Phase-stable, sprayable freshening compositions comprising suspended particles

• US 10,143,764 B2
• Filed: 07/27/2017
• Issued: 12/04/2018
• Est. Priority Date: 08/01/2016
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Lynch, Matthew Lawrence, Colina, Carla Jean, Horenziak, Steven Anthony, Illie, Brandon Philip, Gizaw, Yonas, Sun, Yiping
• Primary Examiner(s): Wax, Robert A
• Assistant Examiner(s): AL-AWADI, DANAH J
• Application Number:
  US15/660,997
• Publication Number:
  US 20180028706A1
• Time in Patent Office: 495 Days
• Field of Search: None
• CPC Class Codes: A01N 25/10 Macromolecular compounds
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/012 characterised by being in a special form, e.g. gels, emulsions A61L9/048 takes precedence
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes
• CPC Class Codes: B01J 13/02 Making microcapsules or microballoons for medical preparations A61K9/50
• CPC Class Codes: C11B 9/00 Essential oils; Perfumes

Abstract

A freshening composition is provided. The composition includes at least one particle, and an aqueous carrier. The composition includes a polysaccharide system having a first polysaccharide and a second polysaccharide. The first polysaccharide is xanthan gum and the second polysaccharide is selected from the group consisting of konjac gum, locust bean gum, and combinations thereof. The composition may include an unencapsulated perfume.

Claims

1. A sprayable product comprising a spray dispenser and a freshening composition disposed in the spray dispenser, the freshening composition comprising:

a plurality of particles;

a polysaccharide system comprising a first polysaccharide and a second polysaccharide, wherein the first polysaccharide is xanthan gum, and wherein the second polysaccharide is selected from the group consisting of konjac gum, locust bean gum, and combinations thereof, wherein the total polysaccharide level of the composition is less than 0.1 wt. %, by weight of the composition; and

an aqueous carrier.

2. The composition of claim 1, wherein the first polysaccharide is present at a level of greater than 10 wt. % and less than 90 wt. %, by weight of the polysaccharide system.

3. The composition of claim 1, wherein the polysaccharide system has a weight-average molecular weight in the range of about 10,000 Daltons to about 15,000,000 Daltons.

4. The composition of claim 1, wherein the plurality of particles comprises a plurality of benefit agent delivery particles having a benefit agent and a wall material encapsulating the benefit agent.

5. The composition of claim 4, wherein the wall material of the plurality of benefit agent delivery particles comprises one or more cationic, nonionic and/or anionic coatings.

6. The composition of claim 4, wherein the wall material of the plurality of benefit agent delivery particles comprises a material selected from the group consisting of:

a polymer of acrylic acid or derivatives thereof, melamine formaldehyde, polyurea, and mixtures thereof.

7. The composition of claim 4, wherein the composition comprises from about 0.001 wt. % to about 2.0 wt. % of the benefit agent, by weight of the composition.

8. The composition of claim 4, wherein the benefit agent comprises a material selected from the group consisting of:

a perfume mixture, a malodor counteractant, an antimicrobial agent, an insect repellant, and combinations thereof.

9. The composition of claim 4, wherein the plurality of benefit agent delivery particles have an average longest projected dimension of about 0.1 μ

m to about 500 μ

m.

10. The composition of claim 1 further comprising a surface tension reducing agent, wherein the surface tension reducing agent is selected from the group consisting of:

quaternary ammonium compounds, non-ionic surfactants, anionic surfactants, silicon compounds, and combinations thereof.

11. The composition of claim 1 further comprising a malodor counteractant, wherein the malodor counteractant is selected from the group consisting of:

polyols, cyclodextrin and derivatives thereof, amine functional polymers, aldehydes, and combinations thereof.

12. The composition of claim 1 further comprising an antimicrobial agent selected from the group consisting of quaternary ammonium compounds, benzoisothiazolinone compounds, and combinations thereof.

13. The composition of claim 1, wherein the composition comprises from about 0.015% to about 1.0% of unencapsulated perfume, by weight of the composition.

14. The composition of claim 1, wherein the composition has an ionic strength of less than about 0.02 mol/L.

15. The composition of claim 1, wherein the polysaccharide system has an average ratio of acetylation of about 2.0 to about 0.5.

21. A method of freshening comprising the step of spraying the composition of claim 15 onto a surface or into the air.

22. The composition of claim 1, wherein the aqueous carrier is present at about 85 wt. % to 99.5 wt. %, by weight of the composition.

23. The composition of claim 1, wherein the second polysaccharide is konjac gum.

16. A sprayable freshening composition, the freshening composition comprising:

a plurality of particles;

a polysaccharide system comprising a first polysaccharide and a second polysaccharide, wherein the first polysaccharide is xanthan gum, and wherein the second polysaccharide is selected from the group consisting of glucomannan gum, galactomannan, and combinations thereof; and

an aqueous carrier,

wherein the first polysaccharide is present at a level of greater than 10 wt. % and less than 90 wt. %, by weight of the polysaccharide system, wherein the total polysaccharide level of the composition is by weight of the composition, wherein the freshening composition is capable of being dispensed from a spray dispenser.

17. The composition of claim 16, first polysaccharide is present at a level of about 40 wt. % to about 60 wt. %, by weight of the polysaccharide system.

18. The composition of claim 16, wherein the particle comprises a benefit agent delivery particle having a benefit agent and a wall material encapsulating the benefit agent.

19. The composition of claim 18, wherein the wall material of the benefit agent delivery particle comprises a material selected from the group consisting of:

a polymer of acrylic acid or derivatives thereof, melamine formaldehyde, polyurea, and mixtures thereof.

20. The composition of claim 18, wherein the benefit agent of the benefit agent delivery particle comprises a material selected from the group consisting of:

a perfume mixture, a malodor counteractant, an antimicrobial agent, an insect repellant, and combinations thereof.