# US 11,433,018 B2 · Non-greasy personal care compositions

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- Number: US 11,433,018 B2
- Document ID: US11433018B2
- Status: Granted
- Kind: B2
- Application number: 16/590,681
- Filed: 2019-10-02
- Published: 2020-01-30
- Granted: 2022-09-06
- Earliest claimed: 2014-09-23
- Assignees: Colgate-Palmolive Company
- Applicants: Colgate-Palmolive Company
- Inventors: Ewelina Lesniak; Kathy Potechin; Lauren Decina
- Web page: https://patentgrep.com/patent/US11433018B2

## CPC

- A61K 8/927: {of insects, e.g. shellac}
- A61K 8/0229: {Sticks}
- A61K 8/27: Zinc; Compounds thereof
- A61K 8/34: Alcohols
- A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain}
- A61K 8/37: Esters of carboxylic acids
- A61K 8/92: Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K 8/922: {of vegetable origin}
- A61K 8/9789: Magnoliopsida [dicotyledons]
- 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
- A61K 2800/31: Anhydrous
- 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 anhydrous personal care composition, comprising: (a) 45 to 60 weight % of at least one ester, selected from (i) triglycerides, (ii) diglycerides, (iii) monoglycerides, (iv) monoesters of diols, and (v) diesters of diols; (b) a first wax having a melting point of from 35° C. to 72° C. present in an amount of 5 to 25 weight %; (c) a second wax having a melting point of 73 to 90° C. present in an amount of 0.5 to 15 weight %; and (d) at least one plant oil having a saponification value of from 150 to 275 mg KOH/g present in an amount of 5 to 35 weight.

## Claims

### Claim 1

An anhydrous personal care composition selected from a sunscreen or a diaper cream, comprising:
(a) at least one ester, wherein said at least one ester is selected from one or more of the following groups:
(i) triglycerides,
(ii) diglycerides,
(iii) monoglycerides,
(iv) monoesters of diols, and
(v) diesters of diols,
and wherein a total concentration of said at least one ester is 45 to 60 weight %, based on the total weight of the composition;
(b) a first wax having a melting point of 35° C. to 72° C. present in an amount of 5 to 25 weight %, based on the total weight of the composition;
(c) a second wax having a melting point of 73° C. to 90° C. present in an amount of 0.5 to 15 weight % based on the total weight of the composition;
(d) at least one plant oil having a saponification value of 150 to 275 mg KOH/g, wherein a total concentration of said at least one plant oil is from 5 to 35 weight %, based on the total weight of the composition; and
(e) zinc oxide, which is present in a concentration of 11 to 15 weight % for the diaper cream or 15 to 22 weight % for the sunscreen, based on the total weight of the composition.

### Claim 2 (depends on 1)

The composition of claim 1, which is a stick that comprises
a. 46 to 56% by weight of the ester,
b. 8 to 19% by weight of the first wax,
c. 3 to 15% by weight of the second wax, and
d. 5 to 12% of the plant oil.

### Claim 3 (depends on 1)

The composition of claim 1, which is a stick that comprises
a. 47 to 53% by weight of the ester,
b. 11 to 16% by weight of the first wax,
c. 6 to 10% by weight of the second wax, and
d. 6 to 11% of the plant oil.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the second wax comprises sunflower seed wax.

### Claim 5 (depends on 4)

The composition of claim 4, wherein the second wax further comprises hydrogenated castor oil.

### Claim 6 (depends on 5)

The composition of claim 5, wherein a weight ratio of sunflower seed wax to hydrogenated castor oil is 1.5 to 1.8 or about 1.67.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the ester comprises caprylic/capric triglyceride, the first wax comprises beeswax, and the plant oil comprises sunflower seed oil.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the stick has a melt temperature of 52 to 65° C.

### Claim 9 (depends on 8)

The composition of claim 8, wherein the stick has a melt temperature of 59 to 63° C. or 61 to 62° C.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the stick has a hardness of 300 to 550 g.

### Claim 11 (depends on 10)

The composition of claim 10, wherein the stick has a hardness of 400 to 500 g.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the composition is a sunscreen.

### Claim 13 (depends on 12)

The composition of claim 12, wherein the composition comprises a sun-protective level of zinc oxide particles.

### Claim 14 (depends on 1)

The composition of claim 1, wherein the composition is a diaper cream.

### Claim 15 (depends on 1)

The composition of claim 1 wherein elements (a), (b), (c), and (d) of claim 1 are separate components which are combined to provide the composition.

### Claim 16 (depends on 1)

The composition of claim 1 which is substantially homogenous at room temperature and which does not undergo separation when stored at a temperature of 49° C. for 13 weeks.

### Claim 17 (depends on 1)

A method of making the stick of claim 1 comprising:
a. combining the ester, the first wax, the second wax, and the plant oil,
b. heating the ester, the first wax, the second wax, and the plant oil to a temperature at or above a melting point of all of the ester, the first wax, the second wax, and the plant oil,
c. mixing the ester, the first wax, the second wax, and the plant oil with the zinc oxide to form a mixture, and
d. filling the mixture into a container, wherein a temperature of the mixture is 55 to 70° C.

### Claim 18 (depends on 17)

The method of claim 17, wherein the temperature of the mixture at filling is 65 to 70° C.

### Claim 19 (depends on 12)

A method of reducing the risk of sun damage to the skin comprising applying a composition according to claim 12 to the skin.
