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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
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.
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