Uncomplexed cyclodextrin compositions for odor control

• US 6,106,738 A
• Filed: 12/09/1998
• Issued: 08/22/2000
• Est. Priority Date: 06/09/1997
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Schneiderman, Eva, Woo, Ricky Ah-Man, Trinh, Toan, Reece, Steven, Chung, Alex Haejoon, Cobb, Daniel Scott, Ward, Thomas Edward, Wolff, Ann Margaret, Rosenbalm, Erin Lynn
• Primary Examiner(s): McAvoy, Ellen M.
• Application Number:
  US09/208,239
• Time in Patent Office: 622 Days
• Field of Search: 252/8.91
• US Class Current: 252/8.91
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/145 air-liquid contact processes, e.g. scrubbing
• CPC Class Codes: D06F 58/203 Laundry conditioning arrangements
• CPC Class Codes: D06F 58/30 Drying processes controlling a series of operations in domestic laundry dryers D06F58/32

Abstract

The present invention relates to a stable, aqueous odor-absorbing composition, preferably for use on inanimate surfaces. The composition comprises from about 0.1% to about 20%, by weight of the composition, of solubilized, water-soluble, uncomplexed cyclodextrin and an effective amount of at least one ingredient to improve the performance of the composition selected from the group consisting of: (1) cyclodextrin compatible surfactant; (2) cyclodextrin compatible antimicrobial active; and (3) mixtures thereof. Hydrophilic perfume improves acceptance. Optionally, the composition can contain low molecular weight polyols; metallic salts to help control odor; a humectant, etc. The composition is essentially free of any material that would soil or stain fabric. The composition is preferably applied as small particle size droplets, especially from spray containers. The cyclodextrin/surfactant combination, either alone, or in combination with the other ingredients, provides improved antimicrobial activity.

Claims

1. A method of treating fabric to reduce wrinkles in said fabric with an effective amount of stable, aqueous odor-absorbing and wrinkle reducing composition, said composition comprising:

(A). an effective amount to absorb malodors of solubilized, uncomplexed cyclodextrin;

(B). optionally, an effective amount to improve the performance of the composition, of cyclodextrin compatible surfactant;

(C). optionally, an effective amount, to kill, or reduce the growth of microbes, of cyclodextrin compatible and water soluble antimicrobial active;

(D). optionally, an effective amount to improve acceptance of the composition of hydrophilic perfume containing at least about 50% by weight of the perfume of ingredients having a ClogP of less than about 3.5 and, optionally, a minor amount of perfume ingredients selected from the group consisting of ambrox, bacdanol, benzyl salicylate, butyl anthranilate, cetalox, damascenone, alpha-damascone, gamma-dodecalactone, ebanol, herbavert, cis-3-hexenyl salicylate, alpha-ionone, beta-ionone, alpha-isomethylionone, lilial, methyl nonyl ketone, gamma-undecalactone, undecylenic aldehyde, and mixtures thereof;

(E). optionally, from about 0.01% to about 3% by weight of the composition of low molecular weight polyol;

(F). optionally, from about 0.001% to about 0.3% by weight of the composition of aminocarboxylate chelator;

(G). optionally, but preferably, an effective amount of metallic salt for improved odor benefit;

(H). optionally, an effective amount of solubilized, water-soluble, antimicrobial preservative; and

(I). aqueous carrier;

said composition being essentially free of any material that would soil or stain fabric under usage conditions and having a pH of more than about 3.5, and said composition being applied as very small droplets having a weight average diameter of from about 10 μ

m to about 100 μ

m.

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

3. The method 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 method of claim 3 wherein said cyclodextrin is methylated beta-cyclodextrin.

5. The method of claim 3 wherein said cyclodextrin is a mixture of methylated alpha-cyclodextrin and methylated beta-cyclodextrin.

6. The method of claim 3 wherein said cyclodextrin is hydroxypropyl beta-cyclodextrin.

7. The method of claim 3 wherein said cyclodextrin is a mixture of hydroxypropyl alpha-cyclodextrin and hydroxypropyl beta-cyclodextrin.

