# US 10,870,816 B2 · Fabric treatment compositions having low calculated cationic charge density polymers and fabric softening actives and methods for providing a benefit

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- Number: US 10,870,816 B2
- Document ID: US10870816B2
- Status: Granted
- Kind: B2
- Application number: 15/356,101
- Filed: 2016-11-18
- Published: 2018-05-24
- Granted: 2020-12-22
- Earliest claimed: 2016-11-18
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Renae Dianna Fossum; Gledison Fonseca; Aaron Flores-Figuero
- Web page: https://patentgrep.com/patent/US10870816B2

## CPC

- C11D 3/001: {Softening compositions}
- C11D 1/62: Quaternary ammonium compounds
- C11D 3/0026: {Low foaming or foam regulating compositions}
- C11D 3/30: Amines; Substituted amines {; Quaternized amines}
- C11D 3/373: {containing silicones}
- C11D 3/3769: {(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A fabric treatment composition having a polymer and a fabric softening active. The polymer includes a cationic repeating unit and a non-cationic repeating unit. The polymer has a weight-average molecular weight of from about 40,000 to about 600,000 Daltons. The polymer has a calculated cationic charge density of from about 0.05 to about 2 meq/g at a pH of between about 2 and about 8. The polymer includes less than about 0.1% by mole of a cross-linking agent. The fabric softening active includes a quaternary ammonium compound. The composition has less than about 5% by weight of the composition of an anionic surfactant.

## Claims

### Claim 1

A fabric treatment composition comprising a polymer and a fabric softening active:
(i) wherein said polymer is a quaternized derivative of poly(vinylpyrrolidone-co-methacrylamide-co-vinyl imidazole);
wherein said polymer has a weight-average molecular weight of from about 100,000 to about 500,000 Daltons;
wherein said polymer has a calculated cationic charge density of from about 0.05 to about 2 meq/g at a pH of between about 2 and about 8;
wherein said polymer comprises less than about 0.1% by mole of a cross-linking agent; and
wherein said polymer is present at a level of from about 2% to about 15%, by weight of the fabric treatment composition;
(ii) wherein said fabric softening active comprises a quaternary ammonium compound; and
(iii) wherein said composition is substantially free of anionic surfactant.

### Claim 2 (depends on 1)

The fabric treatment composition according to claim 1, wherein said composition comprises:
from about 1% to about 49% by weight of the composition of said fabric softening active; and
from about 0.1% to about 20% of a perfume.

### Claim 3 (depends on 1)

The fabric treatment composition according to claim 1, wherein said quaternary ammonium compound comprises an alkyl quaternary ammonium compound selected from the group consisting of monoalkyl quaternary ammonium compounds, a dialkyl quaternary ammonium compounds, a trialkyl quaternary ammonium compounds, and mixtures thereof.

### Claim 4 (depends on 1)

The fabric treatment composition according to claim 1, wherein said fabric softening active comprises a quaternary ammonium compound selected from the group consisting of linear quaternary ammonium compounds, branched quaternary ammonium compounds, cyclic quaternary ammonium compounds, and mixtures thereof, wherein said quaternary ammonium compound comprises one or more fatty acid moieties having an average chain length of from about 10 to about 22 carbon atoms and an iodine value of from 0 to about 95.

### Claim 5 (depends on 4)

The fabric treatment composition according to claim 4, wherein said iodine value is from about 0.5 to about 60.

### Claim 6 (depends on 4)

The fabric treatment composition according to claim 4, wherein said quaternary ammonium compound is selected from the group consisting of bis-(2-hydroxyethyl)-dimethylammonium methylsulfate fatty acid ester, bis-(2-hydroxyethyl)-dimethylammonium chloride fatty acid ester, bis-(2-hydroxypropyl)-dimethylammonium methylsulphate fatty acid ester, bis-(2-hydroxypropyl-dimethylammonium chloride fatty acid ester, and mixtures thereof, wherein said fatty acid moieties have an average chain length of from about 16 to about 18 carbon atoms and an iodine value of from 0.5 to 60.

### Claim 7 (depends on 1)

The fabric treatment composition according to claim 1, wherein said composition further comprises a silicone.

### Claim 8 (depends on 7)

The fabric treatment composition according to claim 7, wherein said silicone is selected from the group consisting of cyclic silicones, polydimethylsiloxanes, aminosilicones, cationic silicones, anionic silicones, silicone polyethers, silicone resins, silicone urethanes, and mixtures thereof.

### Claim 9 (depends on 1)

The fabric treatment composition according to claim 1, wherein said composition is substantially free of anionic surfactant.

### Claim 10 (depends on 1)

The fabric treatment composition according to claim 1, wherein said composition further comprises between about 0.1% and about 1% by weight of a suds suppressor.

### Claim 11 (depends on 10)

The fabric treatment composition according to claim 10, wherein said suds suppressor is silicone-based.

### Claim 12 (depends on 1)

The fabric treatment composition according to claim 1, wherein said composition further comprises from about 0.03% to about 1% by weight of the composition of an external structuring system.

### Claim 13 (depends on 12)

The fabric treatment composition according to claim 12, wherein said external structuring system comprises a structurant selected from the group consisting of microfibrillated cellulose, cross-linked cationic polymers, triglycerides, polyacrylates, and mixtures thereof.

### Claim 14

A method of treating a fabric comprising the steps of contacting a fabric with a fabric treatment composition comprising a polymer and a fabric softening active:
(i) wherein said polymer is a quaternized derivative of poly(vinylpyrrolidone-co-methacrylamide-co-vinyl imidazole);
wherein said polymer has a weight-average molecular weight of from about 100,000 to about 500,000 Daltons;
wherein said polymer has a calculated cationic charge density of from about 0.05 to about 2 meq/g at a pH of between about 2 and about 8;
wherein said polymer comprises less than about 0.1% by mole of a cross-linking agent; and
wherein said polymer is present at a level of from about 2% to about 15%, by weight of the fabric treatment composition;
(ii) wherein said fabric softening active comprises a quaternary ammonium compound; and
(iii) wherein said composition is substantially free of anionic surfactant.

### Claim 15 (depends on 14)

The method of treating a fabric according to claim 14, further comprising the steps of washing, rinsing, and/or drying said fabric before the step of contacting said fabric with said fabric treatment composition.

### Claim 16 (depends on 14)

The method of treating a fabric according to claim 14, further comprising the steps of contacting said fabric with an external source of anionic surfactant before the step of contacting said fabric with said fabric treatment composition.
