Malodor-controlling compositions comprising odor control agents and microcapsules containing an active material

• US 20030215417A1
• Filed: 04/02/2003
• Published: 11/20/2003
• Est. Priority Date: 04/18/2002
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Alonso, Mario, Cetti, Jonathan Robert, Uchiyama, Hirotaka, Cobb, Daniel Scott, Montezinos, David Lee
• Application Number:
  US10/405,455
• Publication Number:
  US 20030215417A1
• Time in Patent Office: Days
• US Class Current: 424/76.2
• CPC Class Codes: A61L 15/46 Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• CPC Class Codes: A61L 2209/22 Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning
• CPC Class Codes: A61L 2300/216 with other specific functional groups, e.g. aldehydes, ketones, phenols, quaternary phosphonium groups
• CPC Class Codes: A61L 2300/404 Biocides, antimicrobial agents, antiseptic agents
• CPC Class Codes: A61L 2300/622 Microcapsules
• CPC Class Codes: A61L 2300/802 Additives, excipients, e.g. cyclodextrins, fatty acids, surfactants
• 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 9/014 containing sorbent material, e.g. activated carbon
• CPC Class Codes: A61L 9/145 air-liquid contact processes, e.g. scrubbing
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 3/0068 Deodorant compositions
• CPC Class Codes: C11D 3/02 Inorganic compounds ; Elemental compounds
• CPC Class Codes: C11D 3/128 Aluminium silicates, e.g. zeolites C11D3/1253 takes precedence
• CPC Class Codes: C11D 3/2072 Aldehydes-ketones
• CPC Class Codes: C11D 3/2093 Esters; Carbonates
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/505 encapsulated or adsorbed on a carrier, e.g. zeolite or clay
• CPC Class Codes: D06M 11/00 Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising D06M10/00 takes precedence
• CPC Class Codes: D06M 11/74 with carbon or graphite; with carbides; with graphitic acids or their salts
• CPC Class Codes: D06M 11/79 : with silicon dioxide, silicic acids or their salts
• CPC Class Codes: D06M 13/005 : Compositions containing perfumes; Compositions containing deodorants
• CPC Class Codes: D06M 13/127 : Mono-aldehydes, e.g. formaldehyde; Monoketones
• CPC Class Codes: D06M 15/03 : Polysaccharides or derivatives thereof
• CPC Class Codes: D06M 23/06 : Processes in which the treating agent is dispersed in a gas, e.g. aerosols aerosol compositions C09K3/30
• CPC Class Codes: D06M 23/12 : Processes in which the treating agent is incorporated in microcapsules making microcapsules B01J13/02

Abstract

Malodor-controlling compositions comprise microcapsules containing an active material and/or an optional odor control agent, an odor control agent outside of the microcapsules, and an aqueous carrier. The active material is preferably a perfume and the composition provides a controlled-release scent, along with controlling malodor. Methods of reducing or removing malodor from a surface having malodor comprise the step of contacting the surface with a malodor-controlling composition comprising microcapsules containing an active material and an odor control agent.

Claims

1. A malodor-controlling composition comprising:

(a) microcapsules containing at least one of the following;

(i) an active material; and

(ii) an optional encapsulated odor control agent;

 

wherein said active material and said optional odor control agent may be contained in the same microcapsules;

in different microcapsules;

or both,

(b) an odor control agent outside of said microcapsules; and

(c) aqueous carrier.

2. The composition of claim 1 wherein said microcapsules comprise a material selected from the group consisting of urea-formaldehydes, melamineformaldehydes, phenolformaldehydes, gelatin, poly(vinyl alcohol), poly(vinyl pyrrolidone), polyacrylates, polyamides, polyurethane, polymethacrylates, polyepoxides, cellulose acetate, cellulose nitrate, cellulose acetate butyrate, ethyl cellulose polyester, polychlorotrifluoroethylene, ethyl/vinyl acetate, saran, polystyrene, zein, paraffin wax, animal wax, vegetable wax, microcrystalline wax, polyethylene wax, and mixtures thereof.

