# US 2019/0316062 A1 · Phosphate-free detergent compositions and their applications

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- Number: US 2019/0316062 A1
- Document ID: US20190316062A1
- Status: Published application
- Kind: A1
- Application number: 16/345,553
- Filed: 2017-10-16
- Published: 2019-10-17
- Earliest claimed: 2016-10-26
- Assignees: BASF SE
- Applicants: BASF SE
- Inventors: Alejandra Garcia Marcos; Hans-Christian Raths; Heike Weber; Stephan Hueffer; Rainer Eskuchen; Gerhard Hermanns; Christian Eidamshaus
- Web page: https://patentgrep.com/patent/US20190316062A1

## CPC

- C11D 3/32: Amides; Substituted amides
- C08L 29/02: Homopolymers or copolymers of unsaturated alcohols (C08L29/14 takes precedence)
- C11D 1/528: {Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group (ethers C11D1/526)}
- C11D 1/72: Ethers of polyoxyalkylene glycols
- C11D 3/2086: {Hydroxy carboxylic acids-salts thereof}
- C11D 3/33: Amino carboxylic acids
- C11D 17/06: Powder; Flakes; Free-flowing mixtures; Sheets
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Provided herein is a phosphate-free detergent composition including at least one additive with a melting point in the range of from 40 to 60° C. and at least one amide group in the range of from 5 to 150 alkylene oxide groups per molecule.

## Claims

### Claim 1

Phosphate-free detergent composition comprising:
(A) at least one additive according to general formula (I)
R1—CO—NH—CH2CH2—O—(AO)x—CH2CH2—NH—CO—R2 (I)
wherein
R1, R2 are the same or different and selected from C5-C21-alkyl and C6-C20-alkenyl,
x is in the range of from 5 to 150, and
AO is selected from identical or different alkylene oxides, selected from —CH2—CH2—O, —(CH2)3—O, —(CH2)4—O, —CH2CH(CH3)—O, —CH(CH3)—CH2—O—, and —CH2CH(n-C3H7)—O,
wherein said additive (A) has a melting point in the range of from 40 to 60° C.

### Claim 2 (depends on 1)

Detergent composition according to claim 1 wherein all AO in formula (I) are identical and CH2—CH2—O.

### Claim 3 (depends on 1)

Detergent composition according to claim 1, wherein, in said additive (A) according to general formula R1 and R2 are identical and selected from n-C6-C18-alkyl.

### Claim 4 (depends on 1)

Detergent composition according to claim 1, wherein said detergent composition further comprises:
(B) a chelating agent selected from citric acid and aminocarboxylic acid diacetates and aminosuccinates and their respective alkali metal salts.

### Claim 5 (depends on 4)

Detergent composition according to claim 4 wherein chelating agent (B) is selected from alkali metal salts of iminodisuccinic acid (IDS), methylglycine diacetic acid (MGDA), and glutamic acid diacetic acid (GLDA).

### Claim 6 (depends on 4)

Detergent composition according to claim 4, wherein said detergent composition comprises:
in the range of from 0.5 to 10% by weight of additive (A), and
in the range of from 1 to 50% by weight chelating agent (B),
the percentages referring to the total solids content of the detergent composition.

### Claim 7 (depends on 1)

Detergent composition according to claim 1 wherein said additive (A) is used in combination with at least one non-ionic surfactant according to formula (V)
or (V a)
R8—CH(OH)—CH2—O—(AO)r—A1—O—(AO)r—CH2—H(OH)—R8 (V a)
wherein
R5 is identical or different and selected from hydrogen and linear C1-C10-alkyl,
R7 is selected from C8-C22-alkyl, branched or linear,
R8 is selected from C1-C18-alkyl,
m and n are in the range from zero to 300, where the sum of n and m is at least one,
r is the same or different and selected from 6 to 50
A1 is selected from C2-C10-alkylene, straight, chain, or branched, and
AO is alkylene oxide selected from CH2—CH2—O, —(CH2)3—O, —(CH2)4—O, —CH2CH(CH3)—O, —CH(CH3)—CH2—O—, and CH2CH(n-C3H7)—O.

### Claim 8 (depends on 4)

Method of making a detergent composition according to claim 4, the method comprising mixing
(A) at least one additive according to general formula (I) with a melting point in the range of from 40 to 60° C., and
(B) at least one chelating agent selected from citric acid and aminocarboxylic and their respective alkali metal salts
in the presence or absence of water and removing said water if in the presence of water.

### Claim 9 (depends on 8)

Method according to claim 8, wherein the mixing of additive (A) and chelating agent (B) and, optionally, one or more additional substances, takes place in the presence of water followed by removal of 80 to 100% by weight of said water by spray granulating or spray drying.

### Claim 10

Phosphate-free granule containing:
(A) at least one additive according to general formula (I)
—CO—NH—CH2CH2—O—(AO)x—CH2CH2—NH—CO—R2 (I)
wherein
R1, R2 are the same or different and selected from C5-C21-alkyl and C6-C20-alkenyl,
x is in the range of from 5 to 150, and
AO is selected from identical or different alkylene oxides, selected from —CH2—CH2—O, —(CH2)3—O, —(CH2)4—O, —CH2CH(CH3)—O, —CH(CH3)—CH2—O—, and —CH2CH(n-C3H7)—O,
wherein said additive (A) has a melting point in the range of from 40 to 60° C.

### Claim 11 (depends on 10)

Phosphate-free granule according to claim 10, wherein said phosphate-free granule further contains at least one mixing auxiliary selected from silica gel, silicate, and polyethylene glycol.

### Claim 12 (depends on 10)

A method of using the phosphate-free granule according to claim 10, the method comprising using the phosphate-free granule in the manufacture of a detergent composition.

### Claim 13

(canceled)