发明授权
- 专利标题： Method of coating electrically conductive substrates, aqueous electrodip paints, process for the preparation of an aqueous dispersion of crosslinked polymer microparticles and dispersions prepared by this process
- 专利标题（中）： 涂覆导电性基材，水性电涂料的方法，制备交联聚合物微粒的水性分散体的方法和通过该方法制备的分散体
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申请号： US284406申请日： 1994-08-22
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公开(公告)号： US5589049A公开(公告)日： 1996-12-31
- 发明人: G unther Ott , Hardy Reuter , Walter Jouck , Susanne Piontek , Ulrich Heimann , John Gilbert
- 申请人： G unther Ott , Hardy Reuter , Walter Jouck , Susanne Piontek , Ulrich Heimann , John Gilbert
- 申请人地址： DEX Muenster-Hiltrup
- 专利权人： BASF Lacke +Farben, AG
- 当前专利权人： BASF Lacke +Farben, AG
- 当前专利权人地址： DEX Muenster-Hiltrup
- 优先权： DEX4204581.9 19920215
- 主分类号： C09D5/44
- IPC分类号： C09D5/44 ; C09D163/00 ; C25D13/06 ; C25D13/04
摘要：
The invention relates to a method of of coating electrically conductive substrates using cathodically depositable electrodip paints. The invention is notable in that the electrodip paints employed contain crosslinked polymer microparticles which can be prepared by reacting(A) a compound which contains on average more than 1.0 epoxide groups per molecule, or a mixture of such compounds, and(B) a compound which contains not only a group reactive toward epoxide groups but also at least one ketimine or aldimine group in the molecule, or a mixture of such compoundsto give a noncrosslinked intermediate product (C), which still contains on average at least one epoxide group per molecule, and dispersing this intermediate product in the presence of a Br onsted acid in an aqueous medium.
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