Ultraviolet shielding agent composition comprising cerium oxide particles having surface modified with polyhydroxystearic acid
AssigneeSoulbrain Co., Ltd.
InventorsJeong Ho LEE, Seok Joo KIM
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Abstract
Disclosed are a sunscreen composition containing cerium oxide (CeO2) particles having surfaces modified with polyhydroxystearic acid and a method for preparing the sunscreen composition. The sunscreen composition containing cerium oxide (CeO2) particles having surfaces modified with polyhydroxystearic acid exhibits excellent dispersion stability even after a long period of time elapses.
Claims13
A sunscreen composition comprising cerium oxide (CeO2) particles having surfaces modified with substituted or unsubstituted polyhydroxystearic acid.
A method for preparing cerium oxide particles having surfaces modified with polyhydroxystearic acid, the method comprising:
- mixing polyhydroxystearic acid and a solvent to prepare a mixed solution;
- and
- mixing the mixed solution with cerium oxide particles and performing milling to prepare cerium oxide particles having surfaces modified with polyhydroxystearic acid.
Dependencies are inferred from the claim text.