereof and their uses as bleaching agents in dental compositions (toothpaste or detergent compositions).
摘要翻译： 本发明涉及用过氧化物官能团接枝并具有稳定后者功能的聚有机硅氧烷（POS）。 所述稳定的过氧化POS被设计成形成用作漂白剂，例如牙科或洗涤剂组合物的新型氧化系统。 本发明旨在并且成功地提供比现有技术中已知的更加稳定和更有效的过氧化漂白剂。 本发明的稳定和过氧化的POS对应于例如式（a）。 本发明还涉及制备所述过氧化POS，其前体及其用作牙科组合物（牙膏或洗涤剂组合物）中的漂白剂的方法。
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