KOSMETISCHER PUDER AUF SILICIUMDIOXID-BASIS UND HERSTELLUNGSVERFAHREN

KOSMETISCHER PUDER AUF SILICIUMDIOXID-BASIS UND HERSTELLUNGSVERFAHREN

Cosmetic powder comprises 1-9 wt.% finely divided hydrophobic silica with a BET surface area of 180-280 m 2>/g and an average particle size of 5-30 nm, 20-95 wt.% water and 0.1-20 wt.% of a hydrophilic humectant and has a silica:water ratio of 1:11-30. The powder contains no oil, water-soluble po...

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Bibliographische Detailangaben
Hauptverfasser: GOLZ-BERNER, KARIN, PORCU, MARYSE, BLEUEZ, LOIC
Format: Patent
Sprache:ger
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Beschreibung
Zusammenfassung:Cosmetic powder comprises 1-9 wt.% finely divided hydrophobic silica with a BET surface area of 180-280 m 2>/g and an average particle size of 5-30 nm, 20-95 wt.% water and 0.1-20 wt.% of a hydrophilic humectant and has a silica:water ratio of 1:11-30. The powder contains no oil, water-soluble polymers (polyvinylpyrrolidone, polyvinyl acetate, acrylic or urethane polymers) or hydrocolloids. An independent claim is also included for production of the powder by premixing the water with the humectant and other liquid ingredients, mixing the premix with the silica with a mechanical mixer at 1000-3000 rpm for 3-15 minutes, and adding powder ingredients to the product.