# US 5,703,036 A · Thickened aqueous detergent compositions with improved cleaning performance

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,703,036 A
- Document ID: US5703036A
- Status: Granted
- Kind: A
- Application number: 08/617,773
- Filed: 1996-03-19
- Granted: 1997-12-30
- Earliest claimed: 1993-09-20
- Assignees: The Procter & Gamble Company
- Inventors: Panos Iakovides
- Web page: https://patentgrep.com/patent/US5703036A

## CPC

- C11D 17/003: {Colloidal solutions, e.g. gels; Thixotropic solutions or pastes}
- C11D 1/83: Mixtures of non-ionic with anionic compounds
- C11D 1/94: Mixtures with anionic, cationic or non-ionic compounds
- C11D 3/3956: {Liquid compositions}
- C11D 1/10: Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
- C11D 1/123: {derived from carboxylic acids, e.g. sulfosuccinates}
- C11D 1/143: {Sulfonic acid esters}
- C11D 1/146: {Sulfuric acid esters}
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D 1/75: Amino oxides
- C11D 1/90: Betaines
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The compositions of the present invention have a viscosity of from 40 cps to 4000 cps; comprising a viscosity-decreasing short chain surfactant, said surfactant comprising a hydrophobic portion and a hydrophilic portion, wherein the chain length of the hydrophobic portion is C.sub.6 to C.sub.10. The composition also comprises a viscosity restoring long chain surfactant mixture. Said mixture comprises an amine oxide according to the formula R.sub.1 R.sub.2 R.sub.3 NO, wherein R.sub.1 is a linear C.sub.12 to C.sub.16 alkyl group and R.sub.2 and R.sub.3 are independently C.sub.1 to C.sub.3 alkyl groups and an alkali metal alkyl sulphate according to the formula R.sub.4 OSO.sub.3 M, wherein R.sub.4 is a C.sub.12 to C.sub.14 alkyl group and M is an alkali metal. The compositions also preferably comprise hypochlorite.

## Claims

### Claim 1

A detergent composition having a viscosity of from 215 cps to 4000 cps comprising;
from 1 to 5% of a viscosity decreasing short chain surfactant, said surfactant comprising a hydrophobic portion and a hydrophilic portion, wherein the chain length of said hydrophobic portion is C.sub.6 to C.sub.10, said short chain surfactants being selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl succinates, alkyl carboxylates, alkyl sarcosinates, alkyl sulfosuccinates, amine oxides and betaines, and
a viscosity restoring long chain surfactant mixture, said mixture comprising:
from 1 to 5% of an amine oxide according to the formula R.sub.1 R.sub.2 R.sub.3 NO, wherein R.sub.1 is a linear C.sub.12 to C.sub.16 alkyl group and R.sub.2 and R.sub.3 are independently C.sub.1 to C.sub.3 alkyl groups, and
from 1 to 4% of an alkali metal alkyl sulphate according to the formula R.sub.4 OSO.sub.3 M, wherein R.sub.4 is a C.sub.12 to C.sub.14 alkyl group and M is an alkali metal, and wherein the ratio of said C.sub.12 to C.sub.16 amine oxide to the total amount of said C.sub.12 to C.sub.14 alkyl sulfate is less than 2:3.

### Claim 2 (depends on 1)

A detergent composition according to claim 1, wherein said short chain surfactant is an alkyl sulphate.

### Claim 3 (depends on 1)

A detergent composition according to claim 1, comprising from 2% to 5% of said long chain C.sub.12 to C.sub.16 amine oxide.

### Claim 4 (depends on 1)

A detergent composition according to claim 1, wherein said C.sub.12 -C.sub.16 amine oxide is a dimethyl amine oxide.

### Claim 5 (depends on 1)

A detergent composition according to claim 1, wherein said amine oxide is a mixture of C.sub.14 and C.sub.16 amine oxides.

### Claim 6 (depends on 1)

A detergent composition according to claim 1 wherein the said alkali metal sulphate is sodium lauryl sulphate.

### Claim 7 (depends on 1)

A detergent composition according to claim 1, further characterized in that said composition comprises an alkali metal hypochlorite.

### Claim 8 (depends on 7)

A detergent composition according to claim 7, comprising from 0.4% to 4% of said hypochlorite.

### Claim 9 (depends on 7)

A detergent composition according to claim 7, having a pH of above 10.

### Claim 10 (depends on 1)

A detergent composition according to claim 1 wherein said viscosity is from 215 cps to 600 cps.