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    Process for the continuous preparation of hydroxyalkylamides
    6.
    发明授权
    Process for the continuous preparation of hydroxyalkylamides 有权
    连续制备羟烷基酰胺的方法

    公开(公告)号：US06194613B1

    公开(公告)日：2001-02-27

    申请号：US09312967

    申请日：1999-05-17

    申请人： Thomas Weihrauch ,  Klaus Behrendt ,  Silvia Herda ,  Rainer Elm

    发明人： Thomas Weihrauch ,  Klaus Behrendt ,  Silvia Herda ,  Rainer Elm

    IPC分类号： C07C23102

    CPC分类号： C07C231/02 ,  C07C233/18

    摘要： Process for the continuous preparation of hydroxyalkylamides Process for the continuous preparation of hydroxyalkylamides from carboxylic esters and alkanolamines, wherein the reaction of the starting materials is carried out in an extruder or intensive mixer by intensive mixing and brief reaction with supply of heat and simultaneous removal of the alcohol formed and the final product is then isolated.

    摘要翻译： 用于连续制备羟烷基酰胺的方法从羧酸酯和链烷醇胺连续制备羟烷基酰胺的方法，其中起始原料的反应在挤出机或强力混合器中进行，通过强烈混合和短暂的反应加热和同时除去 形成醇，然后分离最终产物。

    Process for the preparation of polyaddition products containing uretdione groups, and their use in polyurethane coating systems
    7.
    发明授权
    Process for the preparation of polyaddition products containing uretdione groups, and their use in polyurethane coating systems 失效
    制备含脲二酮基团的加聚产物的方法及其在聚氨酯涂料体系中的应用

    公开(公告)号：US06479613B2

    公开(公告)日：2002-11-12

    申请号：US08667278

    申请日：1996-06-20

    申请人： Rainer Gras ,  Siegfried Brandt ,  Klaus Behrendt ,  Silvia Herda

    发明人： Rainer Gras ,  Siegfried Brandt ,  Klaus Behrendt ,  Silvia Herda

    IPC分类号： C08G1879

    CPC分类号： C08G18/798 ,  C07D229/00 ,  C08G18/8012 ,  C08G2150/20

    摘要： The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder. The invention also relates to the use of polyaddition products containing uretdione groups for PUR powder coatings and for solvent-containing, one-component stoving enamels.

    摘要翻译： 本发明涉及一种制备含有脲二酮基团的加聚产物的方法，其由具有至少两个游离异氰酸酯基团的多异氰酸酯 - 脲二酮制备，二醇以及如果需要的话，制备含有脲二酮基团的加成产物的单醇或单胺 通过在密炼机/挤出机中进行的无溶剂和连续方法。 本发明还涉及含有脲二酮基团的聚加成产物用于PUR粉末涂料和含溶剂的单组分烘烤搪瓷的用途。