中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.044 seconds)

    METHOD FOR BOOSTING BLOCKING RESISTANCE OF WATERBORNE COATINGS
    1.
    发明申请
    METHOD FOR BOOSTING BLOCKING RESISTANCE OF WATERBORNE COATINGS 审中-公开

    公开(公告)号：WO2022150168A1

    公开(公告)日：2022-07-14

    申请号：PCT/US2021/063897

    申请日：2021-12-16

    Applicant: STEPAN COMPANY

    Inventor： DONG, Xue Min ,  LUEBKE, Gary ,  ZAUG, Julia ,  VARGAS, Carolina R. ,  KANG, Sae Rom

    IPC: C09D5/02 ,  C09D7/63

    Abstract: A method for boosting the high-temperature blocking resistance of a cured coating made from a waterborne coating formulation is disclosed. Blocking resistance is boosted by incorporating an additive which comprises an organoamine salt of a non-ethoxylated C4-C15 alkyl phosphate. Also disclosed are waterborne coating formulations and cured coatings produced from the formulation. The coating formulations comprise an acrylic latex, water, a dispersant, a pigment, and the anti-blocking additive. Surprisingly, the organoamine salts demonstrate good wetting properties as well as improved high-temperature blocking resistance, much better water solubility, and easier handling when compared with the corresponding alkali metal or ammonium salts. The additives are cost effective and offer environmental and recoating advantages when compared with the fluorochemicals currently available as anti-blocking additives.

    REACTIVE SURFACTANTS
    2.
    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.

Patent Agency Ranking