发明授权
- 专利标题： Process for the coating of electrically conductive substrates and a cathodically depositable aqueous electrocoating paint
- 专利标题（中）： 用于涂覆导电基材和阴极可沉积的水性电涂料的方法
-
申请号： US946374申请日： 1993-01-11
-
公开(公告)号： US5338434A公开(公告)日： 1994-08-16
- 发明人: Dieter Ruhl , Klaus Arlt , Ulrich Heilmann , Ulrich Heimann , Udo Hoffmann
- 申请人： Dieter Ruhl , Klaus Arlt , Ulrich Heilmann , Ulrich Heimann , Udo Hoffmann
- 申请人地址： DEX Munster
- 专利权人： BASF Lacke & Farben Aktiengesellschaft
- 当前专利权人： BASF Lacke & Farben Aktiengesellschaft
- 当前专利权人地址： DEX Munster
- 优先权： DEX4015703 19900516
- 主分类号： C09C1/28
- IPC分类号： C09C1/28 ; C09D5/00 ; C09D5/08 ; C09D5/44
摘要：
The invention relates to aqueous electrocoating paints which contain 2 to 10% by weight of an anticorrosive pigment based on zinc silicate in combination with 1 to 15% by weight of a very fine quartz powder or cristobalite powder coated with epoxysilane or aminosilane, the percentages by weight being based on the total solids content of the electrocoating paint and the anticorrosive pigment being preparable by fusing together 35 to 65% by weight of ZnO, 15 to 35% by weight of SiO.sub.2 and 0 to 20% by weight of B.sub.2 O.sub.3 and/or 0 to 20% by weight of WO.sub.3 and/or 0 to 20% by weight of MoO.sub.3 and/or 0 to 20% by weight of SnO.sub.2, the components being fused together using at least one of the cited oxides besides ZnO and SiO.sub.2 in such a manner that the percentages by weight always total 100.