Ultraviolet screening agent for cosmetics and cosmetics using the same
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United States of America Patent
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Issued Date -
Jan 7, 2010
app pub date -
Sep 12, 2007
filing date -
Sep 15, 2006
priority date (Note) -
Abandoned
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Abstract
An ultraviolet screening agent for cosmetics, including polymer-coated metal oxide fine particles produced by coating, with silica as a first layer, the surface of each of at least one kind of metal oxide fine particles selected from the group consisting of zinc oxide fine particles, titanium oxide fine particles, cerium oxide fine particles, zirconium oxide fine particles, and iron oxide fine particles, a primary particle diameter of which fine particles is not smaller than 1 nm and not greater than 100 nm, and coating the outside of the first layer with a polymer as a second layer; and cosmetics using the ultraviolet screening agent.
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