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62 条记录 (耗时 0.028 秒)

    Catalysts for reaction between an isocyanate and an alcohol
    1.
    发明授权
    Catalysts for reaction between an isocyanate and an alcohol 有权
    异氰酸酯与醇反应的催化剂

    公开(公告)号：US09102780B2

    公开(公告)日：2015-08-11

    申请号：US13123981

    申请日：2009-10-12

    申请人： Christian Maliverney ,  Laurent Saint-Jalmes

    发明人： Christian Maliverney ,  Laurent Saint-Jalmes

    IPC分类号： C08G18/18 ,  C08G18/30 ,  C08G18/42 ,  C07C269/02 ,  C08J9/08 ,  C08G18/08 ,  C08G18/28 ,  C08G18/48

    CPC分类号： C08G18/1816 ,  C07C269/02 ,  C08G18/14 ,  C08G18/1808 ,  C08G18/1858 ,  C08G18/2815 ,  C08G18/42 ,  C08G18/4825 ,  C08J9/08

    摘要： Processes are described for preparing polyurethane polymers by reacting an isocyanate with an alcohol using a non-tin based catalyst having the formula where R1, which are identical or different, are a fluoroalkyl, monovalent alkyl, cycloalkyl, (cycloalkyl)alkyl, or the ring of the cycloalkyl group that optionally comprises at least one heteroatom, R2 represents a hydrogen atom, an aromatic, arylalkyl, fluoroalkyl, alkylamine, alkylguanidine, monovalent alkyl, cycloalkyl or an alkyl group substituted by an optionally substituted ring, which optionally comprises at least one heteroatom, and R3 represents an arylalkyl, fluoroalkyl, alkylamine, alkylguanidine, monovalent alkyl, cylcoalkyl, or alkyl group substituted by an optionally substituted ring which optionally comprises at least one heteroatom, when the R2 radical is not a hydrogen atom, the R2 and R3 radicals optionally being linked to form a 3 to 7 membered optionally substituted aliphatic ring, and the R1, R2 and R3 radicals do not comprise a silicon atom.

    摘要翻译： 描述了通过使用具有下式的非锡基催化剂使异氰酸酯与醇反应制备聚氨酯聚合物的方法，其中相同或不同的R 1是氟烷基，一价烷基，环烷基，（环烷基）烷基或环 任选地包含至少一个杂原子的环烷基，R 2表示氢原子，芳族，芳基烷基，氟烷基，烷基胺，烷基胍，一价烷基，环烷基或被任选取代的环取代的烷基，其任选地包含至少一个 并且R 3表示芳基烷基，氟代烷基，烷基胺，烷基胍，一价烷基，环烷基或任意取代的环取代的烷基，其任选地包含至少一个杂原子，当R 2基团不是氢原子时，R 2和R 3 可任意连接的基团形成3至7元任选取代的脂族环，并且R 1，R 2和R 3基团为n 其包含硅原子。

    Process for the preparation of isovanillin
    7.
    发明授权
    Process for the preparation of isovanillin 失效
    异喹啉腈的制备方法

    公开(公告)号：US5648552A

    公开(公告)日：1997-07-15

    申请号：US546648

    申请日：1995-10-23

    申请人： Christian Maliverney

    发明人： Christian Maliverney

    IPC分类号： C07C45/64 ,  C07C45/67 ,  C07C45/71 ,  C07C47/575 ,  C07C45/65

    CPC分类号： C07C45/673 ,  C07C45/71

    摘要： The present invention relates to a novel process for the preparation of isovanillin.The process for the preparation of isovanillin according to the invention is characterized in that it consists in dealkylation being carried out using a strong acid, selectively in the 3-position, on a 3-alkoxy-4-methoxybenzaldehyde wherein said alkoxy group has at least two carbon atoms.

    摘要翻译： 本发明涉及一种制备异万古霉素的新方法。 根据本发明的异喹啉腈的制备方法的特征在于其中使用强酸在3-烷氧基-4-甲氧基苯甲醛中选择性地使用强酸进行脱烷基化，其中所述烷氧基至少具有 两个碳原子。

    Dehydrocyanation of aliphatic dinitriles
    8.
    发明授权
    Dehydrocyanation of aliphatic dinitriles 失效
    脂肪族二腈的脱氢氰化

    公开(公告)号：US5352819A

    公开(公告)日：1994-10-04

    申请号：US63677

    申请日：1993-05-20

    申请人： Michel Gubelmann ,  Christian Maliverney ,  Helene Pernot

    发明人： Michel Gubelmann ,  Christian Maliverney ,  Helene Pernot

    IPC分类号： C07C253/30 ,  C07C293/30

    CPC分类号： C07C253/30

    摘要： Branched saturated dinitrile byproducts, e.g. 2-methylglutaronitrile, 2-ethylsuccinonitrile and mixtures thereof, are converted into useful ethylenic nitriles by dehydrocyanating same, in vapor phase, in the presence of an at least partially acidified cation exchange substrate, notably a molecular sieve, clay, acid oxide or lamellar phosphate.

    摘要翻译： 支链饱和二腈副产物，例如 2-甲基戊二腈，2-乙基琥珀腈及其混合物通过在气相中，在至少部分酸化的阳离子交换基质，特别是分子筛，粘土，酸性氧化物或层状磷酸盐存在下，通过其脱氢氰化而转化为有用的烯属腈 。