WATERBORNE COATING COMPOSITION
    1.
    发明公开

    公开(公告)号:US20240271003A1

    公开(公告)日:2024-08-15

    申请号:US18569041

    申请日:2022-06-14

    CPC classification number: C09D175/14 C08G18/6254 C08G18/73 C09D5/022

    Abstract: The present invention relates to a polyacrylate dispersion comprising a multiphase acrylic polymer, the multiphase acrylic polymer comprising at least one vinyl polymer phase VP1 and one vinyl polymer phase VP2. the multiphase acrylic polymer being prepared by multiple step emulsion polymerization. The present invention also relates to an aqueous coating composition comprising the polyacrylate dispersion, a polyurethane dispersion, and a polyisocyanate crosslinker; to the use thereof in aqueous base coats. especially suitable in, but not limited to, automotive industry.

    Coating system for RMA crosslinkable coating compositions

    公开(公告)号:US11542395B2

    公开(公告)日:2023-01-03

    申请号:US16612871

    申请日:2018-05-15

    Abstract: The invention relates to a coating system comprising I) a primer coating composition comprising a binder component PA that contains primary amine functionality blocked with a ketone or aldehyde, a binder component PB that contains acetoacetate or acetoacetamide functional groups and II) a RMA crosslinkable coating composition a component A with at least two acidic protons C—H in activated methylene or methine groups, a component B with at least two activated unsaturated C═C groups and a base crosslinking catalyst C. The invention also relates to the use of the specified primer coating composition for improving adhesion of a RMA crosslinkable coating composition, in particular to metal substrates, to a method for coating a substrate and to coated substrates coated with the coating system of the invention.

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