Oily composition and process for producing the same
AssigneeThe Nisshin Oil Mills, Ltd.
InventorsSatoshi Sakurada, Hisako Yoshino
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Abstract
An oily composition comprises a solid phase containing a water-soluble effective substance and/or a water-dispersible effective substance and an oil phase containing an oily component and an emulsifying agent having an HLB value of not more than 10, wherein the solid phase is dispersed in the oil phase in the form of a fine particulate state having an average particle size of not more than 5 μm and the water content or the aqueous alcohol solution content of the solid phase is not more than 30% by weight.
Claims16
An oily composition comprising a solid phase containing an effective substance soluble in water and/or in an aqueous alcohol solution and an oil phase containing an oily component and an emulsifying agent having an HLB value of not more than 10, wherein the solid phase is dispersed in the oil phase in the form of a fine particulate state having an average particle size of not more than 5 μm and the water content or the aqueous alcohol solution content of the solid phase is not more than 20% by weight.
An oily composition comprising a solid phase containing an effective substance soluble in water and/or in an aqueous alcohol solution and a film-forming agent in an amount ranging from 1 to 2000 parts by weight per 100 parts by weight of the effective substance;
- and an oil phase containing an oily component and an emulsifying agent having an HLB value of not more than 10, wherein the solid phase is dispersed in the oil phase in the form of a fine particulate state having an average particle size of not more than 5 μm and the water content of the solid phase is not more than 20% by weight.
A method for preparing an oily composition comprising a solid phase containing an effective substance soluble in water and/or in an aqueous alcohol solution and an oil phase containing an oily component and an emulsifying agent having an HLB value of not more than 10, wherein the solid phase is dispersed in the oil phase in the form of a fine particulate state having an average particle size of not more than 5 μm and the water content or the aqueous alcohol solution content of the solid phase is not more than 20% by weight, the method comprising the steps of emulsifying an aqueous phase containing an effective substance soluble in water and/or in an aqueous alcohol solution, a water-soluble film-forming agent and water or an aqueous alcohol solution with an oil phase containing an oily component and an emulsifying agent to form a W/O type emulsion and then drying the W/O type emulsion.
Dependencies are inferred from the claim text.