Topical spray composition to benefit skin

Patent metadata

Field	Value
Publication number	US-9751097-B2
Application number	US-201414478470-A
Country	US
Kind code	B2
Filing date	Sep 5, 2014
Priority date	Apr 27, 2012
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

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.

First claim

What is claimed is:

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.

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

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

4. 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.

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

6. 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.

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

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

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

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

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

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

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

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

Assignees

• Conopco Inc

Inventors

• Morikis Thomas Nikolaos
• Melo Kathleen Lynn
• Ng Gee-Young

Classifications

• A61K2800/87

  Application Devices; Containers; Packaging · CPC title

• A61K8/39

  Derivatives containing from 2 to 10 oxyalkylene groups · CPC title

• B65D83/62

  by membranes, bags or the like · CPC title

• A61K8/375

  the alcohol moiety containing more than one hydroxy group · CPC title

• A61K2800/10

  General cosmetic use · CPC title