Invention Grant
US06770329B2 Low-yellowing aqueous clear powder coating dispersions, method of making the dispersions, and process for producing clearcoat finishes with the dispersions
失效
低黄变含水透明粉末涂料分散体，制备分散体的方法以及用分散体生产透明涂层的方法
- Patent Title: Low-yellowing aqueous clear powder coating dispersions, method of making the dispersions, and process for producing clearcoat finishes with the dispersions
- Patent Title (中): 低黄变含水透明粉末涂料分散体，制备分散体的方法以及用分散体生产透明涂层的方法
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Application No.: US10273189Application Date: 2002-10-17
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Publication No.: US06770329B2Publication Date: 2004-08-03
- Inventor: Günther Ott , Joachim Woltering , Wilfried Stübbe , Ulrike Röckrath , Maximilian Bendix , Ulrich Kalck , Jan Berg , Götz-Ekkehard Sapper
- Applicant: Günther Ott , Joachim Woltering , Wilfried Stübbe , Ulrike Röckrath , Maximilian Bendix , Ulrich Kalck , Jan Berg , Götz-Ekkehard Sapper
- Priority: DE199201412 19990503
- Main IPC: B05D138
- IPC: B05D138
Abstract:
The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.
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