Anionic surfactants and detergents and cleaning agents containing same

Patent metadata

Field	Value
Publication number	US-11535814-B2
Application number	US-202016805042-A
Country	US
Kind code	B2
Filing date	Feb 28, 2020
Priority date	Aug 28, 2017
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

The invention relates to surfactants of general formula (I) in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5-25 C atoms and X+ represents a charge-balancing cation. The surfactants can be incorporated into detergents or cleaning agents, have excellent technological application properties and can be produced based on renewable raw materials.

First claim

What is claimed is:

1. An anionic surfactant of the general formula (I),

in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X + represents a charge-balancing cation.

2. A method for preparing an anionic surfactant of the general formula (I),

in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X + represents a charge-balancing cation, by a) reaction of furfural with a Grignard compound R—Mg-Hal, in which R has the meaning specified above and Hal is selected from Br and I, b) hydrogenation of the furan ring to form the tetrahydrofuran ring, and c) sulfation using a sulfation agent and optionally neutralization by subsequent reaction with X + OH − , X + HCO − 3 or X + 2 CO 2− 3 , in which X + represents an alkali metal cation or a grouping N + R 1 R 2 R 3 , in which R 1 , R 2 and R 3 represent, independently of one another, hydrogen, an alkyl group having 1 to 6 C atoms, or a hydroxyalkyl group having 2 to 6 C atoms.

3. The method according to claim 2 , wherein R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X + represents a charge-balancing cation, by a) reaction of tetrahydrofurfural with a Grignard compound R—Mg-Hal, in which R has the meaning specified above and Hal is selected from Br and I, and b) sulfation using a sulfating agent and optionally neutralization by subsequent reaction with X + OH − , X + HCO − 3 or X + 2 CO 2− 3 in which X + represents an alkali metal cation or a grouping N + R 1 R 2 R 3 , in which R 1 , R 2 and R 3 represent, independently of one another, hydrogen, an alkyl group having 1 to 6 C atoms, or a hydroxyalkyl group having 2 to 6 C atoms.

4. A washing or cleaning agent containing an anionic surfactant of the general formula (I),

in which R represents a linear or branched alkyl, alkenyl, alkylaryl or alkenylaryl group having 5 to 25 C atoms and X + represents a charge-balancing cation.

5. The agent according to claim 4 , wherein it contains 1 wt. % to 99 wt. % of the surfactant of general formula (I).

6. The agent according to claim 4 , wherein it additionally contains up to 99 wt. % of additional surfactant.

7. The agent according to claim 4 , wherein it is particulate and contains builders or in that it is liquid and contains 1 wt. % to 90 wt. % of water, water-miscible solvent or a mixture of water and water-miscible solvent.

8. The agent according to claim 4 , wherein it is portioned ready for individual dosing in a chamber made of water-soluble material and contains less than 15 wt. % of water.

9. The surfactant according to claim 1 , wherein the compounds of general formula (I), R represents a linear or branched alkyl group having 7-21 C atoms.

10. The agent according to claim 5 , wherein it contains 3 wt. % to 65 wt. % of the surfactant of general formula (I).

11. The agent according to claim 6 , wherein it additionally contains 3 wt. % to 65 wt. % of additional surfactant.

12. The agent according to claim 7 , wherein it contains builders in an amount in the range of 1 wt. % to 60 wt. %, or in that it is liquid and contains 10 wt. % to 85 wt. % of water, water-miscible solvent or a mixture of water and water-miscible solvent.

13. The agent according to claim 8 , wherein it the water-soluble chamber contains a range of 1 wt. % to 12 wt. % of water.

14. The method according to claim 2 , wherein the compounds of general formula (I), R represents a linear or branched alkyl group having 7-21 C atoms.

15. The method according to claim 3 , wherein the compounds of general formula (I), R represents a linear or branched alkyl group having 7-21 C atoms.

16. The agent according to claim 4 , wherein the compounds of general formula (I), R represents a linear or branched alkyl group having 7-21 C atoms.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Kropf Christian
• Klemmer Anna
• Bedrunka Danuta
• Palkovits Regina
• Hausoul Peter
• Kipshagen Lukas

Classifications

• C11D17/06

  Powder; Flakes; Free-flowing mixtures; Sheets · CPC title

• C11D17/042

  Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions · CPC title

• C07D307/12

  Radicals substituted by oxygen atoms · CPC title

• C11D1/146

  Sulfuric acid esters · CPC title

• C11D1/29

  Sulfates of polyoxyalkylene ethers · CPC title