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    Surfactants based on monounsaturated fatty alcohol derivatives
    11.
    发明授权
    Surfactants based on monounsaturated fatty alcohol derivatives 有权

    公开(公告)号：US10287530B2

    公开(公告)日：2019-05-14

    申请号：US15606285

    申请日：2017-05-26

    Applicant: Stepan Company

    Inventor： David R. Allen ,  Randal J. Bernhardt ,  Aaron Brown ,  Gregory P. Dado ,  Xue Min Dong ,  Wilma Gorman ,  Ronald Masters ,  Patti Skelton

    IPC: C11D1/14 ,  C07C305/10 ,  A01N25/00 ,  A01N25/30

    Abstract: Surfactant compositions comprising an alkoxylate, a sulfate, or ether sulfate of a C10-C12 monounsaturated alcohol are disclosed. The alkoxylate, sulfate, or ether sulfate may derive from undecylenic acid or undecylenic alcohol. Compared with their saturated analogs, the monounsaturated alkoxylates, sulfates, and ether sulfates are less irritating, making them valuable for personal care, laundry, cleaners, and other household applications. Microscopy studies show that the alkoxylates, sulfates, and ether sulfates have favorable phase behavior over a wide range of actives levels, expanding opportunities for products with greater compaction. When combined with cationic surfactants, the alkoxylates, sulfates, and ether sulfates exhibit synergy, and they have improved solubility compared with their saturated analogs. The surfactants find value for the personal care, laundry and cleaning, emulsion polymerization, agricultural products, oilfield applications, and specialty foams industries.

    Process for preparing N-acyl amino acid salts
    12.
    发明授权
    Process for preparing N-acyl amino acid salts 有权
    制备N-酰基氨基酸盐的方法

    公开(公告)号：US09593072B2

    公开(公告)日：2017-03-14

    申请号：US15017465

    申请日：2016-02-05

    Applicant: STEPAN COMPANY

    Inventor： Bing Wang ,  Gregory P. Dado

    IPC: C07C231/02 ,  C07D233/64 ,  C07D207/16 ,  C07C233/47

    CPC classification number: C07C231/02 ,  C07C233/47 ,  C07D207/16 ,  C07D233/64 ,  C07C237/22

    Abstract: N-Acyl amino acid salt compositions and an improved process for making them from fatty alkyl esters are disclosed. The process comprises reacting a fatty alkyl ester with an amino acid salt in the presence of an alkoxide catalyst at a pressure of at least 5 psig. At least 10 mole percent of catalyst is used based on the amount of fatty alkyl ester used as a reactant. Pressure and a minimum level of alkoxide catalyst are needed to give high fatty alkyl ester conversions and good yields of the desired N-acyl amino acid salt. The resulting N-acyl amino acid salt compositions have low color, an acceptable level of fatty acid soaps, and a small proportion of di-acylated by-products. Single-phase mixtures produced by combining various amino acid salts with glycinates, or by using an excess of either the fatty alkyl ester or amino acid salt, promote high conversions when the mixtures are reacted to give the desired N-acyl amino acid salt.

    Abstract translation: 公开了N-酰基氨基酸盐组合物和由脂肪烷基酯制备它们的改进方法。 该方法包括在烷氧基催化剂存在下，在至少5psig的压力下使脂肪烷基酯与氨基酸盐反应。 基于用作反应物的脂肪烷基酯的量，使用至少10摩尔％的催化剂。 需要压力和最低水平的醇盐催化剂以产生高脂肪烷基酯转化率和所需N-酰基氨基酸盐的良好产率。 所得N-酰基氨基酸盐组合物具有低颜色，可接受水平的脂肪酸皂和少量二酰化副产物。 通过将各种氨基酸盐与甘氨酸盐组合或通过使用过量的脂肪烷基酯或氨基酸盐产生的单相混合物在混合物反应得到所需的N-酰基氨基酸盐时促进高转化率。

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