Oil-in-water-type emulsion cosmetic
AssigneeShiseido Company, Ltd.
InventorsAyako Ibe, Yuji Matsushita
Life of this patent
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Abstract
The present invention provides an oil-in-water emulsion cosmetic that is excellent in the resilient and supple (in other words, firm, tensional, and elastic) feel and also excellent in the softness and moisturizing effect. The oil-in-water emulsion cosmetic of the present invention is characterized by comprising the following components: (A) 0.1 to 5 mass % of hydrogenated polyisobutene with a number average molecular weight of 2000 to 3000, (B) 0.1 to less than 1 mass % of higher alcohol, (C) 1 to 25 mass % of an oil component, (D) 0.3 to 5 mass % of surfactant, (E) 0.05 to 5 mass % of water-soluble thickener, and (F) an aqueous component, wherein the blending quantity of nonpolar oil is 30% or lower of the total amount of component (C).
Claims11
An oil-in-water emulsion cosmetic consisting of the following components:
- (A) 0.1 to 5 mass % of hydrogenated polyisobutene with a number average molecular weight of 2000 to 3000 with respect to a total amount of the cosmetic,
- (B) 0.1 to 0.8 mass % of higher alcohol having 16 to 22 carbon atoms with respect to the total amount of the cosmetic,
- (C) 1 to 25 mass % of an oil component including nonpolar oil with respect to the total amount of the cosmetic,
- (D) 0.3 to 5 mass % of surfactant with respect to the total amount of the cosmetic,
- (E) 0.05 to 5 mass % of water-soluble thickener with respect to the total amount of the cosmetic, the water-soluble thickener being one or more selected from a group consisting of carboxyvinyl polymer, xanthan gum, methyl cellulose, dimethylacrylamide/sodium acryloyldimethyltaurine crosspolymer, sodium polyacrylate/sodium acryloyl dimethyl taurine copolymer and ammonium acryloyldimethyltaurine/VP copolymer, and
- (F) an aqueous component,
- wherein a blending quantity of the nonpolar oil is more than 0 mass % and 30 mass % or lower of the total amount of component (C).
An oil-in-water emulsion cosmetic consisting of the following components:
- (A) 0.1 to 5 mass % of hydrogenated polyisobutene with a number average molecular weight of 2000 to 3000 with respect to a total amount of the cosmetic,
- (B) 0.1 to 0.8 mass % of higher alcohol having 16 to 22 carbon atoms with respect to the total amount of the cosmetic,
- (C) 1 to 25 mass % of an oil component including non-polar oil with respect to the total amount of the cosmetic,
- (D) 0.3 to 5 mass % of surfactant with respect to the total amount of the cosmetic,
- (E) 0.05 to 5 mass % of water-soluble thickener with respect to the total amount of the cosmetic, the water-soluble thickener being one or more selected from a group consisting of carboxyvinyl polymer, xanthan gum, methyl cellulose, dimethylacrylamide/sodium acryloyldimethyltaurine crosspolymer, sodium polyacrylate/sodium acryloyl dimethyl taurine copolymer and ammonium acryloyldimethyltaurine/VP copolymer, and
- (F) at least one aqueous component selected from the group consisting of water, a moisturizer, a sequestering agent, an antioxidant, a water-soluble UV absorber, and a water-soluble drug,
- wherein a blending quantity of the nonpolar oil is more than 0 mass % and 30 mass % or lower of the total amount of component (C).
An oil-in-water emulsion cosmetic consisting of the following components:
- (A) 0.1 to 5 mass % of hydrogenated polyisobutene with a number average molecular weight of 2000 to 3000 with respect to a total amount of the cosmetic,
- (B) 0.1 to 0.8 mass % of higher alcohol having 16 to 22 carbon atoms with respect to the total amount of the cosmetic,
- (C) 1 to 25 mass % of an oil component including nonpolar oil with respect to the total amount of the cosmetic,
- (D) 0.3 to 5 mass % of surfactant with respect to the total amount of the cosmetic,
- (E) 0.05 to 5 mass % of water-soluble thickener with respect to the total amount of the cosmetic, the water-soluble thickener being one or more selected from a group consisting of carboxyvinyl polymer, xanthan gum, methyl cellulose, (dimethylacrylamide/sodium acryloyldimethyltaurine) crosspolymer, sodium polyacrylate/sodium acryloyl dimethyl taurine copolymer and (ammonium acryloyldimethyltaurine/VP) copolymer,
- (F) water and at least one selected from the group consisting of a moisturizer, a sequestering agent, an antioxidant, a water-soluble UV absorber, and a water-soluble drug, and
- (G) fine-particle titanium oxide or fine-particle zinc oxide,
- wherein a blending quantity of nonpolar oil is more than 0 mass % and 30 mass % or lower of the total amount of component (C).
Dependencies are inferred from the claim text.