ALUMINIUM SHOT FOR THIN, PLATE-SHAPED EFFECT PIGMENTS, METHOD FOR THE PRODUCTION THEREOF, AND USE OF SAME
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United States of America Patent
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Issued Date -
Feb 25, 2010
app pub date -
Dec 21, 2007
filing date -
Dec 22, 2006
priority date (Note) -
Abandoned
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Abstract
The invention relates to an atomized aluminum powder for thin, platelet-shaped effect pigments having a narrow relative breadth of the thickness distribution. The powder of the invention is characterized by a particle size band of d.sub.10=0.15 to 3.0 .mu.m and d.sub.50=0.8 to 5.0 .mu.m and also d.sub.90=2.0 to 8.0 .mu.m. The subject matter of the invention relates additionally to a method of producing the atomized aluminum powder of the invention, and to the use of the atomized aluminum powder of the invention as a laser marking agent or laser weldability agent for plastics. The subject matter of the invention relates additionally to the use of the fine atomized aluminum powder for producing ultrathin aluminum pigments by wet milling.
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