发明名称 |
VERFAHREN ZUR HERSTELLUNG KATHODISCH ABSCHEIDBARER ELEKTROTAUCHLACKBINDEMITTEL |
摘要 |
A process for the preparation of self-crosslinking, cathodic electrocoating binders by reacting polyether-polyols, which may or may not contain thio groups, with semi-blocked diisocyanates or partially blocked polyisocyanates, wherein the reaction products (A), containing blocked isocyanate groups, are reacted with a polyamine (B), some of whose amino groups may or may not be in the form of ketimine groups, in such a way that one or more amino groups of the polyamine (B) form a urea group with a blocked isocyanate group of the reaction product (A), and the self-cross-linking reaction product of (A) and (B) is converted into a water-dilutable form in the conventional manner by protonization with an acid. The coating binders prepared according to the invention may be used for cathodic electrocoating of metal articles. |
申请公布号 |
DE2845988(A1) |
申请公布日期 |
1980.04.24 |
申请号 |
DE19782845988 |
申请日期 |
1978.10.23 |
申请人 |
BASF AG |
发明人 |
ERDMANN,DIPL.-CHEM.DR. KEMPTER,FRITZ;SCHUPP,EBERHARD,DIPL.-CHEM.DR.;GULBINS,ERICH,DIPL.-CHEM.DR. |
分类号 |
C08G18/00;C08G18/08;C08G18/65;C08G18/66;C08G18/80;C09D5/44;C09D175/08 |
主分类号 |
C08G18/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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