Bright pigment, and bright coating composition and automotive body coating each containing the same
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United States of America Patent
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May 14, 2013
Grant Date -
Apr 8, 2010
app pub date -
Apr 28, 2008
filing date -
Apr 27, 2007
priority date (Note) -
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Abstract
The bright pigment of the present invention includes flaky particles and a metal oxide layer coating at least a part of the surface of each flaky particle. The bright pigment or the flaky particles of the present invention have a particle size distribution in which the particle size at 99% of the cumulative volume from the smaller particle size is 48 μm or less, and the maximum particle size is 62 μm or less. The flaky particles are made of a material having a refractive index in the range of 1.4 to 1.8. The flaky particles have a thickness distribution in which the frequency of the particles having a thickness in the range of 0.8 μm to 1.9 μm is 90% or more by volume, or the frequency of the particles having a thickness in the range of 0.01 μm to 0.35 μm is 90% or more by volume.
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