# US 10,479,960 B2 · Fibrous structures comprising a surface softening composition

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- Number: US 10,479,960 B2
- Document ID: US10479960B2
- Status: Granted
- Kind: B2
- Application number: 15/203,838
- Filed: 2016-07-07
- Published: 2017-01-12
- Granted: 2019-11-19
- Earliest claimed: 2015-07-10
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Khosrow Parviz Mohammadi; Beth Ann Schubert; Jeffrey John Scheibel
- Web page: https://patentgrep.com/patent/US10479960B2

## CPC

- C11D 3/2093: {Esters; Carbonates}
- C11C 3/10: Ester interchange
- C11D 3/001: {Softening compositions}
- C11D 3/226: {esterified}
- C11D 3/3757: {(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions}
- C11D 17/047: {Arrangements specially adapted for dry cleaning or laundry dryer related applications}
- D21H 17/21: of natural origin; Derivatives thereof
- D21H 17/36: Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
- D21H 19/14: applied in a form other than the aqueous solution defined in group D21H19/12
- D21H 21/22: Agents rendering paper porous, absorbent or bulky
- D21H 27/002: {Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00)}
- D21H 27/005: {relating to physical or mechanical properties, e.g. tensile strength, stretch, softness}
- D21H 27/30: Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00)
- C11D 3/3749: {Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins}
- C11D 2111/12: Soft surfaces, e.g. textile
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11C: FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR

## Abstract

Fibrous structures containing a plurality of wood pulp fibers and a surface having thereon a surface softening composition containing a metathesized unsaturated polyol ester having one or more of the following properties: (i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons; (ii) an oligomer index from greater than 0 to 1; and (iii) an iodine value of from about 30 to about 200 is provided.

## Claims

### Claim 1

A fibrous structure comprising a plurality of wood pulp fibers, wherein the fibrous structure comprises a surface comprising a non-transferable surface softening composition comprising a metathesized unsaturated polyol ester having one or more of the following properties:
(i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons;
(ii) an oligomer index from greater than 0 to 1; and
(iii) an iodine value of from about 30 to about 200;
wherein the surface softening composition further comprises a quaternary ammonium compound;
wherein the surface softening composition comprises from about 5% to about 40% by weight of the quaternary ammonium compound;
wherein the fibrous structure comprises from about 0.1% to about 2% of a total basis weight of the surface softening composition; and
wherein the fibrous structure exhibits an average TS7 Softness Value of less than 9.

### Claim 2 (depends on 1)

The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of: a metathesized natural oil composition comprising olefins, esters, and mixtures thereof; a metathesized natural oil composition having a number average molecular weight in the range of from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range of from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range of from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of from about 1 to about 20, wherein the metathesized natural oil composition is metathesized at least once; and mixtures thereof.

### Claim 3 (depends on 1)

The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of a metathesized vegetable oil, a metathesized animal fat, a metathesized algae oil and mixtures thereof.

### Claim 4 (depends on 1)

The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of metathesized canola oil, metathesized rapeseed oil, metathesized coconut oil, metathesized corn oil, metathesized cottonseed oil, metathesized olive oil, metathesized palm oil, metathesized peanut oil, metathesized safflower oil, metathesized sesame oil, metathesized soybean oil, metathesized sunflower oil, metathesized linseed oil, metathesized palm kernel oil, metathesized tang oil, metathesized jatropha oil, metathesized mustard oil, metathesized castor oil, metathesized camelina oil, metathesized pennycress oil, and mixtures thereof.

### Claim 5 (depends on 1)

The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester has an iodine value (IV) that ranges from 50 to 100.

### Claim 6 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure further comprises a lotion composition.

### Claim 7 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure is a through-air-dried fibrous structure.

### Claim 8 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure is a conventionally dried fibrous structure.

### Claim 9 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure is fabric creped.

### Claim 10 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure comprises fibers.

### Claim 11 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Slip Stick Coefficient of Friction of less than 360.

### Claim 12 (depends on 1)

A single- or multi-ply sanitary tissue product comprising a fibrous structure according to claim 1.

### Claim 13 (depends on 12)

The sanitary tissue product according to claim 12 wherein the sanitary tissue product is toilet paper.