Composition for reducing malodor impression on inanimate surfaces

• US 7,645,746 B1
• Filed: 11/13/2000
• Issued: 01/12/2010
• Est. Priority Date: 11/13/2000
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Cappel, Jerome Paul, McCarty, Mark Lee, Geis, Philip Anthony, Zwerdling, Susan Schmaedecke, Swartley, Donald Marion, Trinh, Toan, Wahl, Errol Hoffman, Hollingshead, Judith Ann
• Primary Examiner(s): JUSTICE, GINA CHIEUN YU
• Application Number:
  US09/711,447
• Time in Patent Office: 3,347 Days
• Field of Search: 424/76.4, 424/76.1, 424/76.2, 424/76.21, 424/70.1, 424/65, 510/101, 510/109, 510/276, 514/58, 514/54, 512/1, 252/8.92
• US Class Current: 514/58
• CPC Class Codes: A61L 2202/15 Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
• CPC Class Codes: A61L 2202/16 Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles
• CPC Class Codes: A61L 2202/26 Textiles, e.g. towels, beds, cloths
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/502 Protected perfumes
• CPC Class Codes: D06M 13/005 Compositions containing perfumes; Compositions containing deodorants
• 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

Abstract

The present invention relates to an aqueous composition for reducing malodor impression. The composition comprises from about 0.01% to about 1%, by weight of the composition, of perfume. Optionally, but preferably, the composition comprises from about 0.1% to about 5%, by weight of the composition of, water-soluble cyclodextrin, from about 0.1% to about 10%, by weight of the composition, of water-soluble metallic salt, from about 0% to about 3%, by weight of the composition, of solubilizing aid. The composition is essentially free of any material that would soil or stain fabric and contains less than about 5%, by weight of the composition of low molecular weight monohydric alcohols.

Claims

1. An aqueous composition for reducing malodor impression, comprising:

(A) from about 0.01% to about 1%, by weight of the composition, of perfume;

(B) aqueous carrier; and

(C) from about 0.1% to about 5% of solubilized, water-soluble, uncomplexed cyclodextrin and wherein the perfume to cyclodextrin weight ratio is from about 3;

100 to about 100;

100; and

wherein said composition contains less than 5%, by weight of the composition of low molecular weight monohydric alcohols.

2. The composition of claim 1 wherein said water-soluble cyclodextrin is selected from the group consisting of derivatised beta-cyclodextrins, alpha-cyclodextrin and its derivatives, gamma-cyclodextrin and its derivatives, and mixtures thereof.

3. The composition of claim 2 wherein said cyclodextrin derivatives are selected from the group consisting of methyl substituted cyclodextrins, ethyl substituted cyclodextrins, hydroxyalkyl substituted cyclodextrins, branched cyclodextrins, cationic cyclodextrins, quaternary ammonium cyclodextrins, anionic cyclodextrins, amphoteric cyclodextrins, cyclodextrins wherein at least one glucopyranose unit has a 3-6-anhydro-cyclomalto structure, and mixtures thereof.

4. The composition of claim 2 wherein said cyclodextrin is selected from the group consisting of alpha-cyclodextrin, methylated alpha-cyclodextrin, methylated beta-cyclodextrin, hydroxyethyl alpha-cyclodextrin, hydroxyethyl beta-cyclodextrin, hydroxypropyl alpha-cyclodextrin, hydroxypropyl beta-cyclodextrin, and mixtures thereof.

5. The composition of claim 4 wherein said cyclodextrin is methylated beta-cyclodextrin.

6. The composition of claim 4 wherein said cyclodextrin is a mixture of methylated-alpha-cyclodextrin and methylated-beta-cyclodextrin.

7. The composition of claim 4 wherein said cyclodextrin is hydroxypropyl beta-cyclodextrin.

8. The composition of claim 4 wherein said cyclodextrin is a mixture of hydroxypropyl alpha-cyclodextrin and hydroxypropyl beta-cyclodextrin.

9. The composition of claim 1 wherein said cyclodextrin is present at a level of from about 0.2% to about 4%, by weight of the composition and wherein the weight ratio of perfume to cyclodextrin is from about 4:

100 to about 50;

100.