8. The method of claim 1 wherein said cyclodextrin is present at a level of from about 0.01% to about 20% by weight of the composition.

9. The method of claim 8 wherein said cyclodextrin is present at a level of from about 0.01% to about 5% by weight of the composition.

10. The method of claim 9 wherein said cyclodextrin is present at a level of from about 0.1% to about 3%, by weight of the composition.

11. The method of claim 9 wherein said cyclodextrin is present at a level of from about 0.5% to about 2%, by weight of the composition.

22. The method of claim 1 additionally comprising at least one of B.-H.

23. A method of claim 1 wherein said stable, aqueous odor absorbing composition, for use on inanimate surfaces, comprises:

(A). from about 0.5% to about 5%, by weight of the composition, of uncomplexed cyclodextrin selected from the group consisting of;

hydroxypropyl alpha-cyclodextrin;

hydroxypropyl beta-cyclodextrin;

methylated beta-cyclodextrin;

methylated alpha-cyclodextrin; and

mixtures thereof;

(B). from about 0.05% to about 0.3%, by weight of the composition, of cyclodextrin compatible surfactant selected from the group consisting of;

block copolymers of ethylene oxide and propylene oxide;

polyalkyleneoxide polysiloxanes;

alkyldiphenyl oxide disulfonate anionic surfactants having the general formula;

##STR9## wherein R is an alkyl group; and

mixtures thereof;

(C). optionally, an effective amount, to kill, or reduce the growth of microbes, of cyclodextrin compatible and water soluble antimicrobial active selected from the group consisting of halogenated compounds, cyclic nitrogen compounds, quaternary compounds, and phenoxy compounds;

(D). optionally, from about 0.003% to about 0.5% by weight of the composition of hydrophilic perfiune containing at least about 50% by weight of the perfume of perfume ingredients that have a ClogP of less than about 3.5 and, optionally, a minor amount of perfume ingredients selected from the group consisting of ambrox, bacdanol, benzyl salicylate, butyl anthranilate, cetalox, damascenone, alpha-damascone, gamma-dodecalactone, ebanol, herbavert, cis-3-hexenyl salicylate, alpha-ionone, beta-ionone, alpha-isomethylionone, lilial, methyl nonyl ketone, gamma-undecalactone, undecylenic aldehyde, and mixtures thereof;

(E). optionally, from about 0.01% to about 3% by weight of the composition of low molecular weight polyol;

(F). optionally, from about 0.001% to about 0.3% by weight of the composition of aminocarboxylate chelator;

(G). optionally, an effective amount of copper and/or zinc salts, for improved odor benefit;

(H). optionally, from about 0.0001% to about 0.5% by weight of the composition of solubilized, water-soluble, antimicrobial preservative; and

(I). aqueous carrier, said composition being essentially free of any material that would soil or stain fabric under usage conditions, and/or preferably having a pH of more than about 3.

24. The method of claim 1 wherein said composition is clear.

25. The method of claim 1 wherein said composition is sprayed onto said surface using a trigger-spray device.

12. The method of claim I wherein an effective amount of said surfactant is present, said surfactant being selected from the group consisting of:

block copolymers of ethylene oxide and propylene oxide;

polyalkyleneoxide polysiloxanes;

alkyldiphenyl oxide disulfonate anionic surfactant having the general formula;

##STR6## wherein R is an alkyl group; and

mixtures thereof.

13. The method of claim 12 wherein said surfactant is a block copolymer of ethylene oxide and propylene oxide.

14. The method of claim 13 wherein said block copolymer of ethylene oxide and propylene oxide is based on ethylene glycol, propylene glycol, glycerol, trimethylolpropane, ethylenediamine, or mixtures thereof as the initial reactive hydrogen compound.

