发明授权
- 专利标题： Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature
- 专利标题（中）： 聚氨酯粉末涂料组合物不会分解阻断剂并且具有低烘烤温度
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申请号： US11094589申请日： 2005-03-30
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公开(公告)号： US07767778B2公开(公告)日： 2010-08-03
- 发明人: James Rawlins , Michael Grahl , Dorota Greszta-Franz , Hans-Josef Laas , Reinhard Halpaap
- 申请人： James Rawlins , Michael Grahl , Dorota Greszta-Franz , Hans-Josef Laas , Reinhard Halpaap
- 申请人地址： DE Leverkusen
- 专利权人： Bayer MaterialScience AG
- 当前专利权人： Bayer MaterialScience AG
- 当前专利权人地址： DE Leverkusen
- 代理商 Robert S. Klemz; Noland J. Cheung
- 优先权： DE102004017005 20040402
- 主分类号： C08G18/80
- IPC分类号： C08G18/80 ; C08G18/22 ; C08G18/42 ; C08G18/58
摘要：
The present invention relates to polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature. The powder coating compositions contain a hydroxyl functional binder component having a content of carboxyl groups of from 0.5 to 2.0 wt. %, a polyaddition compound, at least one zinc compound as a hardening catalyst, and a compound reactive to carboxyl groups.