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    • 2. 发明申请
    • PRE-TREATMENT OF STEEL
    • 预处理钢
    • WO1998011274A1
    • 1998-03-19
    • PCT/GB1997002495
    • 1997-09-12
    • BRITISH STEEL PLCBAIRD, Amanda, JaneJEFFS, Brian, DavidEDWARDS, Peter, GeraldGOODWIN, Terence, John
    • BRITISH STEEL PLC
    • C23C22/68
    • C23C22/50C23C22/53C23C22/68
    • The application discloses a method of pre-treating steel articles, in particular galvanised steel articles, prior to application of one or more paint layers. A pre-treatment compound is disclosed which comprises the complex formable in solution by immersion of a metallic species in a solution of the compound R-PO(OH)2, where R includes an organic group. The metal can be in native form or as a salt. A solution of this complex can be used as a pre-treatment bath for steel items, resulting in superior adhesion of the paint layer. The application refers to the complex, a solution of the complex, the use of the complex as a coating, and to a method of coating a steel article involving the complex. The R group preferably includes at least one of an epoxy, hydroxy, unsaturated hydrocarbon, amide or carboxylic group, or a combination thereof. Suitable unsaturated hydrocarbon groups include alkenes, vinyl or acrylate groups. Other preferred forms are those in which the R group includes an aliphatic chain to which the paint layer can form an interlocking network. Such a chain is preferably at least C4 long and may be substituted. A solution of the invention preferably includes an accelerator compound, such as peroxide, which may be present in a catalytic amount.
    • 该申请公开了在施加一个或多个涂料层之前预处理钢制品,特别是镀锌钢制品的方法。 公开了一种预处理化合物,其包含通过将金属物质浸入化合物R-PO(OH)2的溶液中而形成的复合物,其中R包括有机基团。 金属可以是天然形式或盐。 该复合物的溶液可用作钢制品的预处理浴,导致涂料层的优异粘附性。 应用是指复合物,复合物的溶液,复合物作为涂层的使用,以及涉及复合物的钢制品的涂布方法。 R基团优选包括环氧基,羟基,不饱和烃,酰胺或羧基中的至少一种或其组合。 合适的不饱和烃基包括烯烃,乙烯基或丙烯酸酯基团。 其它优选的形式是其中R基团包括脂族链的那些,其中涂料层可以形成互锁网络。 这样的链优选为至少C4长,并且可以被取代。 本发明的溶液优选包括可以以催化量存在的促进剂化合物,例如过氧化物。