# US 5,703,028 A · Liquid crystal detergent compositions based on anionic sulfonate-ether sulfate mixtures

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- Number: US 5,703,028 A
- Document ID: US5703028A
- Status: Granted
- Kind: A
- Application number: 08/664,368
- Filed: 1996-06-14
- Granted: 1997-12-30
- Earliest claimed: 1996-06-14
- Assignees: Colgate-Palmolive Company
- Inventors: Rita Erilli; Chantal Gallant; Regis Lysy
- Web page: https://patentgrep.com/patent/US5703028A

## CPC

- C11D 3/18: Hydrocarbons {(C11D3/164 takes precedence)}
- C11D 1/37: Mixtures of compounds all of which are anionic
- C11D 3/14: Fillers; Abrasives {; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures (dyes, pigments C11D3/40)}
- C11D 17/0026: {Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase}
- C11D 1/143: {Sulfonic acid esters}
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

This invention relates to a liquid crystal composition comprising a water insoluble organic compound, a sulfonate surfactant, an abrasive, an ethoxylated alkyl ether sulfate surfactant, a cosurfactant and water.

## Claims

### Claim 1

A liquid crystal detergent composition which comprises by weight:
(a) about 15% to about 30% of a sodium paraffin sulfonate;
(b) about 2% to about 20% of a water soluble salt of an ethoxylated C.sub.8-18 alkyl ether sulfate surfactant;
(c) about 1% to about 10% of an abrasive which is selected from the group consisting of calcite, amorphous hydrated silica, polyethylene powder and mixtures thereof;
(d) about 2% to about 15% of tripropylene glycol n-butyl ether;
(e) about 4% to about 10% of a water insoluble organic compound selected from the group consisting of perfumes, essential oils and water insoluble hydrocarbons having about 8 to about 18 carbon atoms; and
(f) the balance being water, wherein said liquid crystal detergent composition has a storage modulus measured at a temperature between 20.degree. C. to 40.degree. C., at a strain of 0.1% to 5% and a frequency of 10 radians/second of at least about one Pascal and said composition does not contain any nonionic surfactant.

### Claim 2 (depends on 1)

The composition of claim 1 wherein said water soluble salt of said ethoxylated C.sub.8-18 alkyl ether sulfate surfactant has a cation selected from the group consisting of sodium, potassium and ammonium.

### Claim 3 (depends on 2)

The composition of claim 2, wherein said water insoluble hydrocarbon is selected from the group consisting of d-limonene, alpha-terpineol, alpha-pinene, beta pinene and mixtures thereof.

### Claim 4 (depends on 1)

A process for treating materials soiled with lipophilic soil to loosen or remove the soil which comprises applying to the locus of said soil on said materials a soil loosening or removing amount of a composition according to claim 1.

### Claim 5 (depends on 4)

A process according to claim 4 wherein the composition is applied as a pre-treatment to material soiled with hard-to-remove lipophilic soil at the locus thereof on the material, after which application the soil is removed by application of the same or a different detergent composition and water.