Dishwasher machine detergents with low viscosity surfactants
View Patent ↗Machine dishwashing detergents comprising builder(s), surfactant(s), and optionally further ingredients, and furthermore 0.1 to 50% by weight of one or more nonionic surfactants which, in 80% strength by weight solution in distilled water, have a viscosity (Brookfield, spindle 31, 30 rpm, 20° C.) of less than 450 mPas.
1. A machine dishwashing detergent comprising one or more builders and 0.1 to 50% by weight of one or more nonionic surtactants that, in 80% strength by weight solution in distilled water, have a viscosity of less than 450 mPas, said nonionic surfactants comprising one or more surfactants of the general formula I:
in which R 1 is a straight-chain or branched, saturated or mono- or polyunsaturated C 6-24 -alkyl or -alkenyl radical; each group R 2 and R 3 , independently of one another, is chosen from —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 —CH 3 , CH(CH 3 ) 2 and the indices w, x, y, z, independently of one another, are integers from 1 to 6.
2. The machine dishwashing detergent of claim 1 , wherein the nonionic surfactant(s) have a viscosity of less than 400 mPas.
3. The machine dishwashing detergent of claim 2 , wherein the nonionic surfactant(s) have a viscosity of less than 300 mPas.
4. The machine dishwashing detergent of claim 3 , wherein the nonionic surfactant(s) have a viscosity of less than 250 mPas.
5. The machine dishwashing detergent of claim 4 , wherein the nonionic surfactant(s) have a viscosity of less than 200 mPas.
6. The machine dishwashing detergent of claim 1 , wherein the nonionic surfactant(s), in 90% strength by weight solution in distilled water, have a viscosity of less than 250 mPas.
7. The machine dishwashing detergent of claim 6 , wherein the nonionic surfactant(s), in 90% strength by weight solution in distilled water, have a viscosity of less than 200 mPas.
8. The machine dishwashing detergent of claim 7 , wherein the nonionic surfactant(s), in 90% strength by weight solution in distilled water, have a viscosity of less than 150 mPas.
9. The machine dishwashing detergent of claim 8 , wherein the nonionic surfactant(s), in 90% strength by weight solution in distilled water, have a viscosity of less than 100 mPas.
10. The machine dishwashing detergent of claim 1 , wherein the nonionic surfactant(s) are present in amounts of from 0.5 to 40% by weight.
11. The machine dishwashing detergent of claim 10 , wherein the nonionic surfactant(s) are present in amounts of from 1 to 30% by weight.
12. The machine dishwashing detergent of claim 11 , wherein the nonionic surfactant(s) are present in amounts of from 2.5 to 25% by weight.
13. The machine dishwashing detergent of claim 1 , wherein the nonionic surfactant(s) are present in amounts of from 5 to 20% by weight.
14. The machine dishwashing detergent of claim 1 , wherein R 1 is an alkyl radical having 6 to 24 carbon atoms.
15. The machine dishwashing detergent of claim 14 , wherein R 1 is an alkyl radical having 8 to 20 carbon atoms.
16. The machine dishwashing detergent of claim 15 , wherein R 1 is an alkyl radical having 9 to 15 carbon atoms.
17. The machine dishwashing detergent of claim 1 , wherein R 2 and R 3 are a radical —CH 3 , w and x, independently of one another, are values of 3 or 4 and y and z, independently of one another, are values of 1 or 2.
18. The machine dishwashing detergent of claim 14 , wherein R 2 and R 3 are a radical —CH 3 , w and x, independently of one another, are values of 3 or 4 and y and z, independently of one another, are values of 1 or 2.
19. The machine dishwashing detergent of claim 1 , comprising the builder(s) in amounts of from 5 to 90% by weight.
20. The machine dishwashing detergent of claim 1 , comprising the builder(s) in amounts of from 7.5 to 85% by weight.
21. The machine dishwashing detergent of claim 1 , comprising the builder(s) in amounts of from 10 to 80% by weight.
22. The machine dishwashing detergent of claim 1 , comprising one or more enzymes in amounts of from 0.01 to 15% by weight.
23. The machine dishwashing detergent of claim 22 , comprising one or more enzymes in amounts of from 0.1 to 10% by weight.
24. The machine dishwashing detergent of claim 23 , comprising one or more enzymes in amounts of from 0.5 to 6% by weight.
25. The machine dishwashing detergent of claim 1 , comprising one or more bleaches in amounts of from 1 to 40% by weight.
26. The machine dishwashing detergent of claim 25 , comprising one or more bleaches in amounts of from 2.5 to 30% by weight.
27. The machine dishwashing detergent of claim 26 , comprising one or more bleaches in amounts of from 5 to 20% by weight.