Powder coatings based on branched oligoesters and triazole blocked polyisocyanates
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United States of America Patent
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Jun 19, 2001
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app pub date -
Sep 18, 1998
filing date -
Sep 18, 1998
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Abstract
The present invention relates to powder coating compositions which can be cured at low temperatures. The powder coating compositions of the invention include a unique combination of a branched oligoester polyol and triazole blocked isocyanate cross-linking agent which when cured results in a coating binder with desirable hardness, flexibility, solvent resistance, corrosion resistance, weatherability and gloss.
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