Anticorrosive primer composition
    1.
    发明授权
    Anticorrosive primer composition 失效
    防腐底漆组合物

    公开(公告)号:US5468461A

    公开(公告)日:1995-11-21

    申请号:US294812

    申请日:1994-08-25

    摘要: An anticorrosive primer composition comprises (1) 100 parts by weight of an epoxy resin having a number-average molecular weight of from 500 to 10,000, (2) from 10 to 60 parts by weight of an aromatic polyamine containing from 2% to 30% by weight, based on the aromatic polyamine, of a promoter selected from the group consisting of phenol compounds and cresol compounds, (3) from 10 to 60 parts by weight of a polyisocyanate, (4) from 10 to 40 phr, based on the sum of components (1), (2), and (3), of silica particles of colloidal silica or fumed silica or a mixture of these, (5) from 0.5 to 5 phr of a lubricant, and (6) an organic solvent. The composition is particularly suitable for use to apply onto the chromate coating of a chromated, zinc-plated steel sheet.

    摘要翻译: 防腐底漆组合物包含(1)100重量份的数均分子量为500至10,000的环氧树脂,(2)10至60重量份的含有2至30重量%的芳族多胺, 基于芳族多胺,选自苯酚化合物和甲酚化合物的促进剂,(3)10至60重量份的多异氰酸酯,(4)10至40phr,基于 胶体二氧化硅或热解二氧化硅的二氧化硅颗粒或其混合物的组分(1),(2)和(3)的总和,(5)0.5至5phr的润滑剂,和(6)有机溶剂 。 该组合物特别适合用于镀铬铬镀锌钢板的铬酸盐涂层上。