发明授权
- 专利标题: CATHODIC ELECTROCOATING COMPOSITIONS CONTAINING HYDROXYL-CARBONATE BLOCKED POLYISOCYANATE CROSSLINKING AGENT
- 专利标题(中): 阴极电涂料组合AS固化剂羟基酯封闭异氰酸酯含
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申请号: EP02766273.3申请日: 2002-09-12
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公开(公告)号: EP1425354B1公开(公告)日: 2005-03-16
- 发明人: GAM, Allisa
- 申请人: E.I. du Pont de Nemours and Company
- 申请人地址: 1007 Market Street Wilmington, DE 19898 US
- 专利权人: E.I. du Pont de Nemours and Company
- 当前专利权人: E.I. du Pont de Nemours and Company
- 当前专利权人地址: 1007 Market Street Wilmington, DE 19898 US
- 代理机构: Morf, Jan Stefan, Dr. Dipl.-Chem.
- 优先权: US950911 20010912
- 国际公布: WO2003022941 20030320
- 主分类号: C09D5/44
- IPC分类号: C09D5/44 ; C08G18/28 ; C08G18/80
摘要:
An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent; wherein the improvement is the use of a hydoxyl-carbonate blocked polyisocyanate crosslinking agent. Electrodeposited finishes are formed that have reduced weight loss when heated to cure.
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