OIL-IN-WATER EMULSION COSMETIC

The purpose of the present invention is to provide an oil-in-water emulsion cosmetic that is thickened using an associative thickener containing a hydrophobic modified polyether urethane, that stably holds a hydrophobization powder in an inner oil phase, and that does not release water even after lo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TASHIRO, Mayuri, NAGARE, Yuko
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The purpose of the present invention is to provide an oil-in-water emulsion cosmetic that is thickened using an associative thickener containing a hydrophobic modified polyether urethane, that stably holds a hydrophobization powder in an inner oil phase, and that does not release water even after long-term storage, without a reduction in usage sensations regarding moistness, resilience, and smoothness originally possessed by the oil-in-water emulsion cosmetic. The present invention is an oil-in-water emulsion cosmetic characterized by comprising (A) a hydrophobic modified polyether urethane having a specific structure such as polyurethane-59, (B) a polyether modified silicone having an HLB (Si) of 5-14, and (C) a hydrophobization powder. The cosmetic according to the present invention preferably further comprises (D) a lower alcohol and/or a polyol, and/or (E) a nonionic surfactant having an HLB of 8-18. The hydrophobization powder (C) is preferably a metal oxide powder treated with triethoxycaprylylsilane, dimethicone, hydrogen dimethicone, or a metallic soap.