Patents

Shiseido Patents Sunblock Cosmetic

Author Image

By: TOM BRANNA

Editor

US Patent No. 8,642,018 B2; Shiseido Company, Ltd., Tokyo, has patented a water-in-oil emulsified sunscreen cosmetic that exhibits excellent long lasting coverage and ease of washability. It is comprised of hydrophobic zinc oxide powder (manufactured through a method in which a zinc oxide powder is dispersed in a solvent, and the surface of the zinc oxide powder is treated with a phosphate ester having a perfluoroalkyl); volatile silicone; caprylylmethicone; polyoxyalkylene-modified organopolysi...

Continue reading this story and get 24/7 access to Happi for FREE


Already a subscriber? Sign in

Keep Up With Our Content. Subscribe To Happi Newsletters