15. The method of claim 12 wherein said surfactant has the general formula H(EO)_n (PO)_m (EO)_n H, wherein EO is an ethylene oxide group, PO is a propylene oxide group, and n and m are numbers that indicate the average number of the groups in the surfactants, n ranges from about 2 to about 100 and m ranges from about 10 to about 100.

16. The method of claim 12 wherein said surfactant is polyalkyleneoxide polysiloxane having the general formula:

##STR7## wherein a+b are from about 1 to about 50, and R¹ is mainly one or more random poly(ethyleneoxide/propyleneoxide) copolymer groups having the general formula;

space="preserve" listing-type="equation">--(CH.sub.2).sub.n O(C.sub.2 H.sub.4 O).sub.c (C.sub.3 H.sub.6 O).sub.d R.sup.2

wherein n is 3 or 4;

total c (for all polyalkyleneoxy side groups) has a value of from 1 to about 100;

d is from 0 to about 14;

c+d has a value of from about 5 to about 150; and

each R² is the same or different and is selected from the group consisting of hydrogen, an alkyl having 1 to 4 carbon atoms, and an acetyl group.

17. The method of claim 12 wherein said surfactant is anionic surfactant having the general formula:

##STR8## wherein R is an alkyl group.

18. The method of claim 12 wherein said surfactant provides a surface tension of from about 20 dyne/cm to about 45 dyne/cm.

19. The method of claim 18 wherein said surfactant is a block copolymer of poly(ethylene oxide) and/or poly(propylene oxide) where the hydrophilic poly(ethylene oxide) moieties are at the terminal positions.

20. The method of claim 18 wherein said surfactant is a polyalkyleneoxide polysiloxane.

21. The method of claim 12 additionally comprising at least one of C.-H.

26. An article of manufacture comprising container which contains composition comprising:

(A). an effective amount to absorb malodors of solubilized, uncomplexed cyclodextrin;

(B). optionally, an effective amount to improve the performance of the composition, of cyclodextrin compatible surfactant;

(C). optionally, an effective amount, to kill, or reduce the growth of microorganisms, of cyclodextrin compatible and water soluble antimicrobial active;

(D). optionally, an effective amount to improve acceptance of the composition of hydrophilic perfume containing at least about 50% by weight of the perfumed of ingredients having a ClogP of less than about 3.5 and, optionally, a minor amount of perfume ingredients selected from the group consisting of ambrox, bacdanol, benzyl salicylate, butyl anthranilate, cetalox, damascenone, alpha-damascone, gamma-dodecalactone, ebanol, herbavert, cis-3-hexenyl salicylate, alpha-ionone, beta-ionone, alpha-isomethylionone, lilial, methyl nonyl ketone, gamma-undecalactone, undecylenic aldehyde, and mixtures thereof;

(E). optionally, from about 0.01% to about 3% by weight of the composition of low molecular weight polyol;

(F). optionally, from about 0.001% to about 0.3% by weight of the composition of aminocarboxylate chelator;

(G). optionally, but preferably, an effective amount of metallic salt for improved odor benefit;

(H). optionally, an effective amount of solubilized, water-soluble, antimicrobial preservative; and

(I). aqueous carrier;

said composition being essentially free of any material that would soil or stain fabric under usage conditions and having a pH of more than about 3.5, and said article being in association with a set of instructions to use the composition in an amount effective to provide a solution to problems involving, and/or provision of at least one benefit related to, those selected from the group consisting of;

killing, or reducing the level of, microorganisms;

reducing and/or providing resistance to the formation of wrinkles in fabric; and

/or reducing static in addition to the optional instructions relating to the use of the composition for reduction of odors.

27. An article of manufacture according to claim 26 wherein said instructions relate to using said composition to provide reduction of wrinkles in fabric.

28. An article of manufacture according to claim 26 wherein said composition contains from about 0.001% to about 0.8% by weight of the composition of said antimicrobial active and said instructions relate to using said composition to provide reduction of the level of microorganisms on the surface being treated.

29. An article of manufacture according to claim 26 wherein said instructions relate to using said composition to provide reduction of static on the treated surface.