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US 2021/0267850 A1Published application
Powder compositions having reduced fragility
AssigneeL'oreal
InventorsLisa A. VOORHEES-NORDHAUS, Hubert Tunchiao LAM, Cristina DUBCEAC
Life of this patent
Estimating the term…
Abstract
Pressed powder compositions are provided. The compositions include at least about 80% by weight of a mineral portion. The mineral portion comprises at least one alkylsilane-coated mineral; polyhydroxystearic acid, synthetic mica, and less than about 12% by weight of binding agents. Methods of shadowing the eyes and methods of forming pressed powder compositions are also provided.
Claims15
A pressed powder composition, comprising:
- at least about 80% by weight of a mineral portion wherein the mineral portion comprises at least one alkylsilane-coated mineral and a synthetic mica;
- polyhydroxystearic acid;
- less than about 12% by weight of binding agents.
A pressed powder composition, comprising:
- at least about 80% by weight of a mineral portion wherein the mineral portion comprises at least one triethoxycaprylylsilane-coated mineral having a substrate selected from a group consisting of iron oxide, titanium dioxide, talc, and combinations thereof;
- polyhydroxystearic acid;
- less than about 12% by weight of binding agents selected from a group consisting of fatty compounds, water, fatty acid salts, and glycols, wherein the pressed powder composition comprises at least about 11% of a combined weight percentage of minerals having substrates selected from titanium dioxide and iron oxide.
A method of forming a pressed powder composition, wherein the method comprises:
- adding polyhydroxystearic acid to a powder portion wherein the powder portion comprises at least one mineral coated with alkylsilane to form a powder-binder composition;
- mechanically pressing the powder-binder composition without previously heating the powder-binder composition to a temperature of at least 50° C.
Dependencies are inferred from the claim text.