Alkaline cleaners based on alcohol ethoxy carboxylates
View Patent ↗An alkaline cleaner composition comprising an alkyl or alkylaryl ethoxy carboxylate, a strong chelating agent and a source of alkalinity, its manufacture and use in removing greasy soil from hard surface areas is described. The compositions are especially effective in removing lime-soaps in such greasy soil especially on institutional and commercial kitchen floors.
1. An alkaline cleaner composition consisting essentially of:
about 0.1–20 wt-% of an alkyl ethoxy carboxylate of the formula:
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is a C 8 –C 22 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is hydrogen, sodium, potassium, lithium, ammonium, or an amine cation;
the amine being monoethanolamine, diethanolamine, or triethanolamine;
about 1–20 wt-% of a chelating agent, the chelating agent being nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, diethylene-triamine pentaacetic acid, or combination thereof; the chelating agent being effective to prevent metal ions such as calcium and magnesium from interfering with the functioning of the detersive component of the composition; and
8 – 30 active wt-% of a source of alkalinity.
2. The composition of claim 1 , wherein n is an integer of 4–10 and m is 1.
3. The composition of claim 2 , wherein R is a C 8 –C 16 alkyl group.
4. The composition of claim 3 , wherein R is a C 12 –C 14 alkyl group, n is 4 and m is 1.
5. The composition of claim 4 , wherein the chelating agent is ethylenediaminetetraacetic acid.
6. The composition of claim 4 , wherein the alkaline source is monoethanolamine, potassium hydroxide, ammonium hydroxide, or mixtures thereof.
7. The composition of claim 1 , wherein the chelating agent is ethylenediaminetetraacetic acid, nitrilotriacetic acid, alkali metal salt thereof, or combination thereof.
8. The composition of claim 1 , wherein the alkaline source is monoethanolamine, diethanolamine, triethanolamine, potassium hydroxide, ammonia, ammonium hydroxide, or mixture thereof.
9. The composition of claim 1 , wherein the alkaline source is potassium hydroxide.
10. The composition of claim 1 , wherein the composition is in solid or liquid form.
11. The composition of claim 1 , comprising amine oxide surfactant.
12. A method for removing soil from hard surfaces comprising:
applying to said surface a diluted alkaline cleaner composition, which consists essentially of in concentrate form:
about 0.1–20 wt-% of an alkyl ethoxy carboxylate of the formula;
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is a C 8 –C 22 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is hydrogen, sodium, potassium, lithium, ammonium, or an amine cation;
the amine being monoethanolamine, diethanolamine or triethanolamine;
about 1–20 wt-% of a chelating agent, the chelating agent being nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid, and
8–30 active wt-% of a source of alkalinity.
13. The method of claim 12 , wherein n is an integer of 4–10 and m is 1.
14. The method of claim 13 , wherein R is a C 8 –C 16 alkyl group.
15. The method of claim 14 , wherein R is a C 12 –C 14 alkyl group, n is 4 and m is 1.
16. The method of claim 15 , wherein the chelating agent is ethylenediaminetetraacetic acid.
17. The method of claim 15 , wherein the alkaline source is monoethanolamine, potassium hydroxide, ammonium hydroxide, or mixtures thereof.
18. The method of claim 12 , wherein the chelating agent is ethylenediaminetetraacetic acid, nitrilotriacetic acid, alkali metal salt thereof, or combination thereof.
19. The method of claim 12 , wherein the alkaline source is monoethanolamine, diethanolamine, triethanolamine, potassium hydroxide, ammonia, ammonium hydroxide, or mixture thereof.
20. The method of claim 12 , wherein the alkaline source is potassium hydroxide.
21. The method of claim 12 , wherein the composition is in solid or liquid form.
22. An alkaline cleaner composition consisting essentially of:
about 0.1–20 wt-% of an alkylaryl ethoxy carboxylate of the formula:
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is R 1
in which R 1 is a C 4 –C 16 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is potassium;
about 1–20 wt-% of a chelating agent selected from the group consisting of nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid; and
2–30 active wt-% of a source of alkalinity.
