05.12.23
US Patent No. 11,642,287 B2 (Lisa A. Voorhees-Nordhaus, Hubert Tunchiao Lam, Cristina Dubceac); L’Oréal, Paris, has patented a method of forming a pressed powder composition. Th method entails forming a powder-binder composition by adding polyhydroxystearic acid to a powder portion, wherein the powder portion comprises at least one mineral coated with alkylsilane, the at least one mineral free of a preformed polyhydroxystearic acid coating; and mechanically pressing the powder-binder composition without previously heating the powder-binder composition.