公开(公告)号：EP1230033A4

公开(公告)日：2004-12-08

申请号：EP00955545

申请日：2000-08-16

申请人： HENKEL CORP

发明人： BANNAI HIROKATSU ,  NAGASHIMA YASUHIKO ,  NAKAYAMA TAKAOMI

IPC分类号： B05D3/10 ,  C23C22/10 ,  C23C22/12 ,  C23C22/13 ,  C23C22/22 ,  C23C22/36 ,  C23C22/44 ,  C23C22/78 ,  B05D1/18 ,  C23C22/07

CPC分类号： C23C22/22 ,  C23C22/13 ,  C23C22/368 ,  C23C22/44 ,  C23C22/73 ,  C23C22/78

摘要： A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent cations type and an adhesion promoting agent. After such conditioning, a very high quality conversion coating can be formed on the surface by contact with a nickel-free liquid phosphating composition that contains at least acid, zinc cations, and phosphate anions and optionally and preferably also contains other materials.