发明名称 |
NICHT-VERGILBENDER KATHODISCHER ELEKTROLACK. |
摘要 |
<p>A method of preventing the yellowing of the outermost coating of a multicoat coating system is disclosed. The method comprises initially depositing onto a conductive substrate by cathodic electrodeposition a primer coating comprising at least one layer of an amine-epoxy resin adduct and a cross-linking agent, and then curing said primer to a hard, durable film. Then, depositing a second coating onto the primer layer comprising at least one layer of a pigmented film-forming basecoat. Then depositing a third outermost coating onto the second coating comprising at least one layer of a clear, film-forming topcoat, and then curing the basecoat and topcoat. The primer coating contains a cross-linking agent selected from the group consisting of aliphatic polyisocyanates containing at least six carbon atoms, the isocyanurates of aliphatic polyisocyanates containing at least six carbon atoms, aromatic polyisocyanates having a molecular weight greater than 174, and the isocyanurates of aromatic diisocyanates having a molecular weight greater than 174. The polyisocyanates or isocyanurates are blocked with a blocking agent.</p> |
申请公布号 |
DE3779396(D1) |
申请公布日期 |
1992.07.02 |
申请号 |
DE19873779396 |
申请日期 |
1987.06.25 |
申请人 |
BASF CORP., PARSIPPANY, N.J., US |
发明人 |
DEBROY, TAPAN K., NOVI MICHIGAN 48050, US;CHUNG, DING-YU, FARMINGTON HILLS MICHIGAN 48018, US |
分类号 |
B05D1/36;B05D7/00;C09D5/44;C09D163/00;C25D13/00;(IPC1-7):C09D5/44;C08G18/80;C08G59/18;C08G18/64 |
主分类号 |
B05D1/36 |
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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