Water-in-oil emulsion sunscreen cosmetic composition
AssigneeShiseido Company, Ltd.
InventorsHideto Ueda, Koji Abe, Akio Nasu
Life of this patent
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Abstract
To provide a low-viscosity water-in-oil emulsion sunscreen cosmetic composition which is extremely excellent in UV protective enhancing effect (as the protective boosting effect of the UV absorption capability thereof) over a broad UV radiation region and has superior feeling in use (smooth feeling, dry feeling, and non-sticky feeling, etc.). A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.01 to 10% by mass of a water-soluble polymer and (b) from 0.01 to 30% by mass of a UV absorbent, and having a viscosity of at most 10,000 mPa·s (as measured with a B-type viscometer at 30° C.), wherein the aqueous phase accounts for at most 45% by mass.
Claims11
A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.05 to 5% by mass of agar and/or succinoglycan and (b) from 0.01 to 30% by mass of an ultraviolet absorbent, and having a viscosity of at most 10,000 mPa·s (as measured with a B-type viscometer at 30° C.), wherein the aqueous phase accounts for at most 45% by mass, the aqueous phase is dispersed in an oil phase, and component (a) is incorporated in the dispersed aqueous phase.
A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.01 to 10% by mass of a water-soluble polymer selected from the group consisting of plant-derived water-soluble polymers and microorganism- water-soluble polymers and (b) from 0.01 to 30% by mass of an ultraviolet derived absorbent, and having a viscosity of at most 10,000 mPa·s (as measured with a B-type viscometer at 30° C.), wherein the aqueous phase accounts for at most 45% by mass, the aqueous phase is dispersed in an oil phase, and component (a) is incorporated in the dispersed aqueous phase.
Dependencies are inferred from the claim text.