Manufacturing method of core-shell-type ceria-polymer hybrid nanoparticles and dispersion sols of them
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United States of America Patent
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Sep 30, 2014
Grant Date -
Aug 19, 2010
app pub date -
Dec 23, 2009
filing date -
Dec 26, 2008
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Abstract
The invention provides a method for manufacturing spherical, monodispersed core-shell type ceria-polymer hybrid nanoparticles including, a mixing step in which a cerium salt and a polymer are mixed together in a high-boiling-point organic solvent to obtain a mixture, and a heating and reflux step in which this mixture is heated and refluxed at a temperature of 110° C. or more to thereby generate a boiling phenomenon in the heating and reflux step, and rapidly cooling the mixture after the heating and reflux step to precipitate cerium oxide, and a liquid dispersion thereof.
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