Powder clearcoat and process for the production of a multicoat finish
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United States of America Patent
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Jan 5, 1999
Grant Date -
N/A
app pub date -
May 22, 1995
filing date -
Nov 3, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a process for the production of a multicoat finish, in which a pigmented basecoat is applied, dried and coated over with a powder clearcoat, and subsequently basecoat and powder clearcoat are stoved together. The invention is characterized in that the powder clearcoat employed has a particle size distribution in which a) no more than 15% by weight of the powder clearcoat particles have a particle size smaller than 10 .mu.m; b) for at least 40% by weight of the powder clearcoat particles the common logarithm of the quotient of the largest and the smallest particle size is less than or equal to 0.25; and c) at least 98% by weight of the powder clearcoat particles have a particle size smaller than 100 .mu.m.
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