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    SYNERGISTIC SURFACTANT BLENDS
    1.
    发明申请
    SYNERGISTIC SURFACTANT BLENDS 审中-公开

    公开(公告)号：US20200040279A1

    公开(公告)日：2020-02-06

    申请号：US16601726

    申请日：2019-10-15

    申请人： STEPAN COMPANY

    发明人： Randal J. BERNHARDT ,  Xue Min DONG

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

    摘要： 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.

    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE
    2.
    发明申请
    STEAM FOAM METHODS FOR STEAM-ASSISTED GRAVITY DRAINAGE 审中-公开

    公开(公告)号：US20200182031A1

    公开(公告)日：2020-06-11

    申请号：US16781608

    申请日：2020-02-04

    申请人： Stepan Company

    发明人： Aaron SANDERS ,  Gregory P. DADO ,  Brian HOLLAND ,  Xue Min DONG ,  E. Carolina ROJAS

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

    摘要： 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.

    REDUCED-RESIDUE HARD SURFACE CLEANER AND METHOD FOR DETERMINING FILM/STREAK
    5.
    发明申请
    REDUCED-RESIDUE HARD SURFACE CLEANER AND METHOD FOR DETERMINING FILM/STREAK 有权

    公开(公告)号：US20210139815A1

    公开(公告)日：2021-05-13

    申请号：US17151441

    申请日：2021-01-18

    申请人： STEPAN COMPANY

    发明人： Ronald A. MASTERS ,  Mona Marie KNOCK ,  Patrick Shane WOLFE ,  Timothy A. BOEBEL ,  Xue Min DONG ,  Dennis S. MURPHY

    IPC分类号： C11D1/66 ,  C11D3/37 ,  C11D3/20 ,  C11D17/00

    摘要： Dilutable concentrates useful for hard surface cleaners with improved film/streak performance on high-energy surfaces are disclosed. The concentrates comprise a nonionic alkoxylated surfactant and a polyetheramine. A relatively minor proportion of a polyetheramine can resolve film/streak issues that characterize hard surface cleaners formulated with nonionic surfactants. The efficacy of polyetheramines for improving film/streak performance of hard surface cleaners formulated with nonionic alkoxylated surfactants far exceeds the benefits available from known improvements, such as the use of hydrotropes. Other inventive dilutable concentrates and hard surface cleaners comprise an amine-functional hydrophobe and an auxiliary surfactant. Still other dilutable concentrates or hard surface cleaners comprise a nonionic alkoxylated surfactant and lactic acid. An improved method for measuring film/streak properties of hard surface cleaners is also disclosed.

    POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS
    6.
    发明申请
    POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS 审中-公开

    公开(公告)号：US20200255593A1

    公开(公告)日：2020-08-13

    申请号：US16836676

    申请日：2020-03-31

    申请人： STEPAN COMPANY

    发明人： Timothy A. BOEBEL ,  Xue Min DONG ,  E. Carolina ROJAS ,  Renee LUKA ,  Gary LUEBKE

    IPC分类号： C08G65/26 ,  C08K3/013 ,  C08K5/00 ,  C08J3/05 ,  C08C2/00

    摘要： Polymers useful in formulating dispersing agents for pigments are disclosed. One such polymer can be made from a glycidyl intermediate. A nucleophilic initiator can be reacted with epichlorohydrin to produce a glycidyl intermediate. This intermediate is reacted with an aralkylated phenol to give a hydroxy-functional hydrophobe. Alkoxylation of the hydrophobe gives the desired polymer. In an alternative, approach, the polymer is made by reacting the nucleophilic initiator with an aralkylated phenol glycidyl ether to give the hydroxy-functional hydrophobe, which is then alkoxylated. Pigments dispersions comprising the polymers are also disclosed. The polymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the polymers are also disclosed.

    POLYMERIC DISPERSANTS FROM PHENYL GLYCIDYL ETHER
    7.
    发明申请
    POLYMERIC DISPERSANTS FROM PHENYL GLYCIDYL ETHER 审中-公开

    公开(公告)号：US20200223988A1

    公开(公告)日：2020-07-16

    申请号：US16836544

    申请日：2020-03-31

    申请人： STEPAN COMPANY

    发明人： Timothy A. BOEBEL ,  Xue Min DONG ,  E. Carolina ROJAS ,  Renee LUKA ,  Gary LUEBKE ,  Paul W. KNOX

    IPC分类号： C08J3/09 ,  A01N25/04 ,  A01N25/14 ,  A01N43/70 ,  A01N37/34 ,  A01N43/50 ,  A01N43/653 ,  C09D5/02 ,  C08L71/02 ,  C08G65/26

    摘要： Copolymers comprising recurring units of a phenyl glycidyl ether and alkylene oxides are disclosed. Some of the copolymers comprise a di- or polyfunctional nucleophilic initiator and recurring units of the phenyl glycidyl ether and an alkylene oxide. The di- or polyfunctional nucleophilic initiator is an alcohol, phenol, amine, thiol, thiophenol, sulfinic acid, or deprotonated species thereof. Other copolymers comprise a monofunctional nucleophilic initiator selected from thiols, thiophenols, aralkylated phenols, sulfinic acids, secondary amines, C10-C20 terpene alcohols, and deprotonated species thereof. Pigments dispersions comprising the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the copolymers are also disclosed.