Benefit agent containing delivery particle

• US 20070202063A1
• Filed: 02/15/2007
• Published: 08/30/2007
• Est. Priority Date: 02/28/2006
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Sands, Peggy, Guinebretiere, Sandra, Dihora, Jiten, Fossum, Renae, York, David, Lang, Matthew
• Application Number:
  US11/706,675
• Publication Number:
  US 20070202063A1
• Time in Patent Office: Days
• US Class Current: 424/70.100
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/84 obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: B01J 13/02 Making microcapsules or microballoons for medical preparations A61K9/50
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 3/505 encapsulated or adsorbed on a carrier, e.g. zeolite or clay

Abstract

The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, there by allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.

Claims

1. A composition comprising a particle comprising a core material and a wall material that surrounds the core material, said particle having a Delivery Index of at least about 0.05 said composition being a consumer product.

2. The composition of claim 1, said composition having a Delivery Index of at least 7.

3. The composition of claim 1, said composition having a Delivery Index of at least 70.

4. The composition of claim 1, wherein said particle'"'"'s core material comprises a material selected from the group consisting of perfume, silicone oils, waxes, hydrocarbons, higher fatty acids, essential oils, lipids, skin coolants, vitamins, sunscreens, antioxidants, glycerine, catalysts, bleach particles, silicon dioxide particles, malodor reducing agents, dyes, brighteners, antibacterial actives, antiperspirant actives, cationic polymers and mixtures thereof.

5. The composition of claim 1 wherein said particle'"'"'s wall material comprises a material selected from the group consisting of polyamine, polyurea, polyurethane polysaccharides and modified polysaccharides, gel forming proteins, modified celluloses, carboxylic acid containing acrylic polymers, gelatin, gum arabic, urea crosslinked with formaldehyde, urea crosslinked with gluteraldehyde, melamine crosslinked with formaldehyde, chitin and chitosan and modified chitin and modified chitosan, sodium alginate, latexes, silicon dioxide, sodium silicates and mixtures thereof.

6. The composition of claim 1 wherein said particle comprises at least 1 weight % of a benefit agent.

7. The composition of claim 6 wherein said particle comprises from about 20 to about 95 weight % of a benefit agent.

8. The composition of claim 7 wherein said particle comprises from about 50 to about 90 weight % of a benefit agent.

9. The composition of claim 8 wherein said particle comprises from about 80 to about 85 weight % of a benefit agent.

10. The composition of claim 1 wherein said particle'"'"'s core material comprises, based on total core material weight, at least about 20 wt % benefit agent.

11. The composition of claim 6 wherein said benefit agent comprises a perfume composition, said particle comprising, based on total particle weight, from about 20 weight % to about 95 weight % of said perfume composition.

12. The composition of claim 11, wherein said perfume composition comprises a Quadrant III perfume raw material.

13. The composition of claim 1 said composition comprising, based on total composition weight, from about 0.2 to about 10 weight % of said particle.

14. The composition of claim 1, comprising a material selected from the group consisting of calcium formate, formic acid, polyamines and mixtures thereof.

15. A method of treating and/or cleaning a situs, said method comprising

a.) optionally washing and/or rinsing said situs;

b.) contacting said situs with a composition according to claim 1;

and

c.) optionally washing and/or rinsing said situs.

16. A situs treated with a composition according to claim 1.

18. A composition according to claims 1, said composition comprising a formaldehyde scavenger.

17. A method of improving the stability of a microcapsule slurry, comprising combining said microcapsule slurry with a material selected from the group consisting of calcium formate, formic acid and mixtures thereof, said material comprising, based on total slurry weight from about 0.6 wt. % to about 3 wt. % of said microcapsule slurry.