PHOSPHATE-FREE DETERGENT COMPOSITIONS AND THEIR APPLICATIONS

• US 20190316062A1
• Filed: 10/16/2017
• Published: 10/17/2019
• Est. Priority Date: 10/26/2016
• Status: Abandoned Application

• Current Assignee: BASF SE
• Original Assignee: BASF SE
• Inventors: Garcia Marcos, Alejandra, Raths, Hans-Christian, Weber, Heike, Hueffer, Stephan, Eskuchen, Rainer, Hermanns, Gerhard, Eidamshaus, Christian
• Application Number:
  US16/345,553
• Publication Number:
  US 20190316062A1
• Time in Patent Office: Days
• CPC Class Codes: C08L 29/02 Homopolymers or copolymers of unsaturated alcohols C08L29/14 takes precedence
• CPC Class Codes: 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
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 17/06 Powder; Flakes; Free-flowing mixtures; Sheets
• CPC Class Codes: C11D 3/2086 Hydroxy carboxylic acids-salts thereof
• CPC Class Codes: C11D 3/32 Amides; Substituted amides
• CPC Class Codes: C11D 3/33 Amino carboxylic acids

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

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.

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

CH₂—

O.

3. 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.

4. 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.

5. 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).

6. 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.

7. 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)

8. 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.

9. 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.

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.

11. 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.

12. 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.

13. (canceled)