POLYESTER-BASED COATING COMPOSITION FOR METAL SUBSTRATES

    公开(公告)号:WO2012051540A3

    公开(公告)日:2012-04-19

    申请号:PCT/US2011/056376

    申请日:2011-10-14

    Abstract: The present invention provides novel packaging articles, e.g., food and beverage cans, having a novel coating composition applied to at least a portion of a surface thereon. In preferred embodiments, the coating composition includes at least a film-forming amount of a copolyester resin having a backbone that includes one or more soft segments and a plurality of hard segments. The copolyester resin preferably has a glass transition temperature from about from about 10°C to about 50°C. The present invention also provides a method for making coated articles.

    POLYESTER POLYMER AND COATING COMPOSITIONS THEREOF
    4.
    发明申请
    POLYESTER POLYMER AND COATING COMPOSITIONS THEREOF 审中-公开
    聚酯聚合物及其涂料组合物

    公开(公告)号:WO2010062928A1

    公开(公告)日:2010-06-03

    申请号:PCT/US2009/065848

    申请日:2009-11-25

    Abstract: A polymer and coating compositions containing the polymer are provided that are useful in coating applications such as, for example, food or beverage packaging coatings. The polymer preferably includes a polyester backbone and at least one deblockable isocyanate group attached to the backbone. In one embodiment, the polymer includes a polyester-carbamate backbone, one or more pendant deblockable isocyanate groups, and one or more terminal or pendant isocyanate-reactive groups. The deblockable isocyanate groups may be provided, for example, through use of a partially blocked polyisocyanate.

    Abstract translation: 提供了含有聚合物的聚合物和涂料组合物,其可用于涂覆应用,例如食品或饮料包装涂料。 聚合物优选包括聚酯主链和连接至骨架的至少一个可脱封异氰酸酯基团。 在一个实施方案中,聚合物包括聚酯 - 氨基甲酸酯主链,一个或多个侧链可拆封异氰酸酯基团和一个或多个末端或侧链异氰酸酯反应性基团。 可脱封的异氰酸酯基团可以例如通过使用部分封端的多异氰酸酯来提供。

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