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

Patent metadata

Field	Value
Publication number	US-10080814-B2
Application number	US-201715661004-A
Country	US
Kind code	B2
Filing date	Jul 27, 2017
Priority date	Aug 1, 2016
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Procter & Gamble

Inventors

• Lynch Matthew Lawrence
• Colina Carla Jean
• Horenziak Steven Anthony
• Illie Brandon Philip
• Gizaw Yonas

Classifications

• A61L2/22

  Phase substances, e.g. smokes or aerosols · CPC title

• A61L9/14 Primary

  using sprayed or atomised substances {including air-liquid contact processes} · CPC title

• B01J13/00

  Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons · CPC title

• A61K8/00

  Cosmetics or similar toiletry preparations · CPC title

• A61L9/012 Primary

  characterised by being in a special form, e.g. gels, emulsions {(A61L9/048 takes precedence)} · CPC title