3. The composition of claim 1 wherein said microcapsules comprise a material selected from the group consisting of poly(oxymethyleneurea), poly(oxymethylenemelamine), gelatin, polyurethane, poly(vinyl alcohol), and mixtures thereof.

4. The composition of claim 1 wherein said microcapsules are present in said composition at a level of from about 0.001% to about 99.9% by weight of the composition.

5. The composition of claim 4 wherein said microcapsules are present in said composition at a level of from about 0.001% to about 1% by weight of the composition.

6. The composition of claim 5 wherein said microcapsules are present in said composition at a level of from about 0.001% to about 0.5% by weight of the composition.

7. The composition of claim 1 wherein said active material is selected from the group consisting of perfumes, flavoring agents, fungicide, brighteners, antistatic agents, wrinkle control agents, fabric softener actives, hard surface cleaning actives, skin and/or hair conditioning agents, antimicrobial actives, UV protection agents, insect repellants, animal/vermin repellants, flame retardants, and mixtures thereof.

8. The composition of claim 7 wherein said active material is perfume.

9. The composition of claim 1 wherein said microcapsules contain said active material at a level of from about 1% to about 99% by weight of the total microcapsule.

10. The composition of claim 1 wherein said microcapsule has a particle size of from about 0.001 micron to about 1 millimeter.

11. The composition of claim 10 wherein said microcapsule has a particle size of from about 1 micron to about 500 microns.

12. The composition of claim 11 wherein said microcapsule has a particle size of from about 10 microns to about 100 microns.

13. The composition of claim 1 wherein said odor control agents are selected from the group consisting of uncomplexed cyclodextrin, odor blockers, reactive aldehydes, flavanoids, zeolites, activated carbon, and mixtures thereof.

14. The composition of claim 1 wherein said encapsulated odor control agent and the odor control agent located outside of said microcapsules are the same.

15. The composition of claim 1 wherein said encapsulated odor control agent and the odor control agent located outside of said microcapsules are different.

16. The composition of claim 1 wherein said odor control agent is present in said composition at a level of from about 0.001% to about 99.99% by weight of the composition.

17. The composition of claim 16 wherein said odor control agent is present in said composition at a level of from about 0.001% to about 20% by weight of the composition.

18. The composition of claim 1 wherein said aqueous carrier comprises water and is present in said composition at a level of at least about 80% by weight of the composition.

19. The composition of claim 1 wherein said composition further comprises a dispersant.

20. The composition of claim 19 wherein said dispersant is selected from the group consisting of pectine, alginate, arabinogalactan, carageenan, gellan gum, xanthum gum, guar gum, acrylates/acrylic polymers, water-swellable clays, fumed silicas, acrylate/aminoacrylate copolymers, and mixtures thereof.

21. The composition of claim 20 wherein said dispersant is selected from the group consisting of acrylate/acrylic polymers, gellan gum, fumed silicas, acrylate/aminoacrylate copolymers, water-swellable clays, and mixtures thereof.

22. The composition of claim 19 wherein said dispersant is present in said composition at a level of from about 0.001% to about 10% by weight of the composition.

23. The composition of claim 22 wherein said dispersant is present in said composition at a level of from about 0.001% to about 1% by weight of the composition.

24. The composition of claim 23 wherein said dispersant is present in said composition at a level of from about 0.001% to about 0.9% by weight of the composition.

25. The composition of claim 1 wherein said composition further comprises free perfume that is not contained in said microcapsule.

26. The composition of claim 1 wherein said composition further comprises solvent.

27. A method of reducing or removing malodor from a surface having malodor, said method comprising the step of contacting said surface with a malodor-controlling composition according to claim 1.

28. The method of claim 27 wherein said composition is packaged in a spray dispenser and said surface is contacted with said composition by spraying said composition from said spray dispenser onto said surface.

29. The method of claim 28 wherein said surface is fabric.