Fluid composition and a microfluidic delivery cartridge comprising the same

• US 10,149,917 B2
• Filed: 11/22/2016
• Issued: 12/11/2018
• Est. Priority Date: 11/22/2016
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Webb, Kim Lynn, Gruenbacher, Dana Paul, Horenziak, Steven Anthony, Mahoney, William Paul
• Primary Examiner(s): Reuther, Arrie L
• Application Number:
  US15/358,171
• Publication Number:
  US 20180140733A1
• Time in Patent Office: 749 Days
• CPC Class Codes: A61L 2209/133 Replaceable cartridges, refills
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/03 Apparatus therefor
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes
• CPC Class Codes: B05B 1/24 incorporating means for heating the liquid or other fluent material, e.g. electrically

Abstract

A cartridge having a microfluidic die and a fluid composition in fluid communication with the microfluidic die is provided. The fluid composition includes from about 50% to about 100%, by weight of the fluid composition, of a perfume mixture, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.9; a polyol; and from about 0.25 wt. % to about 9.5 wt. %, by weight of the fluid composition, of water.

Claims

1. A cartridge comprising a microfluidic die and a fluid composition in fluid communication with the microfluidic die, the fluid composition comprising:

about 50 wt. % to about 100 wt. % of a perfume mixture, by weight of the overall composition, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.9;

an oxygenated solvent selected from the group consisting of;

a polyol, glycol ether, polyether, or combination thereof; and

about 0.25 wt. % to about 9.5 wt. % water, by weight of overall composition.

2. The cartridge of claim 1, wherein the mol-weighted average boiling point of the perfume mixture is less than 250°

C.

3. The cartridge of claim 1, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.5.

4. The cartridge of claim 1 comprising about 0.25 wt. % to about 7.0 wt. % water, by weight of the overall composition.

5. The cartridge of claim 1, wherein the fluid composition is substantially free of suspended solids.

6. The cartridge of claim 1, wherein the oxygenated solvent is a polyol.

7. The cartridge of claim 6, wherein the oxygenated solvent is a glycol ether.

8. The cartridge of claim 1, wherein the oxygenated solvent is present at a level of about 0.01 wt. % to about 20 wt. %, by weight of the overall composition.

9. The cartridge of claim 1, wherein the microfluidic die comprises a heater.

10. A microfluidic delivery system comprising a housing and a cartridge that is connectable with the housing, wherein the cartridge comprises a reservoir for containing a fluid composition, a microfluidic die, and a fluid transport member configured to deliver the fluid composition from the reservoir to the microfluidic die, wherein the fluid composition comprises:

about 50 wt. % to about 100 wt. % of a perfume mixture, by weight of the overall composition, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.9;

an oxygenated solvent selected from the group consisting of;

a polyol, glycol ether, polyether, or combination thereof; and

about 0.25 wt. % to about 9.5 wt. % water, by weight of overall composition.

11. The microfluidic delivery system of claim 10, wherein the mol-weighted average boiling point of the perfume mixture is less than 250°

C.

12. The microfluidic delivery system of claim 10, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.5.

13. The microfluidic delivery system of claim 10 comprising about 0.25 wt. % to about 7.0 wt. % water, by weight of the overall composition.

14. The microfluidic delivery system of claim 10, wherein the oxygenated solvent is a polyol.

15. The microfluidic delivery system of claim 10, wherein the oxygenated solvent is present at a level of about 0.01 wt. % to about 20 wt. %, by weight of the overall composition.

16. A method of dispensing a fluid composition from a microfluidic die, the method comprising the steps of:

comprising a housing and a cartridge that is connectable with the housing, wherein the cartridge comprises a reservoir, a fluid transport member, a fluid composition, and a microfluidic die, the fluid composition comprising;

about 50% to about 100%, by weight of the fluid composition, of a perfume mixture, wherein the perfume mixture has an average C log P of less than about 2.9;

an oxygenated solvent selected from the group consisting of;

a polyol, glycol ether, polyether, or combination thereof; and

about 0.25 wt. % to about 7 wt. %, by weight of the fluid composition, of water.

17. The method of claim 16, wherein the mol-weighted average boiling point of the perfume mixture is less than 250°

C.

18. The method of claim 16, wherein the perfume mixture has a mol-weighted average C log P of less than or equal to about 2.5.

19. The method of claim 16 comprising about 0.25 wt. % to about 7.0 wt. % water, by weight of the overall composition.

20. The method of claim 16, wherein the oxygenated solvent is present at a level of about 0.01 wt. % to about 20 wt. %, by weight of the overall composition.