Oil-in-water type cosmetic composition

Patent metadata

Field	Value
Publication number	US-11213463-B2
Application number	US-201615206639-A
Country	US
Kind code	B2
Filing date	Jul 11, 2016
Priority date	Jul 9, 2015
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

An oil-in-water type emulsified cosmetic and a method of making can be prepared in a system not containing a silicone and is surprisingly produced without a wet-type dispersion apparatus by using a specific combination of the oil component constituting the oily phase and a hydrophobizing agent for a hydrophobized powder. The composition includes an aqueous phase; an oily phase dispersed in the aqueous phase; and a powder dispersed in the oily phase. The oily phase comprises (a) volatile hydrocarbon oil and (b) non-volatile hydrocarbon oil in a combined amount of 40% by mass or more with respect to the total oil content, wherein the blending ratio of (b) non-volatile hydrocarbon oil to (a) volatile hydrocarbon oil, [(b)/(a)], is within a range of 0 to 2.5, and the powder comprises a powder having a surface hydrophobized by a treatment with a metallic soap consisting of a higher fatty acid and a divalent metal or a composite treatment with a higher fatty acid and a divalent metal hydroxide.

First claim

What is claimed is:

1. An oil-in-water type emulsified cosmetic composition, comprising:
an aqueous phase;
1 to 40% by mass of an oily phase dispersed in the aqueous phase; and
a powder dispersed in the oily phase;

wherein the oily phase comprises:
(a) volatile hydrocarbon oil and
(b) non-volatile hydrocarbon oil

in a combined amount of 40% by mass or more with respect to the total oil content;
wherein the blending ratio of said (b) non-volatile hydrocarbon oil to said (a) volatile hydrocarbon oil, [(b)/(a)], is within the range of 0.10 to 2.5; and
wherein the powder has a surface hydrophobized by a treatment with a metallic soap consisting of a higher fatty acid and a divalent metal, or by a composite treatment with a higher fatty acid and a divalent metal hydroxide.

2. The cosmetic composition according to claim 1 , further comprising:
a thickener in the aqueous phase.

3. The cosmetic composition according to claim 2 , wherein:
the thickener is one or more selected from the group consisting of succinoglycan, xanthan gum, carrageenan, gellan gum, starch, hydroxyalkylcellulose, pullulan, carbomer, (Na/Mg) silicate, bentonite, acrylamide copolymer, sodium acryloyl dimethyl taurine/hydroxyethyl acrylate copolymer, agar, polyurethane, and hydrophobic polyether polyurethane.

4. The cosmetic composition according to claim 1 , wherein:
the powder is one or more selected from the group consisting of: titanium dioxide, iron oxide and zinc oxide.

5. The cosmetic composition according to claim 4 , wherein:
the powder is a pigment grade powder.

6. The cosmetic composition according to claim 1 , wherein:
the higher fatty acid is a C8 to C24 fatty acid, and the divalent metal is magnesium.

7. The cosmetic composition according to claim 6 , wherein:
the higher fatty acid is a C12 to C22 linear or branched carboxylic acid.

8. The cosmetic composition, according to claim 1 , wherein:
said composition is absent a silicone oil.

9. The cosmetic composition, according to claim 5 , wherein:
the composition further comprises: a microparticle powder selected from the group consisting of titanium dioxide microparticles, iron oxide microparticles and zinc oxide microparticles.

10. An oil-in-water type emulsified cosmetic composition, comprising:
an aqueous phase;
10 to 40% by mass of an oily phase dispersed in the aqueous phase; and
a powder dispersed in the oily phase;

wherein the oily phase does not include a silicone oil and further comprises:
(a) volatile hydrocarbon oil and
(b) non-volatile hydrocarbon oil

in a combined amount of 40% by mass or more with respect to the total oil content; and
wherein the blending ratio of (b) non-volatile hydrocarbon oil to (a) volatile hydrocarbon oil, [(b)/(a)], is within the range of 0.10 to 2.5; and
wherein the powder has a surface hydrophobized by a treatment with a metallic soap consisting of a higher fatty acid and a divalent metal, or by a composite treatment with a higher fatty acid and a divalent metal hydroxide.

11. The cosmetic composition, according to claim 10 , wherein:
the powder comprises: a pigment-grade powder selected from the group consisting of titanium dioxide, iron oxide and zinc oxide; and
the composition further comprises a microparticle powder selected from the group consisting of titanium dioxide microparticles, iron oxide microparticles and zinc oxide microparticles.

12. An oil-in-water type emulsified cosmetic composition comprising:
an aqueous phase;
1 to 40% by mass of an oily phase dispersed in the aqueous phase; and
a powder dispersed in the oily phase;

wherein the oily phase comprises:
(a) volatile hydrocarbon oil and
(b) non-volatile hydrocarbon oil

in a combined amount of 40% by mass or more with respect to the total oil content, and does not include a silicone oil; wherein the blending ratio of (b) non-volatile hydrocarbon oil to (a) volatile hydrocarbon oil, [(b)/(a)], is within the range of 0.10 to 2.5; and
wherein:
the powder has a surface hydrophobized by a treatment with a metallic soap consisting of a higher fatty acid and a divalent metal, or by a composite treatment with a higher fatty acid and a divalent metal hydroxide;
the powder comprises a pigment-grade powder selected from the group consisting of titanium dioxide, iron oxide and zinc oxide; and
the composition further comprises a microparticle powder selected from the group consisting of titanium dioxide microparticles, iron oxide microparticles and zinc oxide microparticles.

13. The cosmetic composition according to claim 1 , wherein:
(a) the volatile hydrocarbon oil is selected from the group consisting of light isoparaffin, isododecane and isohexadecane; and
(b) the non-volatile hydrocarbon oil is selected from the group consisting of squalane, hydrogenated polydecene and petrolatum.

14. The cosmetic composition according to claim 10 , wherein:
(a) the volatile hydrocarbon oil is selected from the group consisting of light isoparaffin, isododecane and isohexadecane; and
(b) the non-volatile hydrocarbon oil is selected from the group consisting of squalane, hydrogenated polydecene and petrolatum.

15. The cosmetic composition according to claim 12 , wherein:
(a) the volatile hydrocarbon oil is selected from the group consisting of light isoparaffin, isododecane and isohexadecane; and
(b) the non-volatile hydrocarbon oil is selected from the group consisting of squalane, hydrogenated polydecene and petrolatum.

Assignees

• Shiseido Co Ltd

Inventors

• Kubota Shun
• Hata Hideo
• Concina Malyn
• Lou Michelle
• Takahashi Hideki
• Shown Julie
• Ikebe Yosuke

Classifications

• A61K2800/612

  By organic compounds · CPC title

• A61K2800/5922

  At least two compounds being classified in the same subclass of A61K8/18 · CPC title

• A61K8/0241

  Containing particulates characterized by their shape and/or structure (see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes) · CPC title

• A61Q17/04

  Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title

• A61K8/361

  Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof · CPC title