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    Method for removing horn substance from skins, pelts or furs
    6.
    发明授权
    Method for removing horn substance from skins, pelts or furs 失效
    从皮肤，皮毛或毛皮去除角质物质的方法

    公开(公告)号：US07404826B2

    公开(公告)日：2008-07-29

    申请号：US10513800

    申请日：2003-05-19

    申请人： Tilman Luedecke Taeger ,  Gunther Pabst ,  Philippe Lamalle ,  Stephan Hueffer ,  Stefan Schroeder

    发明人： Tilman Luedecke Taeger ,  Gunther Pabst ,  Philippe Lamalle ,  Stephan Hueffer ,  Stefan Schroeder

    IPC分类号： C14C1/00

    CPC分类号： C14C1/06

    摘要： Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts, the variables being defined as follows: R1 is selected from hydrogen and C1-C12-alkyl, unsubstituted or substituted by one or more S—H or O—H groups; X1 to X4 are identical or different and are selected from hydrogen, C1-C4-alkyl, O—H, S—H and N—HR2, R2 is hydrogen or C1-C12-alkyl or a C1-C4-Alkyl-C═O group, at least one radical X1 to X4 being S—H when R1 contains at least one sulfur atom and at least two radicals X1 to X4 being S—H when R1 contains no sulfur atom.

    摘要翻译： 通过用一种或多种式I化合物或其相应的碱金属或碱土金属盐或铵盐或鏻盐处理含水液体中的皮革，皮毛或皮肤，从死皮的皮革，毛皮或皮肤中去除角质物质， 变量定义如下：R 1选自氢和C 1 -C 12 - 烷基，未被取代或被一个或多个SH取代 或OH基团; X 1至X 4相同或不同，并且选自氢，C 1 -C 4 - C 4 - 烷基 ，OH，SH和N-HR 2，R 2是氢或C 1 -C 12 - C 12 - 烷基 或C 1 -C 4 - 烷基-CO基团，至少一个X 1至X 4 - 基团， 当R 1含有至少一个硫原子时为SH，当R 1为至少两个X X 1至X 4时，SH 4为SH 不含硫原子。

    Tanning agent and curing agent based on dialdehydes
    7.
    发明授权
    Tanning agent and curing agent based on dialdehydes 失效
    鞣剂和基于二醛的固化剂

    公开(公告)号：US07354457B2

    公开(公告)日：2008-04-08

    申请号：US10511279

    申请日：2003-05-02

    申请人： Stephan Hueffer ,  Gunther Pabst ,  Tilman Luedecke Taeger ,  Stefan Schroeder ,  Gerhard Wolf

    发明人： Stephan Hueffer ,  Gunther Pabst ,  Tilman Luedecke Taeger ,  Stefan Schroeder ,  Gerhard Wolf

    IPC分类号： C14C3/08

    CPC分类号： C07C45/72 ,  C14C3/16

    摘要： Tanning agents can be prepared by reacting at least one aldehyde of formula I, with at least one further identical or different aldehyde of formula I, where Z is a single chemical bond, unsubstituted or substituted C1-C12-alkylene, unsubstituted or substituted C5-C12-cycloalkylene or unsubstituted or substituted C6-C14-arylene, the reaction being carried out in the presence of an acidic catalyst and in the presence of at least one further carbonyl compound of formula II where R1 to R4, independently of one another, are hydrogen, unsubstituted or substituted C1-C12-alkyl, unsubstituted or substituted C3-C12-cycloalkyl, unsubstituted or substituted C7-C13-aralkyl or unsubstituted or substituted C6-C14-aryl, with the proviso that, where Z is a single chemical bond or a radical without a-hydrogen atoms, at least one further aldehyde of the formula I, in which Z contains α-hydrogen atoms, or at least one further carbonyl compound of formula II is present.

    摘要翻译： 鞣制剂可以通过使至少一种式I的醛与至少一种其它相同或不同的式I的醛反应来制备，其中Z是单个化学键，未取代或取代的C 1 -C 未取代或取代的C 1 -C 12 - 亚烷基，未取代或取代的C 5 -C 12 - 亚环烷基或未取代或取代的C 6 -C 该反应在酸性催化剂的存在下进行，并且在至少一种另外的式II的羰基化合物的存在下进行，其中R 1至R 4 - 彼此独立地为氢，未取代或取代的C 1 -C 12 - 烷基，未取代或取代的C 3 - 未取代或取代的C 7 -C 13 - 芳烷基或未取代或取代的C 6 - 其中Z是单一化学键或没有氢原子的基团，至少一个 存在式I的另外的醛，其中Z包含α-氢原子，或至少一种另外的式II的羰基化合物。