Method of deodorizing and/or cleaning carpet using a composition comprising odor control agent

• US 20030191034A1
• Filed: 02/06/2003
• Published: 10/09/2003
• Est. Priority Date: 09/02/1999
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Kiblinger, Robert William, Nichols, Kristin Marie, Woo, Ricky Ah-Man, DuVal, Dean Larry, Uchiyama, Hirotaka, Reece, Steven, Cobb, Daniel Scott
• Granted Patent: US 6,833,342 B2
• Time in Patent Office: Days
• US Class Current: 510/101
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: C11D 1/82 Compounds containing silicon
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/0031 Carpet, upholstery, fur or leather cleansers
• CPC Class Codes: C11D 3/046 Salts
• CPC Class Codes: C11D 3/2072 Aldehydes-ketones
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
• CPC Class Codes: C11D 3/38 Products with no well-defined composition , e.g. natural products
• CPC Class Codes: C11D 3/507 Compounds releasing perfumes by thermal or chemical activation

Abstract

A method of deodorizing and/or reducing malodor in carpet comprises the step of contacting the carpet with a deodorizing composition comprising an effective amount of odor control agent. In a preferred embodiment, the deodorizing composition is a concentrated composition and the method comprises diluting the concentrated deodorizing composition to form a diluted deodorizing composition and using the diluted deodorizing composition in combination with a carpet extractor to deodorize the carpet. An article of manufacture for deodorizing carpet comprises a container, a deodorizing composition in the container, and a set of instructions in association with the container to communicate the benefits of the present methods and the uses of the present compositions.

Claims

1. A deodorizing composition useable as an additive in one or more steps of a carpet cleaning method, said composition comprising:

(A) an effective amount of odor control agent to provide a significant reduction in malodor that exists in carpet, wherein said odor control agent is selected from the group consisting of;

(i) from about 0.1% to about 50%, by weight of said deodorizing composition, of solubilized, uncomplexed cyclodextrin;

(ii) from about 0.0005% to about 1%, by weight of said deodorizing composition, of odor blocker;

(iii) from about 0.01% to about 1%, by weight of said deodorizing composition, of aldehydes selected from the group consisting of class I aldehydes, class 11 aldehydes, and mixtures thereof;

(iv) from about 0.01% to about 5%, by weight of said deodorizing composition, of flavanoid;

(v) from about 0.1% to about 10%, by weight of said deodorizing composition, of metallic salts; and

(vi) mixtures thereof;

(B) optionally, an effective amount of water soluble polymer for improved odor control benefit;

(C) optionally, an effective amount to improve acceptance of the composition, of an emulsion comprising perfume in addition to said odor blocker, class I aldehydes, class II aldehydes, and/or flavanoids, wherein said perfume, when present, being in addition to said odor blocker, class I aldehydes, class II aldehydes, flavanoids, and/or metallic salts;

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

(E) optionally, at least about 0.1%, by weight, of a soil suspending agent selected from the group consisting of a water-soluble substituted or unsubstituted, modified or unmodified polyalkyleneimine soil suspending agent, said soil suspending agent comprising a polyamine backbone;

(F) optionally, an effective amount, to kill, or reduce the growth of microbes, of water soluble antimicrobial active,;

(G) optionally, from about 0.01% to about 5%, by weight of said deodorizing composition, of low molecular weight polyol;

(H) optionally, from about 0.001% to about 1%, by weight of said deodorizing composition, of chelating agent;

(I) optionally, at least about 0.001%, by weight of said deodorizing composition, of brightener;

(I) optionally, from about 0.0001% to about 0.5%, by weight of said deodorizing composition, of solubilized, water-soluble, antimicrobial preservative; and

(J) aqueous carrier that optionally comprises up to 20% of a lower molecular weight, water soluble alcohol;

said composition being essentially free of any material that would soil or stain carpet under usage conditions and having a pH of more than about 3.

