Antiperspirant spray devices and compositions

Patent metadata

Field	Value
Publication number	US-10766646-B2
Application number	US-201414307457-A
Country	US
Kind code	B2
Filing date	Jun 18, 2014
Priority date	Jul 16, 2013
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

A method of filling a hand held spray device is disclosed. The spray device includes a body having a reservoir. The method includes filling the reservoir with a first composition having a non-volatile silicone fluid, an antiperspirant active, an organoclay material, and at least one liquid activation enhancer having a Hansen Solubility Parameter for Hydrogen Bonding, δh between about 2 and about 6 and a light transmittance value greater than 90%. The method further includes filling the reservoir with a liquid fragrance material after the reservoir is filled with the first composition to form an antiperspirant composition, attaching a valve to the body; and filling the reservoir with a propellant, wherein the hand held spray device has a propellant concentration after filling from about 30% to about 90% by weight of the total fill of materials within the reservoir and the non-volatile silicone fluid has a concentration from about 30% to about 70% by weight of the antiperspirant composition.

First claim

What is claimed is:

1. A method of filling a hand held spray device comprising:
providing a body having a reservoir comprising a total fill of materials;
filling the reservoir with a first composition comprising a non-volatile silicone fluid comprising an average viscosity from about 3×10 −6 m 2 /s to about 350×10 −6 m 2 /s, an antiperspirant active, an organoclay material, and at least one liquid that has a Hansen Solubility Parameter for Hydrogen Bonding, δ h , between about 2 and about 6 and a light transmittance value greater than 90% and wherein the at least one liquid comprises a combination of a first liquid selected from the group consisting of ethyl stearate, propyl stearate, butyl stearate, ethyl myristate, isopropyl myristate, ethyl palmitate, isopropyl palmitate, butyl palmitate, and combinations thereof and a second liquid that is selected from the group consisting of stearyl benzoate, palmityl benzoate, C12-15 alkyl benzoate, and combinations thereof;
filling the reservoir with a second composition comprising a liquid fragrance material after the reservoir is filled with the first composition;
wherein the first composition and the second composition form an antiperspirant composition comprising from about 2% to about 30% by weight of the antiperspirant composition, of the liquid, from about 30% to about 50% by weight of the antiperspirant composition, of non-volatile silicone fluid; and from about 4% to about 10% by weight of the antiperspirant composition, of liquid fragrance material;
providing a valve and attaching the valve to the body; and
filling the reservoir with a propellant wherein mixing of the first composition and the second composition is provided by the introduction of the propellant into the reservoir;
wherein the hand held spray device has a propellant concentration after filling from about 30% to about 90% by weight of the total fill of materials within the reservoir; and wherein the first composition further comprises a silicone gum having a concentration of 0.3% to 1.2% by weight of the antiperspirant composition; and wherein the viscosity of the antiperspirant composition is from about 2,000 centipoise to about 50,000 centipoise.

2. The method according to claim 1 , wherein the first liquid is selected from the group consisting of isopropyl myristate, isopropyl palmitate, butyl stearate and combinations thereof, and the second liquid is C12-15 alkyl benzoate.

3. The hand held spray device according to claim 1 , wherein the organoclay material is selected from the group consisting of stearalkonium bentonite, disteardimonium hectorite, quaternium 90-bentonite, and combinations thereof.

4. The method according to claim 1 , wherein the first composition further comprises a clay activator selected from the group consisting of propylene carbonate, triethyl citrate, methanol, ethanol, acetone, water and combinations thereof.

5. The method according to claim 3 , wherein the organoclay material has a concentration from about 1% to about 8% by weight of the antiperspirant composition.

6. The method of claim 1 , wherein the non-volatile silicone fluid comprises an average viscosity from about 50×10 −6 m 2 /s to about 350×10 −6 m 2 /s.

7. The method of claim 1 , wherein the non-volatile silicone fluid comprises an average viscosity from about 100×10 −6 m 2 /s to about 350×10 −6 m 2 /s.

8. The method according to claim 1 , wherein the non-volatile silicone fluid has a viscosity at the time of making from about 5×10 −6 m 2 /s to about 350×10 −6 m 2 /s.

9. The method according to claim 8 , wherein the non-volatile silicone fluid had a viscosity at the time of making from about 5×10 −6 m 2 /s to about 100×10 −6 m 2 /s.

10. The method according to claim 8 , wherein the non-volatile silicone fluid comprises a polydimethylsiloxane fluid having had an average molecular weight from about 500 to about 13,700 at the time of making.

11. The method according to claim 10 , wherein the polymethylsiloxane fluid has the formula (II):
M—D x—M

wherein M is (CH 3 ) 3 SiO, D is ((CH 3 ) 2 SiO) and X is from about 4 to about 183.

12. The method according to claim 1 , wherein the antiperspirant composition is substantially free of a volatile silicone fluid.

13. The method according to claim 1 , wherein the second liquid is C12-15 alkyl benzoate and the non-volatile silicone fluid comprises a polymethylsiloxane fluid having had a viscosity less than 20 centistokes at the time of making.

14. The method according to claim 1 , wherein the antiperspirant composition is substantially free of mineral oil, isohexadecane, PPG-14 butyl ether and octyldodecanol.

15. The method of claim 7 , wherein the first liquid is isopropyl myristate.

16. The method according to claim 1 , wherein the non-volatile silicone fluid comprises a polymethylsiloxane fluid having a viscosity of about 50×10 −6 m 2 /s, wherein the first liquid is isopropyl myristate having a concentration from about 2% to about 10% by weight of the antiperspirant composition and wherein the liquid fragrance material has a concentration from about 4% to about 6% by weight of the antiperspirant composition.

17. The method according to claim 1 , wherein the concentration of the liquid fragrance material by weight of the antiperspirant composition is greater than the concentration of the organoclay material.

18. The method according to claim 1 , wherein the concentration of the liquid fragrance material by weight of the antiperspirant composition that is greater than the concentration of the clay activator.

19. The method according to claim 1 , wherein the antiperspirant composition has a viscosity from 1 Pa·s to about 50 Pa·s.

Assignees

• Procter & Gamble

Inventors

• Menon Elton Luis
• Swaile David Frederick

Classifications

• A61K8/37 Primary

  Esters of carboxylic acids · CPC title

• B65D83/58

  with separate inlets for contents and propellant feeding into a duct upstream of the dispensing valve (with contents and propellant separated B65D83/60) · CPC title

• B65D83/141

  specially adapted for specific contents or propellants · CPC title

• B65D83/44

  Valves specially adapted for the discharge of contents; Regulating devices (pressure relief devices B65D83/70) · CPC title

• A61K8/891

  saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone · CPC title