# US 12,350,135 B2 · Absorbent article with odor control composition

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- Number: US 12,350,135 B2
- Document ID: US12350135B2
- Status: Granted
- Kind: B2
- Application number: 17/884,082
- Filed: 2022-08-09
- Published: 2023-02-09
- Granted: 2025-07-08
- Earliest claimed: 2021-08-09
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Jose Enrique Betancourt; Chad M. Weldishofer
- Web page: https://patentgrep.com/patent/US12350135B2

## CPC

- A61F 13/8405: {Additives, e.g. for odour, disinfectant or pH control}
- A61L 15/26: Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof {(A61L15/225 takes precedence)}
- A61F 13/15577: {Apparatus or processes for manufacturing}
- A61L 15/20: containing organic materials
- A61L 15/28: Polysaccharides or their derivatives {(A61L15/225 takes precedence)}
- A61L 15/46: Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
- A61L 15/48: Surfactants
- A61F 2013/8408: {with odour control}
- A61L 2300/20: containing or releasing organic materials
- A61L 2300/232: Monosaccharides, disaccharides, polysaccharides, lipopolysaccharides
- A61L 2300/626: Liposomes, micelles, vesicles
- A61L 2300/802: Additives, excipients, e.g. cyclodextrins, fatty acids, surfactants
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

A disposable absorbent article having a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet is described. The disposable absorbent article includes an odor control composition having a preservative, a surfactant, methylated beta-cyclodextrin (m-BCD), and perfume.

## Claims

### Claim 1

A disposable absorbent article comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, the disposable absorbent article further comprising:
an odor control composition comprising a preservative, a surfactant, perfume, and position-specific-substituted beta-cyclodextrin, having a degree of substitution in position 3 less than the level of substitution in position 2 and/or in position 6.

### Claim 2 (depends on 1)

The disposable absorbent article of claim 1, wherein the odor control composition comprises from between from about 0.5 percent to 2.0 percent by weight of a preservative.

### Claim 3 (depends on 1)

The disposable absorbent article of claim 1, wherein the odor control composition comprises from about 0.3 percent to about 2.0 percent by weight of a cyclodextrin-compatible surfactant.

### Claim 4 (depends on 1)

The disposable absorbent article of claim 1, wherein the preservative comprises a compound represented by the following Structure I:
HO—CH2—CH2—R (I)
wherein R is a substituted or unsubstituted phenyl group or a substituted or unsubstituted phenoxy group.

### Claim 5 (depends on 1)

The disposable absorbent article of claim 1, wherein the position-specific-substituted beta-cyclodextrin has a substitution degree (DS) of 0.4 to 2.5 —R substituents per glucose unit of cyclodextrin and wherein substitution in position 2 is between about 20 percent and about 90 percent, in position 6 is between about 20 percent and about 90 percent.

### Claim 6 (depends on 5)

The disposable absorbent article of claim 5, wherein substitution in position 3 is less than 50 percent.

### Claim 7 (depends on 5)

The disposable absorbent article of claim 5, wherein the substitution degree is between about 0.9 and about 2.4.

### Claim 8 (depends on 5)

The disposable absorbent article of claim 5, wherein the substitution degree is between about 1.2 and about 2.2.

### Claim 9 (depends on 5)

The disposable absorbent article of claim 5, wherein the position-specific-substituted beta-cyclodextrin is substituted with substituents selected from linear or branched C1-C5 saturated chain.

### Claim 10 (depends on 5)

The disposable absorbent article of claim 5, wherein the position-specific-substituted beta-cyclodextrin is substituted with substituents selected from methyl and hydroxymethyl.

### Claim 11 (depends on 1)

The disposable absorbent article of claim 1, wherein the absorbent article further comprises an overall length generally parallel to a Y-axis and an overall width parallel to an X-axis, wherein the odor control composition is provided in a target zone of the absorbent article.

### Claim 12 (depends on 11)

The disposable absorbent article of claim 11, wherein the target zone is disposed between two outer zones, and wherein the target zone comprises more than about 20 percent to less than about 80 percent of an overall length of the absorbent article.

### Claim 13 (depends on 11)

The disposable absorbent article of claim 11, wherein the target zone is disposed between two outer zones, and wherein the target zone comprises more than about 30 percent to less than about 70 percent of the overall length of the absorbent article.

### Claim 14 (depends on 1)

The disposable absorbent article of claim 1, wherein the odor control composition is provided on the absorbent core.

### Claim 15 (depends on 1)

The disposable absorbent article of claim 1, wherein the perfume comprises a carrier, and wherein the carrier comprises isopropyl myristate.

### Claim 16 (depends on 3)

The disposable absorbent article of claim 3, wherein the cyclodextrin-compatible surfactant is polyalkyleneoxide polysiloxane having a structure according to formula (1):
(CH3)3SiO—[Si(CH3)2O]n—[Si(CH3)(R1)O]ySi(CH3)3 (1)
wherein a+b are from about 1 to about 50, and R1 is the same or different and is selected from the group consisting of methyl and a poly(ethyleneoxide/propyleneoxide) copolymer groups having a structure according to formula (2);
—(CH2)nO(C2H4O)c(C3H6O)dR2 (2)
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; 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.

### Claim 17 (depends on 1)

The disposable absorbent article of claim 1, wherein the perfume is present in an amount of from about 8 percent to about 10 percent.

### Claim 18 (depends on 1)

The disposable absorbent article of claim 1, wherein the position-specific-substituted beta-cyclodextrin is present in an amount of from about 80 percent to about 90 percent.

### Claim 19

A method of making a disposable absorbent article having an odor control composition, the method further comprising the steps of:
obtaining a topsheet material;
obtaining a backsheet material;
obtaining an absorbent core material;
placing the absorbent core material between the topsheet and the backsheet material;
obtaining one or more optional materials which are disposed between the topsheet and the absorbent core and/or the absorbent core and the backsheet;
obtaining an aqueous based odor control composition comprising a position-specific-substituted cyclodextrin, having a degree of substitution in position 3 less than the level of substitution in position 2 and/or in position 6, a preservative, a cyclodextrin compatible surfactant, and a perfume;
applying or having the aqueous based odor control composition applied to at least one of the topsheet, the backsheet, the absorbent core, or the optional materials.

### Claim 20 (depends on 1)

The disposable absorbent article of claim 1, wherein the position-specific-substituted beta-cyclodextrin is substituted only with methyl substituents.