Aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles and method for producing the same
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United States of America Patent
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Sep 22, 2015
Grant Date -
Jun 7, 2012
app pub date -
Jul 23, 2010
filing date -
Aug 11, 2009
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Abstract
The present invention provides an aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles, a process for producing the same, and a product such as an anti-reflection film having a high refractive index layer. The present invention relates to an aggregate of spherical core-shell cerium oxide/polymer hybrid nanoparticles in which the core and shell are cerium oxide and a polymer, respectively, and the aggregate is highly concentrated, with a volume fraction of the spherical core-shell cerium oxide/polymer hybrid nanoparticles being at least 32% or higher, the aggregate contains a fixing agent, the aggregate is configured such that the fixing agent fills in voids between the spherical core-shell cerium oxide/polymer hybrid nanoparticles, the aggregate has a uniform distribution of the core-shell cerium oxide/polymer hybrid nanoparticles, which are spherical secondary particles synthesized by the polyol method, and the aggregate has excellent mechanical strength, light transmittance, and UV light-blocking properties; and the present invention further relates a process for producing the same; and an antireflection film and ink having the same.
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