公开(公告)号：EP1047812A2

公开(公告)日：2000-11-02

申请号：EP99902531.5

申请日：1999-01-11

申请人： E.I. DU PONT DE NEMOURS & COMPANY INCORPORATED

发明人： EHMANN, Eduard ,  EVERS, Manfred ,  GÖBEL, Armin ,  VOGT-BIRNBRICH, Bettina ,  MARKOU, Konstadinos

IPC分类号： C25D13/24

CPC分类号： C25D1/00 ,  C25D13/10 ,  C25D13/22 ,  C25D13/24

摘要： The invention relates to an anodic electrophoretic coating method. According to said method, a coating agent used in an anodic electrophoretic bath is compensated with an under-neutralised anodic refill material, said refill material consisting of A) a pigment-free aqueous binder component containing 40 to 70 wt. % solids and ≤0.5 wt. % of an organic solvent and with an meq value of 15 to 40 and B) a pigment-containing aqueous paste resin component containing 60 to 75 wt. % solids and ≤1.0 wt. % of an organic solvent and with an meq value of 5 to 15. The weight ratio of A) to B) is 1:1 to 4:1 and the mixture of A) and B) contains 45 to 73 wt. % solids and ≤0.75 wt. % solvent and has an meq value which is 50 to 70 % lower than that of the electrophoretic bath.

公开(公告)号：EP1047812B1

公开(公告)日：2002-05-08

申请号：EP99902531.5

申请日：1999-01-11

申请人： E.I. DU PONT DE NEMOURS & COMPANY INCORPORATED

发明人： EHMANN, Eduard ,  EVERS, Manfred ,  GÖBEL, Armin ,  VOGT-BIRNBRICH, Bettina ,  MARKOU, Konstadinos

IPC分类号： C25D13/24

CPC分类号： C25D1/00 ,  C25D13/10 ,  C25D13/22 ,  C25D13/24

摘要： The invention relates to an anodic electrophoretic coating method. According to said method, a coating agent used in an anodic electrophoretic bath is compensated with an under-neutralised anodic refill material, said refill material consisting of A) a pigment-free aqueous binder component containing 40 to 70 wt. % solids and