Water-Based Primer Compositions
    52.
    发明申请
    Water-Based Primer Compositions 有权
    水性底漆组合物

    公开(公告)号:US20100021742A1

    公开(公告)日:2010-01-28

    申请号:US12225878

    申请日:2007-04-05

    Abstract: This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, which is prepared by dispersing a modified polyolefin (a) in an aqueous medium, the polyolefin (a) being produced by modifying an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (i) having a melting point not higher than 120° C. and an weight-average molecular weight within a range of 30,000-200,000, further with a compound having polyoxyalkylene chain; (B) at least one kind of aqueous resin selected from aqueous urethane resin, aqueous acrylic resin and aqueous polyester resin; and (C) pigment; the solid weight ratio of the component (A)/component (B) being within a range of 20/80-85/15, and containing the component (C) in an amount within a range of 0.5-200 parts by weight per 100 parts by weight of the total solid resin content of the composition. Use of the water-based primer composition enables to form coating film excelling in water resistance, humidity resistance, gasohol resistance and the like.

    Abstract translation: 本发明提供了一种水性底漆组合物,其包含(A)通过将改性聚烯烃(a)分散在水性介质中制备的改性聚烯烃的水分散体,所述聚烯烃(a)通过将不饱和羧酸 - 或者具有熔点不高于120℃,重均分子量在30,000-200,000范围内的酸酐改性聚烯烃(i),还有具有聚氧化烯链的化合物; (B)选自水性聚氨酯树脂,水性丙烯酸树脂和水性聚酯树脂中的至少一种水性树脂; 和(C)颜料; 成分(A)/成分(B)的固体重量比在20/80〜85/15的范围内,成分(C)的含量为0.5〜200重量份/ 100 占组合物总固体树脂含量的重量份。 使用水性底漆组合物能够形成耐水性,耐湿性,耐汽油性等优异的涂膜。

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