PURPOSE: To improve the emulsion stability and dispersion stability in a wide temp. range and to enhance the safety for the skin by incorporating the fine powder of an org. polymer having 0.01W1μm mean particle diameter to prepare the title oil-in-water type emulsion composition.
CONSTITUTION: The fine powder having 0.01W1μm mean particle diameter of an org. polymer such as polymethyl methacrylate alkyl ester, polystyrene, a polystyrene derivative, and polyacrylonitrile is incorporated to prepare the oil-in-water type emulsion composition. The content of the org. polymer in the oil-in-water type emulsion composition is adjusted to 0.1W10wt%, or preferably to 0.5W5wt%. The oil used in food, paint, medicines, cosmetics, etc., can be generally used as the oil to be used in the oil-in-water type emulsion composition, and paraffin oil, hydrocarbons such as squalene, natural vegetable oil such as olive oil and soybean oil, etc., can be exemplified.
HARUSAWA FUMINORI
ONO KAZUHISA
NAGAI ISAO
| JPS4743739A | ||||
| JPS57107234A | 1982-07-03 | |||
| JPS60262828A | 1985-12-26 | |||
| JPS57205497A | 1982-12-16 |