Method and system for low temperature cure of automotive refinish coatings
    1.
    发明授权
    Method and system for low temperature cure of automotive refinish coatings 有权
    汽车修补涂料的低温固化方法和系统

    公开(公告)号:US6436477B2

    公开(公告)日:2002-08-20

    申请号:US77119701

    申请日:2001-01-26

    Applicant: BASF CORP

    Abstract: A polyurethane coating is prepared on a substrate using a multi-component coating composition having a first component containing a polyisocyanate material, a second component containing a polymeric polyol, and a third component containing a compound having at least two hindered secondary amine groups by first determining the temperature at curing of the coating will take place and then combining the first and second components and, when the cure temperature is less than about 20° C., particularly less than about 10° C., also combining the third component to prepare a combined coating composition; then applying the combined coating composition to the substrate and curing the applied coating layer.

    Abstract translation: 使用多组分涂料组合物在基材上制备聚氨酯涂层,所述多组分涂料组合物具有含有多异氰酸酯材料的第一组分,含有聚合多元醇的第二组分和含有具有至少两个受阻仲胺基团的化合物的第三组分,首先确定 将发生涂层的固化温度,然后组合第一和第二组分,并且当固化温度低于约20℃,特别是小于约10℃时,还将第三组分组合以制备 组合涂料组成; 然后将组合的涂料组合物施加到基底上并固化涂覆的涂层。

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