2. A deodorizing composition according to claim 1, wherein either:

(a) said odor control agent is cyclodextrin present at a level of from about 0.01% to about 20% by weight of said deodorizing composition and wherein said perfume is present at a level of from about 0.003% to about 0.5% by weight of the composition and contains at least about 60%, by weight of said perfume, of perfume ingredients that have a ClogP of more than about 3 and a molecular weight of more than about 210;

(b) said odor control agent is cyclodextrin present at a level of from about 0.01% to about 5% by weight of said deodorizing composition and wherein said perfume is present at a level of from about 0.01% to about 0.3% by weight of the composition and contains at least about 70%, by weight of the perfume, of perfume ingredients that have a ClogP of more than about 3.5 and a molecular weight of more than about 220;

or

(c) said odor control agent is cyclodextrin present at a level of from about 0.1% to about 3%, by weight of the composition and wherein said perfume is present at a level of from about 0.05% to about 0.2%, by weight of the composition and contains at least about 80%, by weight of the perfume, of perfume ingredients that have a ClogP of more than about 3.5 and a molecular weight of more than about 220.

3. A deodorizing composition according to claim 1, wherein said odor control agent is cyclodextrin selected either from the group consisting of beta-cyclodextrin, alpha-cyclodextrin, gamma-cyclodextrin, derivatives of said cyclodextrins, and mixtures thereof;

or 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. A deodorizing composition according to claim 3, wherein said cyclodextrin is either methylated beta-cyclodextrin;

a mixture of methylated alpha-cyclodextrin and methylated beta-cyclodextrin;

hydroxypropyl beta-cyclodextrin;

or a mixture of hydroxypropyl alpha-cyclodextrin and hydroxypropyl beta-cyclodextrin.

5. A deodorizing composition according to claim 1, wherein said odor control agent is cyclodextrin and said perfume perfume is formed into an emulsion having particles of at least 0.01 micron in diameter before said cyclodextrin is present using a surfactant material selected from the group consisting of:

cyclodextrin compatible surfactants;

polymers containing both hydrophobic and hydrophilic portions; and

/or cationic fabric softening actives that form stable vesicles in the desired particle size range.

6. A deodorizing composition according to claim 5, wherein said surfactant material comprises either:

(a) siloxane surfactant having the general formula;

R¹—

(CH₃)₂SiO—

[(CH₃)₂SiO]_a—

[(CH₃)(R¹)SiO]_b—

Si(CH₃)₂—

R¹

wherein a+b are from about 1 to about 50, and each R¹ is the same or different and is selected from the group consisting of methyl and a poly(ethyleneoxide/propyleneoxide) copolymer group having the general formula;

—

(CH₂)_nO(C₂H₄O)_c(C₃H₆ O)_dR²

with at least one R¹ being a poly(ethyleneoxide/propyleneoxide) copolymer group, and wherein n is 3 or 4;

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

total d is from 0 to about 14;

total 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;

(b) block copolymer containing hydrophobic portions which comprise monomers that are hydrophobic and hydrophilic portions which comprise monomers that are hydrophilic, said block copolymer having a molecular weight of from about 1,000 to about 1,000,000, and a ratio of hydrophilic portion to hydrophobic portion being from 20/80 to about 90/10.

(c) block copolymers of ethylene oxide and propylene oxide;

(d) polyalkyleneoxide polysiloxanes;

(e) alkyldiphenyl oxide disulfonate anionic surfactant having the general formula;

wherein R is an alkyl group;

(f) castor oil surfactant;

(g) sorbitan ester surfactant;

(h) polyethoxylated fatty alcohol surfactant;

(i) glycerol mono-fatty acid ester surfactant;

(j) polyethylene glycol fatty acid ester surfactant;

or

(k) fluorocarbon surfactant.

7. A deodorizing composition according to claim 1, wherein said composition comprises from about 0.001% to about 3%, by weight of said composition, of water soluble anionic polymer for improved odor control.

8. A deodorizing composition according to claim 1, wherein said composition comprises from about 0.005% to about 3%, by weight of said composition, of water soluble zinc salt for improved odor control.

9. A method of deodorizing carpet comprising the steps of:

(a) diluting a concentrated deodorizing composition comprising odor control agent according to claim 1 with water to form a diluted deodorizing composition; and

(b) contacting said carpet with said diluted deodorizing composition.

10. A method according to claim 9, wherein said odor control agent of said concentrated deodorizing composition is cyclodextrin at a level of from about 0.1% to about 50%, by weight of the concentrated deodorizing composition, and wherein said concentrated deodorizing composition is diluted with water to form a diluted deodorizing composition having from about 0.01% about 10%, by weight of said diluted deodorizing composition, of cyclodextrin.

