Sprayable freshening product comprising suspended particles and methods of freshening the air or a surface with the same

• US 10,080,814 B2
• Filed: 07/27/2017
• Issued: 09/25/2018
• 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
• Primary Examiner(s): Wax, Robert A
• Assistant Examiner(s): AL-AWADI, DANAH J
• Application Number:
  US15/661,004
• Publication Number:
  US 20180028708A1
• Time in Patent Office: 425 Days
• Field of Search: None
• CPC Class Codes: A61K 8/00 Cosmetics or similar toiletry preparations
• 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: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00
• CPC Class Codes: B01J 13/00 Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons

Abstract

A method of freshening the air or a surface is provided. The method comprises the steps of: providing a freshening composition, the freshening composition comprising a plurality of particles and a structurant system; and spraying the freshening composition in the form of a plurality of spray droplets, wherein the plurality of spray droplets have: a normalized D(90) value of less than 2.5, when sprayed from a TS800 sprayer according to the SPRAY D(90) NORMALIZED AND SPRAY D(4,3) NORMALIZED TEST METHOD described herein, a residue value of less than about 8 at 5 sprays, according to the RESIDUE TEST METHOD described herein, and a phase stability grade of 1 or 2, according to the PHASE STABILITY GRADE AT 25° C. TEST METHOD described herein.

Claims

1. A method of freshening the air or a surface, the method comprising the steps of:

providing a freshening composition, the freshening composition comprising a plurality of particles and a structurant system, wherein the structurant system comprises a first polysaccharide and a second polysaccharide, wherein the first polysaccharide and the second polysaccharide are selected from the group consisting of;

xanthan gum, glucomannan, galactomannan, and combinations thereof, and wherein the total polysaccharide level of the composition is less than 0.1 wt. %, by weight of the composition; and

spraying the freshening composition in the form of a plurality of spray droplets, wherein the plurality of spray droplets have;

a normalized D(90) value of less than 2.5, when sprayed from a TS800 sprayer according to the SPRAY DROPLET SIZE TEST METHOD described herein,

a residue value of less than about 8 at 5 sprays, according to the RESIDUE VALUE TEST METHOD described herein, and

a phase stability grade of 1 or 2, according to the PHASE STABILITY GRADE AT 25°

C. TEST METHOD described herein.

2. The method of claim 1, wherein the plurality of spray droplets have a normalized D(90) value of less than 2.0.

3. The method of claim 1, wherein the plurality of spray droplets have a residue value of less than about 8 at 25 sprays.

4. The method of claim 1, wherein the plurality of spray droplets have a phase stability grade of 2.

5. The method of claim 1, wherein the particle is a benefit agent delivery particle.

6. The method of claim 5, wherein the benefit agent delivery particle comprises a polymer of acrylic acid or derivatives thereof.

7. The method of claim 1, wherein the structurant system comprises xanthan gum.

8. The method of claim 7, wherein the structurant system comprises konjac gum or locust bean gum.

9. The method of claim 1, wherein the composition comprises 85 wt. % to 99.5 wt. % of the aqueous carrier, by weight of the composition.

10. A freshening composition comprising:

a plurality of particles; and

a structurant system, wherein the structurant system comprises a first polysaccharide and a second polysaccharide, wherein the first polysaccharide and the second polysaccharide are selected from the group consisting of;

xanthan gum, glucomannan, galactomannan, and combinations thereof, and wherein the total polysaccharide level of the composition is less than 0.1 wt. %, by weight of the composition,

wherein the freshening composition has a phase stability grade of 1 or 2, according to the PHASE STABILITY GRADE AT 25°

C. TEST METHOD described herein, and

wherein the freshening composition, when sprayed from a TS800 sprayer according to the SPRAY DROPLET SIZE_TEST METHOD described herein, produces spray droplets having a normalized D(90) value of less than 2.5 and a residue value of less than about 8 at five sprays, according to the RESIDUE VALUE TEST METHOD described herein.

11. The composition of claim 10, wherein the plurality of spray droplets have a normalized D(90) value of less than 2.0.

12. The composition of claim 10, wherein the plurality of spray droplets have a residue value of less than about 8 at 25 sprays.

13. The composition of claim 10, wherein the plurality of spray droplets have a phase stability grade of 2.

14. The composition of claim 10, wherein the particle is a benefit agent delivery particle.

15. The composition of claim 14, wherein the benefit agent delivery particle comprises a polymer of acrylic acid or derivatives thereof.

16. The composition of claim 10, wherein the structurant system comprises xanthan gum.

17. The composition of claim 16, wherein the structurant system comprises konjac gum or locust bean gum.

18. The composition of claim 10, wherein the composition comprises 85 wt. % to 99.5 wt. % of the aqueous carrier, by weight of the composition.