# US 9,751,097 B2 · Topical spray composition to benefit skin

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- Number: US 9,751,097 B2
- Document ID: US9751097B2
- Status: Granted
- Kind: B2
- Application number: 14/478,470
- Filed: 2014-09-05
- Published: 2014-12-25
- Granted: 2017-09-05
- Earliest claimed: 2012-04-27
- Assignees: Conopco, Inc.
- Applicants: Conopco, Inc.
- Inventors: Thomas Nikolaos Morikis; Kathleen Lynn Melo; Gee-Young Ng
- Web page: https://patentgrep.com/patent/US9751097B2

## CPC

- B05B 1/3405: {to produce swirl}
- A61K 8/046: {Aerosols; Foams}
- A61K 8/37: Esters of carboxylic acids
- A61K 8/375: {the alcohol moiety containing more than one hydroxy group}
- A61K 8/39: Derivatives containing from 2 to 10 oxyalkylene groups
- A61K 8/86: Polyethers
- A61K 8/9789: Magnoliopsida [dicotyledons]
- A61K 8/9794: Liliopsida [monocotyledons]
- A61Q 19/00: Preparations for care of the skin
- B05B 1/3426: {the channels emerging in the swirl chamber perpendicularly to the outlet axis (B05B1/3436 takes precedence)}
- B05B 11/0037: {Containers (for several components B05B11/0078)}
- B65D 83/62: by membranes, bags or the like
- A61K 2800/10: General cosmetic use
- A61K 2800/87: Application Devices; Containers; Packaging
- A61Q 19/04: for chemically tanning the skin (topical sun or radiation screening or tanning preparations A61Q17/04)
- A61Q 19/08: Anti-ageing preparations
- B05B 11/0038: {Inner container disposed in an outer shell or outer casing}
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- 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
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

A topical spray composition and a system for containing and applying the composition is described. The composition has liquid emulsifiers that unexpectedly result in a superior product suitable to be applied homogeneously.

## Claims

### Claim 1

A system comprising:
a) a package with a headspace of 30 to 55% based on volume of the package and capable of being pressurized to 5.2 to 10.7 bar;
b) an exit insert, the exit insert having at least one channel, a swirl chamber and an orifice; and
c) a composition comprising:
i) a liquid emulsifier, the liquid emulsifier having an HLB from 3.0 to 7.0; and
iii) a skin benefit agent, the composition is sprayable from the system at a spray rate of 0.8 to 2 g per second, has a viscosity from 500 to 4200 cps and a surface tension from 22 to 33 mN/m
wherein the swirl chamber has a diameter, D, from 0.5 mm to 2.0 mm, the orifice has a diameter, d, from 0.15 mm to 0.4 mm, and the at least one channel has a length from 3.0 to 9 times larger than the orifice diameter, and a width from 0.7 to 5 times longer than the orifice diameter and further wherein the ratio of the orifice diameter to the swirl chamber diameter (d/D) is less than 0.45.

### Claim 2 (depends on 1)

The system according to claim 1 wherein the liquid emulsifier comprises a non-polymeric, polyhydroxylated fatty acid, a polymeric, polyhydroxylated fatty acid, or both.

### Claim 3 (depends on 1)

The system according to claim 1 wherein the ratio (d/D) is from 0.25 to 0.4.

### Claim 4 (depends on 1)

The system according to claim 1 wherein the composition is sprayable from the system at a spray rate of 1 to 1.6 g per second.

### Claim 5 (depends on 1)

The system according to claim 1 wherein the composition is sprayable from the system in a homogeneous spray pattern.

### Claim 6 (depends on 1)

The system according to claim 1 wherein the composition is sprayable from the system in a pattern of about 2.5 to 10 cm in width.

### Claim 7 (depends on 1)

The system according to claim 1 wherein the orifice has a diameter from about 0.2 to about 0.35 mm.

### Claim 8 (depends on 1)

The system according to claim 1 wherein the swirl chamber has a diameter from about 0.6 to about 1.7 mm.

### Claim 9 (depends on 1)

The system according to claim 1 wherein the emulsifier in the composition consists essentially of liquid emulsifier.

### Claim 10 (depends on 1)

The system according to claim 1 wherein the composition is an oil-in-water emulsion comprising from about 70% to about 98% water.

### Claim 11 (depends on 1)

The system according to claim 1 wherein the composition comprises from about 0.5% to about 12% by weight oil.

### Claim 12 (depends on 1)

The system according to claim 1 wherein the composition comprises less than 0.5% by weight non-liquid emulsifier.

### Claim 13 (depends on 1)

The system according to claim 1 wherein the composition comprises less than 0.45% by weight surfactant.

### Claim 14 (depends on 1)

The system according to claim 1 wherein the composition is capable of producing a spray pattern in the absence of sputtering when sprayed.