US 5,942,217 AGranted

Uncomplexed cyclodextrin compositions for odor control

AssigneeThe Procter & Gamble Company

InventorsRicky Ah-Man Woo, Toan Trinh, Daniel Scott Cobb, Eva Schneiderman, Ann Margaret Wolff, Erin Lynn Rosenbalm, Thomas Edward Ward, Alex Haejoon Chung, Steven Reece

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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.

Claims33

Dependent claims

A stable, aqueous odor-absorbing composition comprising:

(A). an effective amount to absorb malodors of solubilized, uncomplexed cyclodextrin;
(B). an effective amount to reduce the surface tension of the composition to from about 20 dyne/cm to about 45 dyne/cm, 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:
##STR6## 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;
(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, 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.

12 more elements

A stable, aqueous odor absorbing composition, for use on inanimate surfaces, comprising:

(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 surfactant having the general formula:
##STR8## wherein R is an alkyl group;
and mixtures thereof to reduce the surface tension to from about 20 dyne/cm to about 45 dyne/cm;
(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 perfume 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 having a pH of more than about 3.5.

18 more elements

Dependencies are inferred from the claim text.