Polyurethane powder coatings
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United States of America Patent
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Apr 11, 1995
Grant Date -
N/A
app pub date -
Aug 8, 1994
filing date -
Aug 8, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to thermosetting powder coatings formulated with a polyisocyanate and a blend of a hydroxylated polyester resin having a low hydroxyl number and a hydroxylated resin based on tris(hydroxyethyl)isocyanurate having a high hydroxyl number. Powder coatings from this blend exhibit high hardness and good caking stability.
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