# US 11,992,540 B2 · Sulfate free personal cleansing composition comprising low inorganic salt

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- Number: US 11,992,540 B2
- Document ID: US11992540B2
- Status: Granted
- Kind: B2
- Application number: 18/083,741
- Filed: 2022-12-19
- Published: 2023-04-27
- Granted: 2024-05-28
- Earliest claimed: 2017-10-10
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Brooke Michele Cochran; Brian Xiaoqing Song; Howard David Hutton, III; Andrei Sergeevich Bureiko; Peter Herbert Koenig
- Web page: https://patentgrep.com/patent/US11992540B2

## CPC

- A61K 8/046: {Aerosols; Foams}
- A61G 5/12: Rests specially adapted therefor, e.g. for the head or the feet
- A61K 8/20: Halogens; Compounds thereof
- A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
- A61K 8/442: {substituted by amido group(s)}
- A61K 8/466: {containing sulfonic acid derivatives; Salts}
- A61K 8/731: {Cellulose; Quaternized cellulose derivatives}
- A61K 8/737: {Galactomannans, e.g. guar; Derivatives thereof}
- A61K 8/817: {Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)}
- A61K 8/89: Polysiloxanes
- A61Q 5/006: {Antidandruff preparations}
- A61Q 5/02: Preparations for cleaning the hair
- A61Q 5/12: Preparations containing hair conditioners
- A61Q 19/10: Washing or bathing preparations
- A61K 2800/262: Transparent; Translucent
- A61K 2800/30: Characterized by the absence of a particular group of ingredients
- A61K 2800/5426: cationic
- A61K 2800/596: Mixtures of surface active compounds
- A61K 2800/87: Application Devices; Containers; Packaging
- 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)
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

Personal cleansing compositions having an anionic surfactant, cationic deposition polymer, a level of inorganic salt of from about 0 to about 1 wt %, and an aqueous carrier. The composition is substantially free of sulfate containing surfactants. The composition can further comprise amphoteric surfactants. The composition remains phase stable, and minimizes coacervate formulation until after dilution with water.

## Claims

### Claim 1

A cleansing composition comprising:
a) about 3 wt % to about 35 wt % of an anionic surfactant;
b) about 3 wt % to about 15% of an amphoteric surfactant;
c) about 0.01 wt % to about 2 wt % of a cationic polymer having a weight average molecular weight of 300,000 g/mol to about 3,000,000 g/mol;
d) about 0 wt % to about 1.0 wt % of inorganic salts; and
e) an aqueous carrier,
wherein the composition is substantially free of sulfate-based surfactant and does not form a coacervate prior to use.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the anionic surfactant is selected from the group consisting of sodium, ammonium or potassium salts of isethionates; sodium, ammonium or potassium salts of sulfonates; sodium, ammonium or potassium salts of ether sulfonates; sodium, ammonium or potassium salts of sulfosuccinates; sodium, ammonium or potassium salts of sulfoacetates; sodium, ammonium or potassium salts of glycinates; sodium, ammonium or potassium salts of sarcosinates; sodium, ammonium or potassium salts of glutamates; sodium, ammonium or potassium salts of alaninates; sodium, ammonium or potassium salts of carboxylates; sodium, ammonium or potassium salts of taurates; sodium, ammonium or potassium salts of phosphate esters; and combinations thereof.

### Claim 3 (depends on 2)

The composition of claim 2, wherein the anionic surfactant is a sodium salt of an alpha olefin sulfonate.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the cationic polymer is selected from the group consisting of cationic guars, cationic cellulose, cationic synthetic homopolymers, cationic synthetic copolymers, and combinations thereof.

### Claim 5 (depends on 4)

The composition of claim 4, wherein the cationic polymer is selected from the group consisting of hydroxypropyltrimonium guar, Polyquaternium 10, Polyquaternium 6, and combinations thereof.

### Claim 6 (depends on 1)

The composition of claim 1 wherein the inorganic salt is selected from the group consisting of sodium chloride, potassium chloride, sodium sulfate, ammonium chloride, sodium bromide, and combinations thereof.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the composition has a viscosity lower than about 5000 cps.

### Claim 8 (depends on 1)

The composition of claim 1 wherein the composition is delivered as a foam.

### Claim 9 (depends on 8)

The composition of claim 8, wherein the composition comprises a propellant.

### Claim 10 (depends on 8)

The composition of claim 8, wherein the foam is delivered from a mechanical pump foamer.

### Claim 11 (depends on 1)

The composition of claim 1 further comprising silicone conditioning agents.

### Claim 12 (depends on 11)

The composition of claim 11, wherein the silicone conditioning agent is an emulsion with particle size lower than about 30 microns.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the inorganic salt level is about 0 wt % to about 0.9 wt %.

### Claim 14 (depends on 13)

The composition of claim 13, wherein the inorganic salt level is about 0 wt % to about 0.8 wt %.

### Claim 15 (depends on 14)

The composition of claim 14, wherein the inorganic salt level is about 0 wt % to about 0.2 wt %.

### Claim 16 (depends on 1)

The composition of claim 1, wherein the amphoteric surfactant is selected from the group consisting of betaines, sultaines, hydroxysultaines, amphohydroxypropyl sulfonates, alkyl amphoactates, alkyl amphodiacetates and combination thereof.

### Claim 17

A cleansing composition comprising:
a) about 5 wt % to about 35 wt % of an anionic surfactant selected from amino acid based surfactants;
b) about 0.01 wt % to about 2 wt % cationic polymer having a weight average molecular weight of 300,000 g/mol to about 3,000,000 g/mol;
c) about 0 wt % to about 1.0 wt % of inorganic salts; and
d) an aqueous carrier,
wherein the composition is substantially free of sulfate-based surfactant and does not form a coacervate prior to use.

### Claim 18 (depends on 17)

The composition of claim 17, wherein the anionic surfactant is selected from the group consisting of sodium, ammonium or potassium salts of acyl glycinates; sodium, ammonium or potassium salts of acyl sarcosinates; sodium, ammonium or potassium salts of acyl glutamates; sodium, ammonium or potassium salts of acyl alaninates and combinations thereof.

### Claim 19 (depends on 17)

The composition of claim 17, further comprising an amphoteric surfactant.