# US 8,771,373 B2 · Epilatory compositions

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- Number: US 8,771,373 B2
- Document ID: US8771373B2
- Status: Granted
- Kind: B2
- Application number: 11/597,071
- Filed: 2005-05-04
- Published: 2008-05-22
- Granted: 2014-07-08
- Earliest claimed: 2004-05-20
- Assignees: Reckitt Benckiser (UK) Limited
- Applicants: David Acher; Marielle De La Torre
- Inventors: David Acher; Marielle De La Torre
- Web page: https://patentgrep.com/patent/US8771373B2

## CPC

- A61K 8/31: Hydrocarbons
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/86: Polyethers
- A61K 8/922: {of vegetable origin}
- A61Q 9/04: Depilatories
- 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

## Abstract

An epilatory composition of the adhesive type comprises: a. from 50 to 90 percent by weight of a rosinous material or hydrocarbon resin; b. from 0.5 to 20 percent by weight of water, and c. an emulsifier and/or surfactant. The composition is particularly suitable for heating, prior to application to the skin, in a domestic microwave oven.

## Claims

### Claim 1

An epilatory composition of the adhesive type which comprises:
a. from 50 to 90 percent by weight of a rosinous material or hydrocarbon resin;
b. from 0.5 to 20 percent by weight of a hydroxy-group containing compound selected from water, glycerol, polyethylene glycol and mixtures thereof;
c. an emulsifier and/or surfactant;
d. a mixture of at least one natural wax and one synthetic wax; and
e. from 2 to 4.4 percent by weight of an elastomeric polymer that is vinyl ethylene-acetate copolymer.

### Claim 2 (depends on 1)

A composition according to claim 1 which comprises from 1 to 7 percent by weight of the hydroxy-group containing compound.

### Claim 3 (depends on 1)

A composition according to claim 1 wherein the hydroxy-group containing compound is water.

### Claim 4 (depends on 1)

A composition according to claim 1, which comprises from 0.2 to 16 percent by weight of the emulsifier and/or surfactant.

### Claim 5 (depends on 1)

A composition according to claim 1, which comprises from 5 to 40 percent by weight of wax.

### Claim 6 (depends on 1)

A microwaveable container comprising a composition as defined in claim 1.

### Claim 7 (depends on 1)

A method for removing hair from skin which comprises:
a. heating a composition as defined in claim 1;
b. applying said composition to the skin;
c. allowing said composition to set and hold said hair or applying a strip of material over said composition and allowing said strip to adhere thereto; and
d. removing said composition and hair by peeling said composition or said material and said composition, from the skin.

### Claim 8 (depends on 7)

A method according to claim 7 wherein said composition is heated by microwaves.

### Claim 9 (depends on 2)

The composition of claim 2, wherein the hydroxy-group containing compound is water.

### Claim 10 (depends on 2)

The composition of claim 2, comprising from about 0.2 to about 16 percent by weight of the emulsifier and/or surfactant.

### Claim 11 (depends on 3)

The composition of claim 3, comprising from about 0.2 to about 16 percent by weight of the emulsifier and/or surfactant.

### Claim 12

An epilatory composition of the adhesive type which comprises:
from 50 to 90 percent by weight of a rosinous material or hydrocarbon resin;
from 0.5 to 20 percent by weight of a hydroxy-group containing compound selected from water, glycerol, polyethylene glycol and mixtures thereof; and
an emulsifier and/or surfactant;
a mixture of at least one natural wax and one synthetic wax; and
from 2 to 4.4 percent by weight of an elastomeric polymer that is vinyl ethylene-acetate copolymer; and
wherein the composition comprises up to 40 percent by weight of wax.

### Claim 13

An epilatory composition of the adhesive type which comprises:
from 50 to 90 percent by weight of a rosinous material or hydrocarbon resin;
from 0.5 to 20 percent by weight of a hydroxy-group containing compound selected from water, glycerol, polyethylene glycol and mixtures thereof; and
an emulsifier and/or surfactant;
a mixture of at least one natural wax and one synthetic wax; and
from 2 to 4.4 percent by weight of an elastomeric polymer that is vinyl ethylene-acetate copolymer;
wherein the composition comprises up to 40 percent by weight of wax, and wherein the composition comprises from about 0.2 to about 16 percent by weight of the emulsifier and/or surfactant.