# US 8,540,823 B2 · Liquid cleaning compositions with films

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- Number: US 8,540,823 B2
- Document ID: US8540823B2
- Status: Granted
- Kind: B2
- Application number: 13/264,779
- Filed: 2010-04-23
- Published: 2012-02-09
- Granted: 2013-09-24
- Earliest claimed: 2009-05-01
- Assignees: Colgate-Palmolive Company
- Applicants: Karen Drehs; Amjad Farooq; Thomas Boyd; Cynthia McCullar Murphy; Melissa Fleckenstein
- Inventors: Karen Drehs; Amjad Farooq; Thomas Boyd; Cynthia McCullar Murphy; Melissa Fleckenstein
- Web page: https://patentgrep.com/patent/US8540823B2

## CPC

- C11D 17/0013: {Liquid compositions with insoluble particles in suspension (C11D17/0021, C11D17/0026, C11D17/003 take precedence)}
- C11D 3/505: {encapsulated or adsorbed on a carrier, e.g. zeolite or clay}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A cleaning composition that contains film flakes with beneficial ingredients. The composition with the film flakes releases the beneficial ingredients when it is delivered to the target surface.

## Claims

### Claim 1

A cleaning composition comprising 15-45% of one or more surfactants, a plurality of film flakes, and water, wherein a combination of the surfactant and the water provides the composition with a water activity higher than 0.9, wherein the film flake comprises a polymer system and a beneficial ingredient, wherein the film flake has a solubility in water of 40% to 60%, and the cleaning composition is capable of suspending the plurality of film flakes, wherein the composition is liquid.

### Claim 2 (depends on 1)

The cleaning composition of claim 1, wherein the polymer system comprises polyvinyl acetate.

### Claim 3 (depends on 1)

The cleaning composition of claim 1, wherein the polymer system comprises a water-soluble polymer and a water-insoluble polymer.

### Claim 4 (depends on 3)

The cleaning composition of claim 3, wherein the polymer system comprises at least one water-soluble polymer chosen from polyvinyl alcohol, polyvinyl pyrrolidone, polyalkylene oxides, cellulose ethers, and water-soluble acrylate copolymers.

### Claim 5 (depends on 3)

The cleaning composition of claim 3, wherein the polymer system comprises at least one water-insoluble polymer chosen from cellulose, cellulose acetate, cellulose nitrate, ethylene-vinyl acetate copolymers, polyvinyl acetate, ethyl cellulose, butyl cellulose, isopropyl cellulose, shellac, silicone polymer, acrylic polymers, cellulose acetate phthalate, natural or synthetic rubber, polyethylene, polypropylene, polyesters, polyurethane, and polyamide.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the composition further comprises a suspending agent.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the beneficial ingredient is a fragrance compound.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the composition has a water activity higher than 0.95 and comprises a surfactant content of at least 20%, based on the total weight of the composition.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the polymer system comprises hydroxypropyl methylcellulose and polyvinyl acetate.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the polymer system comprises 60 to 85 weight % hydroxypropyl methylcellulose and 15 to 40 weight % polyvinyl acetate.

### Claim 11 (depends on 1)

The composition of claim 1, wherein the polymer system comprises polyvinyl acetate and E5 hydroxypropyl methylcellulose.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the polymer system comprises 70 to 85 weight % E5 hydroxypropyl methylcellulose and 15 to 30 weight % polyvinyl acetate.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the polymer system comprises polyvinyl acetate, E5 hydroxypropyl methylcellulose, and E50 hydroxypropyl methylcellulose.

### Claim 14 (depends on 1)

The composition of claim 1, wherein the polymer system comprises 13 to 21 weight % E50 hydroxypropyl methylcellulose, 47 to 68 weight% E5 hydroxypropyl cellulose, and 15 to 35 weight % polyvinyl acetate.

### Claim 15 (depends on 1)

A method of delivering delayed release of fragrance, comprising contacting the cleaning composition of claim 1, in which composition the beneficial ingredient is a fragrance compound, with water to dilute the composition.

### Claim 16 (depends on 15)

The method of claim 15, wherein the method further comprises a step of applying an agitating force after the cleaning composition is diluted with water.

### Claim 17

A composition comprising 15-45 weight % of at least one surfactant, a plurality of film flakes, and water, wherein the composition is capable of suspending the plurality of film flakes,
wherein the film flake comprises a polymer system and a beneficial ingredient,
wherein the polymer system comprises hydroxypropyl methylcellulose and polyvinyl acetate, and
wherein the film flake has a solubility in water of 40% to 60%, wherein the composition is a liquid, and wherein a combination of the surfactant and the water provides the composition with a water activity higher than 0.9.

### Claim 18 (depends on 17)

The composition of claim 17, wherein the composition has a water activity higher than 0.95.

### Claim 19 (depends on 17)

The composition of claim 17, wherein the composition further comprises a suspending agent.

### Claim 20 (depends on 17)

The composition of claim 17, wherein the at least one surfactant is present in an amount of 15-35 weight % of the composition.

### Claim 21 (depends on 17)

The composition of claim 17, wherein the polymer system comprises 60 to 85 weight % hydroxypropyl methylcellulose and 15 to 40 weight % polyvinyl acetate.

### Claim 22 (depends on 17)

The composition of claim 17, wherein the polymer system comprises polyvinyl acetate and E5 hydroxypropyl methylcellulose.

### Claim 23 (depends on 17)

The composition of claim 17, wherein the polymer system comprises 70 to 85 weight % E5 hydroxypropyl methylcellulose and 15 to 30 weight % polyvinyl acetate.

### Claim 24 (depends on 17)

The composition of claim 17, wherein the polymer system comprises polyvinyl acetate, E5 hydroxypropyl methylcellulose, and E50 hydroxypropyl methylcellulose.

### Claim 25 (depends on 17)

The composition of claim 17, wherein the polymer system comprises 13 to 21 weight % E50 hydroxypropyl methylcellulose, 47 to 68 weight % E5 hydroxypropyl cellulose, and 15 to 35 weight % polyvinyl acetate.

### Claim 26 (depends on 17)

A method of delivering delayed release of fragrance, comprising contacting the composition of claim 17, in which composition the beneficial ingredient is a fragrance compound, with water to dilute the composition.

### Claim 27

A composition comprising 15-45 weight % of at least one surfactant, a plurality of film flakes, and water, wherein the composition is capable of suspending the plurality of film flakes,
wherein the film flake comprises a polymer system and a beneficial ingredient,
wherein the polymer system comprises polyvinyl acetate, and
wherein the film flake has a solubility in water of 40% to 60%, wherein the composition is a liquid, and wherein a combination of the surfactant and the water provides the composition with a water activity higher than 0.9.

### Claim 28 (depends on 27)

A method of delivering delayed release of fragrance, comprising contacting the composition of claim 27, in which composition the beneficial ingredient is a fragrance compound, with water to dilute the composition.
