# US 2010/0167975 A1 · Cleaning formulation for a dish washer

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- Number: US 2010/0167975 A1
- Document ID: US20100167975A1
- Status: Published application
- Kind: A1
- Application number: 12/376,840
- Filed: 2007-07-31
- Published: 2010-07-01
- Earliest claimed: 2006-08-10
- Assignees: BASF SE
- Inventors: Guido Vandermeulen; Lidcay Herrera Taboada; Tanja Seebeck
- Web page: https://patentgrep.com/patent/US20100167975A1

## CPC

- C11D 3/378: {(Co)polymerised monomers containing sulfur, e.g. sulfonate}
- C11D 1/66: Non-ionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)}
- C11D 1/825: Mixtures of compounds all of which are non-ionic
- C11D 3/33: Amino carboxylic acids
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A detergent formulation for machine dishwashing comprises: a) from 1 to 20% by weight of one or more copolymers obtainable by polymerizing aa) from 5 to 80% by weight of one or more monoethylenically unsaturated monocarboxylic acids or salts thereof, bb) from 5 to 60% by weight of one or more monoethylenically unsaturated dicarboxylic acids or the salts or anhydrides thereof, cc) from 1 to 50% by weight of one or more sulfo-containing monomers or salts thereof and dd) from 0 to 50% by weight of further ionic or nonionogenic monomers; b) from 1 to 50% by weight of one or more complexing agents from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid and glycine-N,N-diacetic acid derivatives, glutamic acid-N,N-diacetic acid, iminodisuccinate, hydroxyiminodisuccinate, S,S-ethylenediaminedisuccinate, aspartic acid-diacetic acid and salts thereof; c) from 1 to 15% by weight of nonionic surfactants; d) from 0 to 30% by weight of bleaches and if appropriate bleach activators; e) from 0 to 60% by weight of further builders; f) from 0 to 8% by weight of enzymes and g) from 0 to 50% by weight of one or more further additives, such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, corrosion inhibitors, defoamers, dyes, fragrances, fillers, organic solvents and water.

## Claims

### Claim 1

A detergent formulation for machine dishwashing, comprising
a) from 1 to 20% by weight of one or more copolymers consisting of monomers
aa) from 5 to 80% by weight of one or more monoethylenically unsaturated monocarboxylic acids or salts thereof,
bb) from 5 to 60% by weight of one or more monoethylenically unsaturated dicarboxylic acids or the salts or anhydrides thereof,
cc) from 1 to 50% by weight of one or more sulfo-containing monomers or salts thereof
b) from 1 to 50% by weight of one or more complexing agents from the group of glycine-N,N-diacetic acid derivatives, glutamic acid-N,N-diacetic acid, iminodisuccinate, hydroxyiminodisuccinate, S,S-ethylenediaminedisuccinate, aspartic acid-diacetic acid and salts thereof;
c) from 1 to 15% by weight of nonionic surfactants;
d) from 0 to 30% by weight of bleaches;
e) from 0 to 60% by weight of further builders;
f) from 0 to 8% by weight of enzymes; and
g) from 0 to 50% by weight of one or more further additives.

### Claim 2 (depends on 1)

The detergent formulation according to claim 1, wherein the monomers (aa) are monocarboxylic acids of the formula (I)
R1(R2)C═C(R3)COOH (I)
in which R1, R2, R3 are each independently H, a straight-chain or branched alkyl radical having from 1 to 12 carbon atoms or a straight-chain or branched, mono- or polyunsaturated alkenyl radical having from 2 to 12 carbon atoms, wherein the latter two radicals are unsubstituted or substituted, and water-soluble salts thereof.

### Claim 3 (depends on 2)

The detergent formulation according to claim 2, wherein the monoethylenically unsaturated monocarboxylic acids (aa) are selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid and vinylacetic acid.

### Claim 4 (depends on 1)

The detergent formulation according to claim 1, wherein the monomer (bb) is one or more monoethylenically unsaturated dicarboxylic acids of the general formula (II) or (III)
(HOOC)R4C═CR5(COOH) (II)
R4R5C═C(—(CH2)n—COOH)(COOH) (III)
where R4 and R5 are each independently H or a straight-chain or branched alkyl radical having from 1 to 20 carbon atoms and is unsubstituted or substituted, and where, in the formula (II) or (III), two R4, R5 radicals together may also form an alkylene radical having from 3 to 20 carbon atoms, and
n is an integer from 0 to 5,
or the anhydrides and water-soluble salts thereof.

### Claim 5 (depends on 4)

The detergent formulation according to claim 4, wherein the monomers (bb) are selected from the group consisting of maleic acid, fumaric acid, methylfumaric acid, methylmaleic acid, dimethylmaleic acid and their cyclic anhydrides, methylenemalonic acid and itaconic acid.

### Claim 6 (depends on 1)

The detergent formulation according to claim 1, wherein the sulfonic acid-containing monomers (cc) are those of the formula (IV)
R6(R7)C═C(R8)—X—SO3H (IV)
in which
R6, R7 and R8 are each independently —H, a straight-chain or branched alkyl radical having from 1 to 12 carbon atoms, a straight-chain or branched, mono- or polyunsaturated alkenyl radical having from 2 to 12 carbon atoms, the latter two radicals being unsubstituted or substituted by one or more —NH2, —OH or —COOH groups, or —COOH or —COOR9, or
R6 is also XSO3H;
R9 is a saturated or unsaturated, straight-chain or branched hydrocarbon radical having from 1 to 12 carbon atoms;
X is a single bond, —(CH2)n— where n=from 1 to 4, phenylene, —CH2—O-phenylene, —CH2—O—CH2—CH(OH)—CH2—, —COO—(CH2)k— where k=from 1 to 6, —CO—NH—, —CO—NH—CR′R″—(CH2)m— where m=from 0 to 3 or —CO—NH—CH2—CH(OH)—CH2—;
R′ is —H, —CH3 or —C2H5 and R″ is —H or —CH3, or water-soluble salts thereof.

### Claim 7 (depends on 6)

The detergent formulation according to claim 6, wherein sulfo-containing monomers are selected from the group consisting of 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-methacrylamido-2-methyl-1-propanesulfonic acid, 3-methacrylamido-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid (2-methyl-2-propene-1-sulfonic acid), allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3-(2-propenyloxy)propanesulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 3-sulfopropyl methacrylate, sulfomethacrylamide, sulfomethylmethacrylamide, and water-soluble salts and esters of the acids mentioned.

### Claim at position 8

8-9. (canceled)

### Claim 10 (depends on 1)

A process for the machine washing of dishware, comprising:
contacting the dishware with a detergent formulation according to claim 1.

### Claim 11 (depends on 1)

The detergent formulation according to claim 1, comprising one or more bleach activators.

### Claim 12 (depends on 1)

The detergent formulation according to claim 1, wherein at least one additive selected from the group consisting of anionic surfactants, zwitterionic surfactants, bleach catalysts, alkali carriers, corrosion inhibitors, defoamers, dyes, fragrances, fillers, organic solvents and water is present.