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    SYNERGISTIC SURFACTANT BLENDS
    11.
    发明申请
    SYNERGISTIC SURFACTANT BLENDS 审中-公开

    公开(公告)号：US20150094383A1

    公开(公告)日：2015-04-02

    申请号：US14395082

    申请日：2013-04-12

    Applicant: Stepan Company

    Inventor： Randal J. Bernhardt ,  Xue Min Dong

    IPC: C11D1/65 ,  C09K8/584 ,  A01N25/04 ,  A61Q19/00 ,  A61K8/46 ,  A61K8/49

    CPC classification number: C11D1/65 ,  A01N25/04 ,  A61K8/416 ,  A61K8/466 ,  A61K8/4946 ,  A61K2800/596 ,  A61Q5/02 ,  A61Q19/00 ,  A61Q19/10 ,  C09K8/584 ,  C11D1/02 ,  C11D1/62 ,  C11D1/652 ,  C11D11/0017 ,  C11D11/0023

    Abstract: Synergistic surfactant blends are disclosed. In one aspect, the blend comprises an anionic surfactant and a metathesis-based cationic surfactant comprising a quaternized derivative. The quaternized derivative is a quaternized fatty amine, quaternized fatty amidoamine, imidazoline quat, or esteramine quat made from a metathesis-derived C10-C17 monounsaturated acid or its ester derivative. Also disclosed are synergistic surfactant blends comprising a cationic surfactant and a metathesisbased anionic surfactant comprising a sulfonated derivative. The sulfonated derivative is a fatty ester sulfonate, fatty acid sulfonate, sulfoestolide, fatty amide sulfonate, sulfonated fatty ester alkoxylate, imidazoline quat sulfonate, sulfonated amidoamine oxide, or sulfonated amidoamine betaine. The synergistic blends have a negative value or a reduced interfacial tension (IFT) when compared with an expected IFT value calculated from the individual surfactant components. Blends of the invention also exhibit surprisingly favorable solubility profiles.

    Abstract translation: 公开了协同表面活性剂共混物。 一方面，共混物包含阴离子表面活性剂和包含季铵化衍生物的基于复分解的阳离子表面活性剂。 季铵化衍生物是由复分解衍生的C10-C17单不饱和酸或其酯衍生物制成的季铵化脂肪胺，季铵化脂肪酰氨基胺，咪唑啉季铵盐或酯胺季铵盐。 还公开了包含阳离子表面活性剂和包含磺化衍生物的易位素阴离子表面活性剂的协同表面活性剂共混物。 磺化衍生物是脂肪酯磺酸盐，脂肪酸磺酸盐，磺基甲基醚，脂肪酰胺磺酸盐，磺化脂肪酸酯烷氧基化物，咪唑啉季磺酸盐，磺化酰氨基胺氧化物或磺化酰氨基胺甜菜碱。 当与由各个表面活性剂组分计算的预期IFT值相比时，协同共混物具有负值或降低的界面张力（IFT）。 本发明的共混物也表现出令人惊讶的有利的溶解度曲线。

    Steam foam methods for steam-assisted gravity drainage
    12.
    发明授权
    Steam foam methods for steam-assisted gravity drainage 有权

    公开(公告)号：US10590749B2

    公开(公告)日：2020-03-17

    申请号：US15503293

    申请日：2015-07-31

    Applicant: Stepan Company

    Inventor： Aaron Sanders ,  Gregory P. Dado ,  Brian Holland ,  Xue Min Dong ,  E. Carolina Rojas

    IPC: E21B43/24 ,  E21B43/30 ,  C09K8/584

    Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.

    Synergistic surfactant blends
    13.
    发明授权
    Synergistic surfactant blends 有权

    公开(公告)号：US10513670B2

    公开(公告)日：2019-12-24

    申请号：US15482932

    申请日：2017-04-10

    Applicant: STEPAN COMPANY

    Inventor： Randal J. Bernhardt ,  Xue Min Dong

    IPC: C11D1/65 ,  A01N25/04 ,  A61K8/46 ,  A61K8/49 ,  A61Q19/00 ,  C09K8/584 ,  A61K8/41 ,  A61Q5/02 ,  A61Q19/10 ,  C11D11/00 ,  C11D1/02 ,  C11D1/62

    Abstract: Synergistic surfactant blends are disclosed. In one aspect, the blend comprises an anionic surfactant and a metathesis-based cationic surfactant comprising a quaternized derivative. The quaternized derivative is a quaternized fatty amine, quaternized fatty amidoamine, imidazoline quat, or esteramine quat made from a metathesis-derived C10-C17 monounsaturated acid or its ester derivative. Also disclosed are synergistic surfactant blends comprising a cationic surfactant and a metathesis-based anionic surfactant comprising a sulfonated derivative. The sulfonated derivative is a fatty ester sulfonate, fatty acid sulfonate, sulfoestolide, fatty amide sulfonate, sulfonated fatty ester alkoxylate, imidazoline quat sulfonate, sulfonated amidoamine oxide, or sulfonated amidoamine betaine. The synergistic blends have a negative β value or a reduced interfacial tension (IFT) when compared with an expected IFT value calculated from the individual surfactant components. Blends of the invention also exhibit surprisingly favorable solubility profiles. The surfactant blends are useful for laundry detergents, dish detergents, household or industrial cleaners, personal care products, agricultural products, building materials, oil recovery compositions, emulsion polymers, and other practical applications.

