Invention Grant
- Patent Title: Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature
- Patent Title (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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Application No.: US11094589Application Date: 2005-03-30
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Publication No.: US07767778B2Publication Date: 2010-08-03
- Inventor: James Rawlins , Michael Grahl , Dorota Greszta-Franz , Hans-Josef Laas , Reinhard Halpaap
- Applicant: James Rawlins , Michael Grahl , Dorota Greszta-Franz , Hans-Josef Laas , Reinhard Halpaap
- Applicant Address: DE Leverkusen
- Assignee: Bayer MaterialScience AG
- Current Assignee: Bayer MaterialScience AG
- Current Assignee Address: DE Leverkusen
- Agent Robert S. Klemz; Noland J. Cheung
- Priority: DE102004017005 20040402
- Main IPC: C08G18/80
- IPC: C08G18/80 ; C08G18/22 ; C08G18/42 ; C08G18/58
Abstract:
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.
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