10. The composition of claim 9 wherein said cyclodextrin is present at a level of from about 0.3% to about 3%, by weight of the composition and wherein the weight ratio of perfume to cyclodextrin is from about 5:

100 to about 25;

100.

11. The composition of claim 1 additionally comprising water-soluble metallic salt selected from the group consisting of water-soluble zinc salts, water-soluble copper salts, and mixtures thereof, present at a level of from about 0.1% to about 10%, by weight of the composition.

12. The composition of claim 11 wherein said metallic salt is selected from the group consisting of zinc chloride, zinc gluconate, zinc lactate, zinc maleate, zinc salicylate, zinc sulfate, copper chloride, copper gluconate, and mixtures thereof.

13. The composition of claim 12 wherein said metallic salt is ZnCl₂ present at a level of from about 0.2% to about 7%, by weight of the composition.

14. The composition of claim 1 additionally comprising a solubilizing aid which is a nonionic surfactant selected from the group consisting of fatty acid esters of ethoxylated sorbitans.

15. The composition of claim 14 wherein said solubilizing aid is a fatty acid ester of ethoxylated sorbitan selected from the group consisting of Polysorbate 20, Polysorbate 60, Polysorbate 80, and mixtures thereof.

16. The composition of claim 15 wherein said solubilizing aid is Polysorbate 60.

21. A composition according to claim 1 that is clear.

17. An aqueous composition for reducing malodor impression, comprising:

A. from about 0.01% to about 0.5%, by weight of the composition, of perfume;

B. from about 0.1% to about 5%, by weight of the composition, of methylated beta-cyclodextrin wherein weight ratio of perfume to cyclodextrin is 4;

100 to 50;

100;

C. from about 0.1% to about 10%, by weight of the composition, of solubilized, water-soluble zinc salt;

D. from about 0.02% to about 1%, by weight of the composition, of Polysorbate 60;

E. an effective amount of antimicrobial preservative;

F. water; and

wherein said composition contains less than 1%, by weight of the composition of low molecular weight monohydric alcohols and wherein said composition has a pH of from about 4 to about 5.

20. The process of making the composition of claim 17, comprising:

A. adding said water-soluble zinc salt to distilled water while mixing;

B. adding said antimicrobial preservative while mixing;

C. adjusting the pH of said solution to about 4.0 with HCl;

D. dissolving said cyclodextrin into said solution while mixing;

E. adding said perfume and milling said solution with a high shear mixer; and

F. adding said solubilizing aid while high shear mixing.

18. An aqueous composition for reducing malodor impression, for use on inanimate surfaces, comprising:

A. from about 0.015% to about 0.3%, by weight of the composition, of perfume wherein at least 25% of the perfume ingredients have a Clog P of 3 or less;

B. from about 0.1% to about 5%, by weight of the composition, of hydroxypropyl beta-cyclodextrin, wherein the perfume to cyclodextrin weight ratio is from about 5;

100 to about 25;

100;

C. from about 0.3% to about 5%, by weight of the composition, of ZnCl₂;

D. from about 0.02% to about 1%, by weight of the composition, of low-foaming surfactant; and

E. from about 0.0001% to about 0.01%, by weight of the composition, of a solubilized, water-soluble antimicrobial preservative comprising a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one; and

F. aqueous carrier; and

wherein said composition contains less than 3%, by weight of the composition of low molecular weight monohydric alcohols.

19. An aqueous composition for reducing malodor impression, comprising:

A. from about 0.01% to about 0.5%, by weight of the composition, of perfume;

B. from about 0.1% to about 5%, by weight of the composition, of a mixture of hydroxypropyl alpha-cyclodextrin and hydroxypropyl beta-cyclodextrin wherein the perfume to cyclodextrin weight ratio is from about 3;

100 to about 100;

100;

C. from about 0.1% to about 10%, by weight of the composition, of ZnCl₂;

D. from about 0.02% to about 1%, by weight of the composition, of low-foaming surfactant; and

E. aqueous carrier; and

wherein said composition contains less than 1%, by weight of the composition of low molecular weight monohydric alcohols.