# US 4,396,520 A · Detergent compositions

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- Number: US 4,396,520 A
- Document ID: US4396520A
- Status: Granted
- Kind: A
- Application number: 06/371,699
- Filed: 1982-04-26
- Granted: 1983-08-02
- Earliest claimed: 1982-04-26
- Assignees: The Procter & Gamble Company
- Inventors: Nicholas S. Payne; Keith A. Jones; Eugene J. Pancheri
- Web page: https://patentgrep.com/patent/US4396520A

## CPC

- C11D 10/04: based on mixtures of surface-active non-soap compounds and soap
- C11D 1/662: {Carbohydrates or derivatives}
- C11D 1/83: Mixtures of non-ionic with anionic 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 1/22: derived from aromatic compounds
- C11D 1/66: Non-ionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

Mixtures of specific alkyl polysaccharide detergent surfactants and calcium sensitive anionic detergent surfactants provide superior detergency.

## Claims

### Claim 1

A detergent composition comprising:
(1) an alkylpolysaccharide detergent surfactant having the formula RO(R.sup.1 O).sub.t Z.sub.x wherein R is an alkyl, alkylphenol, hydroxyalkyl, hydroxy alkylphenol, or mixtures thereof, and said alkyl groups contain from about 8 to about 18 carbon atoms; wherein each R.sup.1 contains from 2 to about 4 carbon; wherein t is from 0 to about 5; wherein Z is a moiety derived from a reducing saccharide containing from 5 to 6 carbon atoms; and wherein x is is from about 11/2 to about 3;
(2) a calcium sensitive anionic detergent cosurfactant; and
(3) from 0% to about 95% of a detergent builder, the ratio of (2) to (1) being from about 1:1 to about 6:1 on a molar basis and the free fatty alcohol content being less than about 2%.

### Claim 2 (depends on 1)

The composition of claim 1 wherein t is 0, and x is from about 11/2 to about 21/2.

### Claim 3 (depends on 1)

The composition of claim 1 wherein said calcium sensitive anionic detergent cosurfactant has the formula
R(SO.sub.3).sub.y (COO).sub.z (OSO.sub.3).sub.n M.sub.q
wherein R has the meaning given hereinbefore; y, z and n are numbers from 0 to about 4; y+z+n is from 1 to about 3, M is a cationic moiety; and q is selected to complete the formula.

### Claim 4 (depends on 3)

The composition of claim 3 wherein t is 0, x is from about 11/2 to about 21/2.

### Claim 5 (depends on 4)

The composition of claim 4 wherein said alkyl groups contain from about 10 to about 14 carbon atoms, and Z is selected from the group consisting of glucose, galactose, glucosyl, and galactosyl residues and mixtures thereof.

### Claim 6 (depends on 5)

The composition of claim 5 wherein Z is derived from glucose.

### Claim 7 (depends on 4, 5, 6)

The compositions of claims 4, 5 or 6 wherein the anionic detergent cosurfactant is an alkyl sulfate containing from about 6 to about 30 carbon atoms.

### Claim 8 (depends on 4, 5, 6)

The compositions of claims 4, 5 or 6 wherein the anionic detergent cosurfactant is an alkyl sulfonate containing from about 6 to about 30 carbon atoms.

### Claim 9 (depends on 4, 5, 6)

The compositions of claims 4, 5 or 6 wherein said anionic detergent cosurfactant is an alkyl benzene sulfonate in which the alkyl contains from about 6 to about 20 carbon atoms.

### Claim 10 (depends on 4, 5, 6)

The compositions of claims 4, 5 or 6 wherein said anionic detergent cosurfactant is a fatty acid soap containing from about 6 to about 30 carbon atoms.

### Claim 11 (depends on 1)

The composition of claim 1 wherein the ratio of (2) to (1) is from about 2:1 to about 4:1.

### Claim 12 (depends on 11)

The compositions of claim 11 wherein the anionic detergent cosurfactant is an alkyl sulfate containing from about 6 to about 30 carbon atoms.

### Claim 13 (depends on 11)

The compositions of claim 11 wherein the anionic detergent cosurfactant is an alkyl sulfonate containing from about 6 to about 30 carbon atoms.

### Claim 14 (depends on 11)

The compositions of claim 11 wherein said anionic detergent cosurfactant is an alkyl benzoate sulfonate in which the alkyl contains from about 6 to about 20 carbon atoms.

### Claim 15 (depends on 11)

The composition of claim 11 wherein said anionic detergent cosurfactant is a fatty acid soap containing from about 6 to about 30 carbon atoms.