Aminoplast-based crosslinkers and powder coating compositions containing such crosslinkers
    5.
    发明授权
    Aminoplast-based crosslinkers and powder coating compositions containing such crosslinkers 失效
    含有氨基塑料的交联剂和含有这种交联剂的粉末涂料组合物

    公开(公告)号:US06451928B1

    公开(公告)日:2002-09-17

    申请号:US09666575

    申请日:2000-09-21

    IPC分类号: C08G6391

    摘要: Provided is a crosslinking agent which is the ungelled reaction product of a polyester polyol and an aminotriazine compound having one or less non-alkylated NH bond per triazine ring. The polyester polyol is the reaction product of a cycloaliphatic polyol and a cyclic polycarboxylic acid or anhydride. The crosslinking agent is essentially free of hydroxyl functionality and has a glass transition temperature of at least 10° C. Further provided is a powder coating composition including a solid particulate film-forming mixture of a polymer containing reactive functional groups and having a Tg of at least 30° C., and the crosslinking agent. Additionally provided is a multi-layer composite coating composition having a basecoat layer deposited from a basecoat film-forming composition and a topcoat over the basecoat deposited from the previously described powder coating composition. Coated substrates are also provided.

    摘要翻译: 提供了一种交联剂,其是聚酯多元醇和具有每个三嗪环具有一个或多个非烷基化NH键的氨基三嗪化合物的未凝胶化反应产物。 聚酯多元醇是脂环族多元醇与环状多元羧酸或酸酐的反应产物。 交联剂基本上不含羟基官能团并且具有至少10℃的玻璃化转变温度。还提供了一种粉末涂料组合物,其包含含有反应性官能团并且具有Tg的Tg的聚合物的固体颗粒成膜混合物 至少30℃,和交联剂。 另外提供了一种多层复合涂料组合物,其具有从底涂层成膜组合物沉积的底涂层和在前述粉末涂料组合物沉积的底涂层上的顶涂层。 还提供涂覆的基材。

    METHODS FOR REDUCING THE TIME TO PRODUCE A MAR AND/OR SCRATCH RESISTANT COATING ON A SUBSTRATE
    9.
    发明申请
    METHODS FOR REDUCING THE TIME TO PRODUCE A MAR AND/OR SCRATCH RESISTANT COATING ON A SUBSTRATE 审中-公开
    用于减少在基材上生产MAR和/或耐刮擦涂层的时间的方法

    公开(公告)号:US20070196661A1

    公开(公告)日:2007-08-23

    申请号:US11461856

    申请日:2006-08-02

    摘要: Disclosed are methods for reducing the time required to produce a mar and/or scratch resistant coating on a substrate. The methods comprise (a) applying a coating composition to the substrate, then (b) partially crosslinking crosslinkable components in the composition, and then (c) allowing the coating composition to post cure, wherein, between steps (b) and (c), and after step (c), a mar and/or scratch resistant coating is present on the substrate. Also disclosed are substrates, such as plastic substrates, at least partially coated with a coating produced by such methods as well as related articles of manufacture.

    摘要翻译: 公开了一种减少在基材上生产耐磨损和/或抗划伤涂层所需的时间的方法。 所述方法包括(a)将涂料组合物施用到基材上,然后(b)部分交联组合物中的可交联组分,然后(c)使涂料组合物后固化,其中步骤(b)和(c) ,并且在步骤(c)之后,在基材上存在耐磨损和/或耐刮擦涂层。 还公开了至少部分地涂覆有通过这些方法生产的涂层以及相关制品的基材,例如塑料基材。