# US 2013/0156831 A1 · Thickening Composition And Cosmetic Preparation Containing The Same

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- Number: US 2013/0156831 A1
- Document ID: US20130156831A1
- Status: Published application
- Kind: A1
- Application number: 13/695,022
- Filed: 2011-04-27
- Published: 2013-06-20
- Earliest claimed: 2010-04-28
- Assignees: Shiseido Company, Ltd.
- Inventors: Ayano Matsuo; Masayuki Shirao
- Web page: https://patentgrep.com/patent/US20130156831A1

## CPC

- A61K 47/34: Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers (A61K47/10 takes precedence)
- A61K 8/042: {Gels}
- A61K 8/65: Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
- A61K 8/73: Polysaccharides
- A61K 8/733: {Alginic acid; Salts thereof}
- A61K 8/737: {Galactomannans, e.g. guar; Derivatives thereof}
- A61K 8/87: Polyurethanes
- A61K 47/36: Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61Q 1/00: Make-up preparations; Body powders; Preparations for removing make-up
- A61Q 5/06: Preparations for styling the hair, e.g. by temporary shaping or colouring
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- A61Q 19/00: Preparations for care of the skin
- C08G 18/2835: {having less than 5 ether groups}
- C08G 18/4833: {Polyethers containing oxyethylene units}
- C08G 18/4845: {containing oxypropylene or higher oxyalkylene end groups}
- C08G 18/73: acyclic
- C08L 5/00: Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L 5/04: Alginic acid; Derivatives thereof
- C08L 5/12: {Agar or} agar-agar {, i.e. mixture of agarose and agaropectin}; Derivatives thereof
- C08L 89/06: derived from leather or skin {, e.g. gelatin}
- A61K 2800/10: General cosmetic use
- C08K 3/22: of metals
- C08K 5/0008: {Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59}
- C08L 75/08: from polyethers
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

To provide a thickening composition which exhibits excellent feelings in use, namely, exhibits excellent freshness, non-stickiness and blend into skin feeling, and does not leave any residue on skin, which can stably keep the viscosity thereof in a low to moderate-level viscosity range and which, even when a salt-type ingredient is incorporated therein, does not undergo viscosity change, and also a cosmetic preparation containing the composition. A thickening composition which comprises (a) from 0.1 to 2% by mass of a specific hydrophobic denatured polyether urethane (associative thickener) and (b) from 0.1 to 2% by mass of a microgel to be obtained by grinding a gel of a hydrophilic compound having a gelling capability, in a ratio of component (a)/component (b) of from 0.1/0.9 to 0.9 to 0.1 (by mass), and which has a viscosity of from 50 to 50,000 mPa·s (with BL-type viscometer, 12 rotations, 25° C.); and a cosmetic preparation containing the thickening composition.

## Claims

### Claim 1

A thickening composition comprising:
(a) from 0.1 to 2% by mass of a hydrophobic denatured polyether urethane represented by the following formula (I),
wherein R1, R2 and R4 each independently represent an alkylene group having from 2 to 4 carbon atoms, or a phenylethylene group; R3 represents an alkylene group having from 1 to 10 carbon atoms and optionally having an urethane bond; R5 represents a linear, branched or secondary alkyl group having from 8 to 36 carbon atoms; m indicates a number of 2 or more; h indicates a number of 1 or more; k indicates a number of from 1 to 500; and n indicates a number of from 1 to 200; and
(b) from 0.1 to 2% by mass of a microgel to be obtained by grinding a gel of a hydrophilic compound having a gelling capability, in a ratio of component (a)/component (b) of from 0.1/0.9 to 0.9/0.1 (by mass), and which has a viscosity of from 50 to 50,000 mPa·s as measured with a BL-type viscometer operated at 12 rotations per minute and 25° C.

### Claim 2 (depends on 1)

The thickening composition as claimed in claim 1, wherein R1, R2 and R4 in the formula (I) each independently represent an alkylene group having from 2 to 4 carbon atoms, R3 represents an alkylene group having from 1 to 10 carbon atoms and optionally having an urethane bond, R5 represents a linear, branched or secondary alkyl group having from 12 to 24 carbon atoms, m is 2, h is 1, k is a number of from 100 to 300, and n is a number of from 10 to 100.

### Claim 3 (depends on 1)

The thickening composition as claimed in claim 1, wherein component (b) is a microgel having a mean particle size of from 0.1 to 1,000 μm, as prepared by grinding a gel formed by dissolving a hydrophilic compound having a gelling capability in water or in an aqueous component followed by keeping it cooled.

### Claim 4 (depends on 1)

The thickening composition as claimed in claim 1, wherein the hydrophilic compound having a gelling capability is one or more selected from among agar, carrageenan, curdlan, gelatin, gellan gum and alginic acid.

### Claim 5 (depends on 1)

The thickening composition as claimed in claim 1, which further contains one or more selected from among pharmaceutical ingredients and salts.

### Claim 6 (depends on 1)

A cosmetic preparation that contains the thickening composition of claim 1.

### Claim 7 (depends on 2)

The thickening composition as claimed in claim 2, wherein component (b) is a microgel having a mean particle size of from 0.1 to 1,000 μm, as prepared by grinding a gel formed by dissolving a hydrophilic compound having a gelling capability in water or in an aqueous component followed by keeping it cooled.

### Claim 8 (depends on 2)

The thickening composition as claimed in claim 2, wherein the hydrophilic compound having a gelling capability is one or more selected from among agar, carrageenan, curdlan, gelatin, gellan gum and alginic acid.

### Claim 9 (depends on 2)

The thickening composition as claimed in claim 2, which further contains one or more selected from among pharmaceutical ingredients and salts.

### Claim 10 (depends on 2)

A cosmetic preparation that contains the thickening composition of claim 2.

### Claim 11 (depends on 3)

The thickening composition as claimed in claim 3, wherein the hydrophilic compound having a gelling capability is one or more selected from among agar, carrageenan, curdlan, gelatin, gellan gum and alginic acid.

### Claim 12 (depends on 3)

The thickening composition as claimed in claim 3, which further contains one or more selected from among pharmaceutical ingredients and salts.

### Claim 13 (depends on 3)

A cosmetic preparation that contains the thickening composition of claim 3.

### Claim 14 (depends on 4)

The thickening composition as claimed in claim 4, which further contains one or more selected from among pharmaceutical ingredients and salts.

### Claim 15 (depends on 4)

A cosmetic preparation that contains the thickening composition of claim 4.

### Claim 16 (depends on 5)

A cosmetic preparation that contains the thickening composition of claim 5.