Pre-coated steel sheets and process for production thereof
    1.
    发明授权
    Pre-coated steel sheets and process for production thereof 失效
    预涂钢板及其制造方法

    公开(公告)号:US4370387A

    公开(公告)日:1983-01-25

    申请号:US245307

    申请日:1981-03-19

    摘要: A precoated steel sheet and a process for production thereof is provided which comprises coating a resin composition comprising mainly an acryloxyloxy- or methacryloyloxy-terminated polyester on the surface of a steel sheet, said acryloyloxy- or methacryloyloxy-terminated polyester being prepared by reacting a hydroxy-terminated polyester comprising (a) a dicarboxylic acid unit containing about 10 to about 80 mol % of a terephthalic acid unit and (b) dihydric alcohol unit containing about 30 mol % or more of a dihydric alcohol unit containing 3 or more carbon atoms, and having a number average molecular weight of about 400 to about 5,000, with acrylic acid or methacrylic acid, and curing the thus-coated resin composition by irradiating the sheet with an electron beam.

    摘要翻译: 提供预涂钢板及其制造方法,其包括在钢板表面上涂覆主要包含丙烯酰氧基氧基或甲基丙烯酰氧基封端的聚酯的树脂组合物,所述丙烯酰氧基或甲基丙烯酰氧基封端的聚酯通过使羟基 (a)含有约10〜约80摩尔%的对苯二甲酸单元的二羧酸单元和(b)含有约30摩尔%以上含有3个以上碳原子的二元醇单元的二元醇单元, 并且用丙烯酸或甲基丙烯酸将数均分子量为约400至约5,000,并通过用电子束照射该片来固化如此涂覆的树脂组合物。