Water-in-oil-type emulsified sunscreen cosmetic
AssigneeKao Corporation
InventorJia Shi
Life of this patent
Estimating the term…
Abstract
A water-in-oil emulsified sunscreen cosmetic including the following components (A1), (A2), (B), and (C), with a content of (D) a non-volatile silicone oil being 0.1 mass % or more and 4 mass % or less, (A1) 5 mass % or more of a hydrophobized titanium dioxide fine particle, (A2) 10 mass % or more of a hydrophobized zinc oxide fine particle, (B) a divalent polyol, and (C) 2 mass % or more and 14 mass % or less of a non-volatile hydrocarbon oil, wherein each mass % is with respect to 100 mass % of the water-in-oil emulsified sunscreen cosmetic.
Claims19
A water-in-oil emulsified sunscreen cosmetic comprising the following components (A1), (A2), (B), (C), (D), and (J):
- (A1) 5 mass % or more of a hydrophobized titanium dioxide fine particle;
- (A2) 10 mass % or more of a hydrophobized zinc oxide fine particle;
- (B) a divalent polyol;
- (C) from 2 mass % to 14 mass % of a non-volatile hydrocarbon oil;
- (D) from 0.1 mass % to 3 mass % in total of at least one non-volatile silicone oil selected from the group consisting of dimethylpolysiloxane, methyl phenyl polysiloxane, methyl hydrogen polysiloxane, and tetramethyltetrahydrogenpolysiloxane;
- and
- (J) from 0.2 to 5 mass % of a dextrin fatty acid ester,
- wherein each mass % is with respect to 100 mass % of the water-in-oil emulsified sunscreen cosmetic,
- wherein the mass ratio of the component (D) to the component (C), [(D)/(C)], is from 0.05 to 0.14, and
- wherein the water-in-oil emulsified sunscreen cosmetic does not comprise a non-volatile silicone oil other than component (D).
A water-in-oil emulsified sunscreen cosmetic comprising the following components (A1), (A2), (B), (C), (D), and (J):
- (A1) 5 mass % or more of a hydrophobized titanium dioxide fine particle;
- (A2) 10 mass % or more of a hydrophobized zinc oxide fine particle;
- (B) a divalent polyol;
- (C) from 2 mass % to 14 mass % of a non-volatile hydrocarbon oil;
- (D) from 0.1 mass % to 3 mass % of a non-volatile silicone oil;
- and
- (J) from 0.2 to 5 mass % of a dextrin fatty acid ester,
- wherein a content of an ultraviolet absorber is 0 mass %,
- wherein each mass % is with respect to 100 mass % of the water-in-oil emulsified sunscreen cosmetic, and
- wherein the water-in-oil emulsified sunscreen cosmetic does not comprise a polyether-modified silicone.
Dependencies are inferred from the claim text.