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    PROCESS FOR THE SYNTHESIS OF HIGHLY PURE CATIONIC SURFACTANT PRODUCTS
    2.
    发明申请
    PROCESS FOR THE SYNTHESIS OF HIGHLY PURE CATIONIC SURFACTANT PRODUCTS 审中-公开
    合成高纯度阳离子表面活性剂产品的方法

    公开(公告)号：US20140323756A1

    公开(公告)日：2014-10-30

    申请号：US14369410

    申请日：2012-05-04

    申请人： Dilip S. Mehta ,  Mayank Shastri

    发明人： Dilip S. Mehta ,  Mayank Shastri

    IPC分类号： C07C277/08

    CPC分类号： C07C277/08 ,  C07C279/14

    摘要： The present invention is related to synthesis of highly pure cationic surfactant products by eliminating or reducing impurities generation that has beset prior art. This is achieved through the N-acylation of ester of amino acid and its inorganic salts or its organic salts (e.g. amino acid or hydrochloride of amino acid or sulfate of amino acid or acetate of amino acid etc.) in non-hydrolytic or nearly non-hydrolytic reaction conditions involving mono or biphasic reaction system with fatty acid halide (C4 to C20), under moderate uniform basic condition yielding high purity N-acyl substituted amino acid ester, particularly ethyl lauroyl arginate. The present process achieves pH control through process strategy rather than the measurement and control steps. This ambient temperature process is stable through a range of temperature variation eliminating rigid low temperature control.

    摘要翻译： 本发明涉及通过消除或减少现有技术中杂质产生来合成高纯度阳离子表面活性剂产品。 这是通过氨基酸及其无机盐或其有机盐（例如氨基酸或氨基酸的硫酸盐或氨基酸的乙酸盐的氨基酸或盐酸盐）的N-酰化在非水解或几乎不 水解反应条件涉及单或双相反应体系与脂肪酰卤（C4至C20），在中等均匀碱性条件下，产生高纯度N-酰基取代的氨基酸酯，特别是精氨酸月桂酸乙酯。 本方法通过过程策略而不是测量和控制步骤实现pH控制。 这种环境温度过程通过一系列温度变化而稳定，消除了刚性低温控制。

    Process for the synthesis of highly pure cationic surfactant products
    3.
    发明授权
    Process for the synthesis of highly pure cationic surfactant products 有权

    公开(公告)号：US10287242B2

    公开(公告)日：2019-05-14

    申请号：US14369410

    申请日：2012-05-04

    申请人： Dilip S. Mehta ,  Mayank Shastri

    发明人： Dilip S. Mehta ,  Mayank Shastri

    IPC分类号： C07C229/00 ,  C07C277/08

    摘要： The present invention is related to synthesis of highly pure cationic surfactant products by eliminating or reducing impurities generation that has beset prior art. This is achieved through the N-acylation of ester of amino acid and its inorganic salts or its organic salts (e.g. amino acid or hydrochloride of amino acid or sulfate of amino acid or acetate of amino acid etc.) in non-hydrolytic or nearly non-hydrolytic reaction conditions involving mono or biphasic reaction system with fatty acid halide (C4 to C20), under moderate uniform basic condition yielding high purity N-acyl substituted amino acid ester, particularly ethyl lauroyl arginate. The present process achieves pH control through process strategy rather than the measurement and control steps. This ambient temperature process is stable through a range of temperature variation eliminating rigid low temperature control.