11. A method of deodorizing carpet comprising the steps of:

(a) adding a concentrated deodorizing composition comprising odor control agent according to claim 1 to a detergent composition for cleaning carpet to form a combined deodorizing and cleaning composition; and

(b) contacting said carpet with said combined composition.

12. A method according to claim 11, wherein said combined deodorizing and cleaning composition comprises from about 0.0005% to about 50% of odor control agent.

13. A method according to claim 12, wherein said odor control agent is selected from the group consisting of cyclodextrin, odor blocker, class I aldehydes, class II aldehydes, flavanoid, metallic salts, and mixtures thereof.

14. A method for deodorizing carpet comprising the steps of:

(a) diluting a concentrated deodorizing composition comprising from about 0.1% to about 50%, by weight of said concentrated deodorizing composition, of solubilized, uncomplexed cyclodextrin, with water to form a diluted deodorizing composition comprising from about 0.01% to about 10%, by weight of said diluted deodorizing composition, of said cyclodextrin;

(b) placing said diluted deodorizing composition in a cleaning solution supply tank of a carpet extractor;

(c) dispensing said diluted deodorizing composition from said supply tank of said carpet extractor onto said carpet;

(d) suctioning said deodorizing composition from said carpet and into a recovery tank of said carpet extractor.

15. A method according to claim 14, wherein said cyclodextrin is selected either from the group consisting of beta-cyclodextrin, alpha-cyclodextrin, gamma-cyclodextrin, derivatives of said cyclodextrins, and mixtures thereof;

or 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.

16. A method for deodorizing carpet comprising the steps of:

(a) contacting said carpet with a deodorizing composition comprising odor control agent, wherein said deodorizing composition is selected from the group consisting of a diluted deodorizing composition and a concentrated composition, and wherein said odor control agent is selected from the group consisting of cyclodextrin, odor blocker, class I aldehydes, class II aldehydes, flavanoid, metallic salts, and mixtures thereof; and

(b) contacting said carpet with a carpet extractor having a supply tank, wherein said supply tank contains a solution selected from the group consisting of;

(i) water;

(ii) a diluted deodorizing composition;

(iii) a detergent composition for cleaning carpet; and

(iv) a combined deodorizing and cleaning composition comprising odor control agent.

17. An article of manufacture for deodorizing carpet comprising:

(a) a container;

(b) a concentrated deodorizing composition comprising odor control agent selected from the group consisting of;

(i) from about 0.1% to about 50%, by weight of said concentrated deodorizing composition, of solubilized, uncomplexed cyclodextrin;

(ii) from about 0.0005% to about 1%, by weight of said concentrated deodorizing composition, of of odor blocker;

(iii) from about 0.01% to about 1%, by weight of said concentrated deodorizing composition, of aldehydes selected from the group consisting of class I aldehydes, class II aldehydes, and mixtures thereof;

(iv) from about 0.01% to about 5%, by weight of said concentrated deodorizing composition, of flavanoid;

(v) from about 0.1% to about 10%, by weight of said concentrated deodorizing composition, of metallic salts; and

(vi) mixtures thereof;

(c) a set of instructions in association with said container comprising an instruction to deodorize carpet by contacting said carpet with said concentrated deodorizing composition.

18. An article of manufacture according to claim 17, wherein said set of instructions further comprise an instruction to dilute said concentrated deodorizing composition with water in a ratio of concentrated deodorizing composition to water of from about 1:

1000 to about 1;

2 to form a diluted deodorizing composition, and then contact said carpet with said diluted deodorizing composition.

19. An article of manufacture according to claim 18, wherein said set of instructions further comprise an instruction to add said diluted deodorizing composition to a cleaning solution supply tank of a carpet extractor, then dispense said diluted deodorizing composition from said supply tank of said carpet extractor onto said carpet, and suction said deodorizing composition from said carpet with said carpet extractor.

20. An article of manufacture according to claim 19, wherein said set of instructions further comprise an instruction to add either said concentrated deodorizing composition or said diluted deodorizing composition to a detergent composition for cleaning carpet to form a combined deodorizing and cleaning composition, and then add said combined composition to said supply tank.