23. The composition of claim 22 , wherein R is
in which R 1 is a C 6 –C 12 alkyl group.
24. The composition of claim 23 , wherein R 1 is a C 9 alkyl group, n is 10 and m is 1.
25. The composition of claim 22 , wherein n is an integer of 4–10 and m is 1.
26. The composition of claim 22 , wherein the chelating agent is ethylenediaminetetraacetic acid.
27. The composition of claim 22 , wherein the alkaline source is monoethanolamine, potassium hydroxide, ammonium hydroxide, or mixtures thereof.
28. The composition of claim 22 , wherein the chelating agent is ethylenediaminetetraacetic acid, nitrilotriacetic acid, potassium salt thereof, or combination thereof.
29. The composition of claim 22 , wherein the alkaline source is monoethanolamine, diethanolamine, triethanolamine, potassium hydroxide, ammonia, ammonium hydroxide, or mixture thereof.
30. The composition of claim 22 , wherein the alkaline source is potassium hydroxide.
31. The composition of claim 22 , wherein the composition is in solid or liquid form.
32. The composition of claim 22 , comprising amine oxide surfactant.
33. A method for removing soil from hard surfaces comprising:
applying to said surface a diluted alkaline cleaner composition, which consists essentially of in concentrate form:
about 0.1–20 wt-% of an alkylaryl ethoxy carboxylate of the formula;
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is R 1
in which R 1 is a C 4 –C 16 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is potassium;
about 1–20 wt-% of a chelating agent selected from the group consisting of nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid, and
2–30 active wt-% of a source of alkalinity.
34. The method of claim 33 , wherein R is
in which R 1 is a C 6 –C 12 alkyl group.
35. The method of claim 34 , wherein R 1 is a C 9 alkyl group, n is 10 and m is 1.
36. The method of claim 33 , wherein n is an integer of 4–10 and m is 1.
37. The method of claim 33 , wherein the chelating agent is ethylenediaminetetraacetic acid.
38. The method of claim 33 , wherein the alkaline source is monoethanolamine, potassium hydroxide, ammonium hydroxide, or mixtures thereof.
39. The method of claim 33 , wherein the chelating agent is ethylenediaminetetraacetic acid, nitrilotriacetic acid, potassium salt thereof, or combination thereof.
40. The method of claim 33 , wherein the alkaline source is monoethanolamine, diethanolamine, triethanolamine, potassium hydroxide, ammonia, ammonium hydroxide, or mixture thereof.
41. The method of claim 33 , wherein the alkaline source is potassium hydroxide.
42. The method of claim 33 , wherein the composition is in solid or liquid form.
43. An alkaline cleaner composition comprising:
about 0.1–20 wt-% of an alkyl ethoxy carboxylate of the formula:
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is a C 8 –C 22 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is hydrogen, sodium, potassium, lithium, ammonium, or an amine cation;
the amine being monoethanolamine, diethanolamine, or triethanolamine;
about 1–20 wt-% of a chelating agent, the chelating agent being nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, diethylene-triamine pentaacetic acid, or combination thereof; the chelating agent being effective to prevent metal ions such as calcium and magnesium from interfering with the functioning of the detersive component of the composition; and
8–30 active wt-% of a source of alkalinity;
wherein the composition is effective for removing greasy and lime soap soil and for providing reduced drying time.
44. An alkaline cleaner composition comprising:
about 0.1–20 wt-% of an alkylaryl ethoxy carboxylate of the formula:
R—O—(CH 2 CH 2 O) n (CH 2 ) m —CO 2 X
wherein R is R 1
in which R 1 is a C 4 –C 16 alkyl group,
n is an integer of 1–20,
m is an integer of 1–3, and
X is potassium;
about 1–20 wt-% of a chelating agent selected from the group consisting of nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid; and
2–30 active wt-% of a source of alkalinity;
wherein the composition is effective for removing greasy and lime soap soil and for providing reduced drying time.