Powder primer of thermosetting binder and PVdF-compatible thermoplastic
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United States of America Patent
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Aug 3, 1999
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N/A
app pub date -
Jul 21, 1994
filing date -
Jun 21, 1990
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Abstract
Powder compositions comprising about 5-15 wt % of PVdF-compatible thermoplastic resin, about 50-90 wt % of a thermosetting binder system, about 0-35 wt % of pigments and about 0-3 wt % of leveling agent are disclosed which are particularly suitable for use as primers with a later application of a pigmented PVdF-based top coating. Preferred compositions are based on an epoxy system containing about 8 wt % of PVdF or acrylic thermoplastic resin, 5-25 wt % of pigments and 0.7-1 wt % of leveling agent.
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