# US 5,346,639 A · Spray dispensed shampoo

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- Number: US 5,346,639 A
- Document ID: US5346639A
- Status: Granted
- Kind: A
- Application number: 08/179,920
- Filed: 1994-01-11
- Granted: 1994-09-13
- Earliest claimed: 1994-01-11
- Inventors: Geoff Hatfield
- Web page: https://patentgrep.com/patent/US5346639A

## CPC

- A61K 8/046: {Aerosols; Foams}
- A61K 8/42: Amides
- A61K 8/442: {substituted by amido group(s)}
- A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate}
- A61Q 5/02: Preparations for cleaning the hair
- C11D 1/94: Mixtures with anionic, cationic or non-ionic compounds
- C11D 17/041: {Compositions releasably affixed on a substrate or incorporated into a dispensing means}
- A61K 2800/596: Mixtures of surface active compounds
- C11D 1/02: Anionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)}
- C11D 1/14: derived from aliphatic hydrocarbons or mono-alcohols
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D 1/38: Cationic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)}
- C11D 1/523: {Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group}
- C11D 1/90: Betaines
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A spray shampoo composition is formulated having a viscosity less than 40 CPS but with an actives concentration of 8% to 15%. This is accomplished by combining anionic detergents such as ammonium laurel sulfate and ammonium laureth sulfate, along with amphoteric surfactants such as cocamidopropyl betaine, along with nonionic surfactants such as cocamide DEA and lauramide DEA, wherein the detergent is substantially free from neutral salt thixatropes. This provides a highly concentrated detergent which has a viscosity which permits atomization of the detergent when dispensed from a finger pump sprayer.

## Claims

### Claim 1

In combination, a spray dispenser and a shampoo composition, said shampoo composition having a viscosity less than 40 CPS, formed from the combination of anionic surfactants, amphoteric surfactants and nonionic surfactants at a combined concentration of said surfactants of 8% to 15% wherein said composition is substantially free from neutral thixotropic salts.

### Claim 2 (depends on 1)

The combination claimed in claim 1 wherein said anionic surfactants are selected from the group consisting of ammonium laurel sulfate and ammonium laureth sulfate.

### Claim 3 (depends on 2)

The composition claimed in claim 2 wherein said amphoteric surfactant is a cocamidal alkyl betaine.

### Claim 4 (depends on 3)

The detergent composition claimed in claim 3 wherein said nonionic surfactants are selected from the group consisting of cocamide DEA and lauramide DEA.

### Claim 5 (depends on 1)

The composition claimed in claim 1 wherein said anionic surfactants are selected from the group consisting of ammonium mono- , di- and tri-ethanolamine salts of alkyl and aralkyl sulfates and aralkyl sulfonates.

### Claim 6 (depends on 1)

The composition claimed in claim 1 wherein said viscosity is less than about 30 CPS and wherein the actives of said detergent are from about 10% to about 15%.

### Claim 7

A detergent composition contained in a pump sprayer wherein said detergent composition has an actives content of about 10% to 12% and a viscosity less than about 30 CPS, wherein said detergent composition consists essentially of ammonium laurel sulfate, ammonium laureth sulfate, cocamidopropyl betaine, cocamide DEA and lauramide DEA and wherein said detergent is substantially free of neutral thixotropic salts.