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Silica-Coated Cosmetic

November 14, 2005

Patent No. US 6,534,044 B1: Showa Denko K.K., Tokyo, Japan, earned a patent for a cosmetic comprising silica-coated metal oxide particles coated with a hydrophobicizing agent. The silica-coated metal oxide particles have an infrared absorption spectrum between 1150-1250 cm-1 and 1000-1100 cm-1.

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