    ALPHA-OLEFIN SULFONIC DIMER ACID PROCESS
    14.
    发明申请
    ALPHA-OLEFIN SULFONIC DIMER ACID PROCESS 审中-公开

    公开(公告)号：US20180222854A1

    公开(公告)日：2018-08-09

    申请号：US15749798

    申请日：2016-07-28

    Applicant: STEPAN COMPANY

    Inventor： Gregory P. Dado ,  Aaron Sanders ,  Xue Min Dong ,  Carolina E. Rojas

    IPC: C07C303/06

    CPC classification number: C07C303/06 ,  C07C309/20

    Abstract: Methods of making an alpha-olefin sulfonic dimer acid (AOS dimer acid) are disclosed. In one method, an alpha-olefin is sulfonated, preferably with sulfur trioxide, to produce a mixture comprising an alpha-olefin sulfonic acid (AOS acid) and sulfur dioxide. This mixture is then heated while purging sulfur dioxide and hydrogen sulfide from the reactor to produce an AOS dimer acid composition. In another method, the AOS acid mixture is treated to remove sulfur dioxide and is then heated to produce an AOS dimer acid composition. With either method, the resulting AOS dimer acid composition has at least a 30% decrease in the level of elemental sulfur when compared with that of an AOS dimer acid composition prepared by a similar process in the absence of any active removal of sulfur dioxide or hydrogen sulfide. AOS dimer acid compositions and salts of the AOS dimer acids, which are useful surfactants for oilfield and other applications, are also disclosed.

    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE
    15.
    发明申请
    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE 审中-公开

    公开(公告)号：US20170226836A1

    公开(公告)日：2017-08-10

    申请号：US15503293

    申请日：2015-07-31

    Applicant: Stepan Company

    Inventor： Aaron Sanders ,  Gregory P. Dado ,  Brian Holland ,  Xue Min Dong ,  Carolina E. Rojas

    IPC: E21B43/24 ,  C09K8/584 ,  E21B43/30

    CPC classification number: E21B43/2408 ,  C09K8/584 ,  E21B43/305

    Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.

    Alkyl lactyllactates and processes of making the same
    18.
    发明授权
    Alkyl lactyllactates and processes of making the same 有权
    烷基乳酸乳酸酯及其制备方法

    公开(公告)号：US09133092B2

    公开(公告)日：2015-09-15

    申请号：US14146662

    申请日：2014-01-02

    Applicant: Stepan Company

    Inventor： David R Allen ,  Anatoliy A. Dameshek ,  Branko Sajic ,  Irene Shapiro ,  Xue Min Dong ,  Christopher D Smith ,  Jacqueline M Pytel ,  Jeremy Weitgenant

    IPC: C07C67/03 ,  C07C67/08 ,  A61K8/37 ,  A61Q5/02 ,  A61Q15/00 ,  A61Q19/10 ,  C07C69/68

    CPC classification number: C07C67/08 ,  A61K8/37 ,  A61Q5/02 ,  A61Q15/00 ,  A61Q19/10 ,  C07B2200/07 ,  C07C67/03 ,  C07C69/68

    Abstract: Provided are alkyl lactyllactate compositions that can be prepared from (1) lactide or alternatively lactic acid, and (2) a hydroxyl containing compound such as an alcohol, preferably a fatty alcohol or an alkoxylated alcohol, with (3) an acid catalyst. Preferably, the fatty alcohol contains from about 6 to 18 carbon atoms, such as lauryl alcohol. The alkyl lactyllactates can be used as surfactants, emulsifiers, skin feel agents, film formers, thickeners, rheological modifiers, etc., for personal care and other application areas. Compositions containing at least one alkyl lactyllactate are also provided. The compositions can further contain at least one surfactant.

    Abstract translation: 本发明提供可由（1）丙交酯或乳酸制备的乳酸乳糖酯组合物，和（2）含羟基化合物如醇，优选脂肪醇或烷氧基化醇与（3）酸催化剂。 优选地，脂肪醇含有约6至18个碳原子，例如月桂醇。 乳酸乳酸烷基酯可用作个人护理和其他应用领域的表面活性剂，乳化剂，皮肤感觉剂，成膜剂，增稠剂，流变改性剂等。 还提供了含有至少一种乳糖基乳酸酯的组合物。 组合物还可以含有至少一种表面活性剂。

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