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    REACTIVE SURFACTANTS
    1.
    发明申请
    REACTIVE SURFACTANTS 审中-公开

    公开(公告)号：WO2020185513A1

    公开(公告)日：2020-09-17

    申请号：PCT/US2020/021189

    申请日：2020-03-05

    Applicant: STEPAN COMPANY

    Inventor： BOEBEL, Timothy, A. ,  FARRIS, Samantha Michelle ,  LUEBKE, Gary ,  ROJAS, E., Carolina ,  SPAULDING, Chris ,  TERRY, Michael, R. ,  WOLFE, Patrick Shane ,  ZAUG, Julia

    IPC: C07C41/03 ,  C07C67/08 ,  C07C303/28 ,  C07C319/14 ,  C07D295/088 ,  C07F9/12 ,  C08F2/26

    Abstract: Processes for making reactive surfactants are disclosed. In one such process, a fatty epoxide, a glycidyl ether, or a combination thereof is reacted with an olefin-functional nucleophile to produce an olefin-functional hydrophobe. The olefin-functional hydrophobe is reacted with ethylene oxide, propylene oxide, butylene oxides, or a combination thereof to produce an alkoxylate. Optionally, the alkoxylate is converted to the corresponding sulfate, phosphate, or maleate. Surfactant compositions comprising the reactive surfactants made by these processes are also described. The invention includes polymerizable mixtures comprising an acrylic monomer and the surfactant compositions as well as aqueous acrylic latex emulsions and coatings produced from the emulsions. The reactive surfactants deliver stable latex emulsions with reduced tendency for surfactant migration or excessive foaming. Coatings from the emulsions have improved wet adhesion, scrub resistance, and water resistance.

    POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS
    2.
    发明申请
    POLYMERIC DISPERSANTS FROM ARALKYLATED PHENOLS 审中-公开

    公开(公告)号：WO2019074896A1

    公开(公告)日：2019-04-18

    申请号：PCT/US2018/054958

    申请日：2018-10-09

    Applicant: STEPAN COMPANY

    Inventor： BOEBEL, Timothy, A. ,  DONG, Xue, Min ,  ROJAS, Carolina, E. ,  LUKA, Renne ,  LUEBKE, Gary

    IPC: C08G59/18 ,  C08G65/26

    Abstract: 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.

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