Powder coating composition having high weather resistance
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United States of America Patent
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Mar 16, 2004
Grant Date -
N/A
app pub date -
Jul 2, 2001
filing date -
Oct 4, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A powder coating composition which comprises (A) a fluorine-containing copolymer having a crosslinkable reactive group and (B) a curing agent being capable of forming crosslinkage by reacting with the crosslinkable reactive group of the fluorine-containing copolymer in a weight ratio (A)/(B) of 40/60 to 98/2, and contains rutile titanium oxide and other pigment. The powder coating composition can form a coating film which can exhibit excellent weather resistance even under very strict environment specified in AAMA 2605 standard, etc., and is suitable particularly for an exterior member for building, for example, an aluminum sash.
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