Aqueous cationic tenside preparations, method for the production and use thereof
    4.
    发明授权
    Aqueous cationic tenside preparations, method for the production and use thereof 失效
    水性阳离子表面活性剂制备方法及其制备方法

    公开(公告)号:US06509012B1

    公开(公告)日:2003-01-21

    申请号:US09403638

    申请日:1999-10-25

    IPC分类号: A61K708

    摘要: The disclosure sets forth aqueous cationic surfactant formulations and a process for their preparation. The formulations contains in solution a) from 10 to 50% by weight of a quaternary ammonium compound of the formula I: where: the substituents have the meanings set forth in the description, and b) from 0.01 to 15% by weight of an amine of the formula III: and c) from 0.1 to 5.0% by weight of a buffer which maintains a pH in a range from 4 to 9. The surfactant formulation is prepared by reacting an amine of the formula III in aqueous solution with a dialkyl sulfate of the formula IV where R1 to R5 are in a molar ratio range from 85 to 99.99 mol %, based on the amine and at from 20 to 100 degrees C. and then adding to the reaction solution from 0.1 to 5.0% by weight of a buffer which maintains a pH in a range from 4 to 9.

    摘要翻译: 本公开提出了阳离子表面活性剂水溶液及其制备方法。 所述制剂在溶液中含有10至50重量%的式I季铵化合物:其中:取代基具有说明书中所述的含义,和b)0.01至15重量%的胺 的式III:和c)0.1至5.0重量%的保持pH在4至9范围内的缓冲液。表面活性剂制剂通过使式IIIin水溶液中的胺与硫酸二烷基酯 式IV其中R 1至R 5的摩尔比为85至99.99mol%,基于胺,并且在20至100℃下,然后向反应溶液中加入0.1至5.0重量%的缓冲液, 保持pH在4至9的范围内。