Antiperspirant spray devices and compositions

Patent metadata

Field	Value
Publication number	US-10787283-B2
Application number	US-201414307462-A
Country	US
Kind code	B2
Filing date	Jun 17, 2014
Priority date	Jul 16, 2013
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A method for filling a hand held spray device is disclosed. The spray device has a body with a reservoir. The method includes mixing a non-volatile silicone fluid, an antiperspirant active, at least one liquid activation enhancer and a first portion of an organoclay material to form a first composition, wherein the liquid activation enhancer has 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 mixing a liquid fragrance material and a second portion of an organoclay material to form a second composition. The method further includes filling the reservoir by either mixing the first composition and the second composition to form an antiperspirant composition and adding the antiperspirant composition to the reservoir or by filling the reservoir with the first composition and thereafter filling the reservoir with the second composition 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.

First claim

What is claimed is:

1. A method for filling a hand held spray device comprising:
providing a body with a reservoir having a total fill of materials;
mixing 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, at least one liquid and a first portion of an organoclay material to form a first composition, wherein the liquid 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 the liquid having the formula (I): R 1 —X—R 2
wherein R 1 contains from about 8 to about 20 carbon atoms, X is selected from the group consisting of an alcohol, ester, amide and aryl group, and R 2 is selected from the group consisting of null, H, 1 to 4 carbon atoms, and C 6 H 5 ;
mixing a liquid fragrance material and a second portion of an organoclay material to form a second composition;
filling the reservoir by either mixing the first composition and the second composition to form an antiperspirant composition or by filling the reservoir with the first composition and thereafter filling the reservoir with the second composition after the reservoir is filled with the first composition, to form an antiperspirant composition;
providing a valve and attaching the valve to the body; and
filling the reservoir with a propellant having a concentration of from about 30% to about 90% by weight of the total fill of materials; and
wherein the liquid fragrance material has a concentration from about 4% to about 10% 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 at about 25° C.

2. The method according to claim 1 , wherein the liquid is selected from the group consisting of isopropyl myristate, isopropyl palmitate, ethyl stearate, methyl stearate, propyl stearate, butyl stearate, ethyl myristate, ethyl palmitate, butyl palmitate, propyl stearate, propyl palmitate, methyl stearamide, ethyl stearamide, isopropyl stearamide, ethyl palmitamide propyl palmitamide, stearyl benzoate, palmityl benzoate, C12-15 alkyl benzoate, palmityl acetate and combinations thereof.

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

4. The method 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.

5. 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.

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

7. The method according to claim 6 , wherein the liquid fragrance material has a concentration from about 4% to about 8% by weight of the antiperspirant composition.

8. The method according to claim 1 , wherein the non-volatile silicone fluid has a concentration from about 30% to about 50% by weight of the antiperspirant composition and 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 has 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 1 , 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 liquid is C12-15 alkyl benzoate and the non-volatile silicone fluid comprises a polymethylsiloxane fluid.

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 according to claim 1 , wherein the liquid has a concentration from about 2% to about 30% by weight of the antiperspirant composition.

16. The method according to claim 1 , wherein the non-volatile silicone fluid comprises a polymethylsiloxane fluid with a concentration from about 30% to about 50% by weight of the antiperspirant composition and wherein the liquid activation enhancer 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 first composition further comprises a clay activator, wherein the liquid fragrance material has a concentration 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 about 1 Pas to about 50 Pas.

20. The method according to claim 1 , wherein the propellant has a concentration from 30% to 70% by weight of the total fill of materials.

21. The method according to claim 1 , wherein the propellant has a concentration from 72% to 90% by weight of the total fill of materials.

22. The method according to claim 1 , wherein the first portion of the organoclay material comprises greater than 50% of the total orgranoclay material added to the reservoir.

23. The method according to claim 22 , wherein the first portion of the organoclay material comprises greater than 80% of the total amount of the organoclay material added to the reservoir.

24. A method for filling a hand held spray device comprising:
providing a body with a reservoir having a total fill of materials;
mixing 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, at least one liquid and a first portion of an organoclay material to form a first composition, wherein the liquid 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 the liquid having the formula (I): R 1 —X—R 2
wherein R 1 contains from about 8 to about 20 carbon atoms, X is selected from the group consisting of an alcohol, ester, amide and aryl group, and R 2 is selected from the group consisting of null, H, 1 to 4 carbon atoms, and C 6 H 5 ; and wherein the non-volatile silicone fluid is selected from the group consisting of ethyl stearate, methyl stearate, propyl stearate, butyl stearate, ethyl myristate, ethyl palmitate, butyl palmitate, propyl stearate, propy

Assignees

• Procter & Gamble

Inventors

• Menon Elton Luis
• Swaile David Frederick

Classifications

• A61K8/37 Primary

  Esters of carboxylic acids · CPC title

• A61K8/891

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

• A61K2800/87

  Application Devices; Containers; Packaging · CPC title

• A61K8/046

  Aerosols; Foams · CPC title

• A61K8/0241

  Containing particulates characterized by their shape and/or structure (see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes) · CPC title