Lubricant compositions and methods for using the same

Patent metadata

Field	Value
Publication number	US-11840676-B2
Application number	US-202217890147-A
Country	US
Kind code	B2
Filing date	Aug 17, 2022
Priority date	Dec 13, 2016
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

A lubricant composition with improved stability and tolerance for water hardness comprises a synthetic wax emulsion; an amine derivative; an emulsifier; and a sequestrant. The synthetic wax emulsion may include poly(ethyleneoxide)-based or poly(propyleneoxide)-based wax emulsions. The amine derivative may include alkyl C 12 -C 14 oxy propyl diamine. The lubricant composition can be used for lubricating the passage of a container along a conveyor. The method includes applying the lubricant composition to at least a part of the container or the conveyor in an application cycle, where the application cycle includes a first period of time of dispensing the lubricant composition and a second period of time of not dispensing the lubricant composition.

First claim

What is claimed is:

1. A lubricant emulsion composition comprising:
a synthetic wax having a molecular weight of 5,000 to 60,000;
an amine or amine derivative; and
an emulsifier.

2. The composition of claim 1 , wherein the synthetic wax is selected from the group consisting of polyethylene-based polymers, polypropylene-based polymers, copolymers of polyethylene and polypropylene, polyethylene-maleic copolymers, and polypropylene-maleic copolymers.

3. The composition of claim 1 , wherein the synthetic wax is polyethylene wax or polypropylene wax.

4. The composition of claim 1 , wherein the amine or amine derivative is selected from the group consisting of fatty amines, ether amines or salts thereof, oleyl diaminopropane, alkyl C12-C14 oxy propyl diamine, coco diaminopropane, lauryl propyl diamine, dimethyl lauryl amine, PEG coco amine, and combinations thereof.

5. The composition of claim 1 , wherein the amine or amine derivative is a diaminoalkane or derivative thereof.

6. The composition of claim 1 , wherein the amine or amine derivative comprises alkyl C12-C14 oxypropyl diamine.

7. The composition of claim 1 , wherein the emulsifier comprises a surfactant.

8. The composition of claim 1 , wherein the emulsifier comprises an anionic surfactant.

9. The composition of claim 1 , wherein the emulsifier is present at about 0.1 to about 10 wt. % of the lubricant composition.

10. The composition of claim 1 , further comprising a sequestrant.

11. The composition of claim 10 , wherein the sequestrant comprises a phosphate.

12. The composition of claim 10 , wherein the sequestrant is present at about 0.01 to about 1 wt. % of the lubricant composition.

13. The composition of claim 1 , the lubricant composition comprising:
from about 5 to about 90 wt. % of the synthetic wax; and
from about 0.5 to about 20 wt. % of the amine or amine derivative.

14. The composition of claim 1 , wherein the synthetic wax and the amine or amine derivative are present at a ratio of from about 2 to about 20 parts synthetic wax for every 1 part of amine or amine derivative.

15. A method for lubricating the passage of a container along a conveyor, the method comprising:
applying a lubricant composition to at least a part of the container or the conveyor during operation, the lubricant composition comprising:
a synthetic wax emulsion comprising a synthetic wax and an emulsifier, the synthetic wax having a molecular weight of about 5,000 to about 60,000; and
an amine or amine derivative.

16. The method of claim 15 , wherein the synthetic wax is selected from the group consisting of polyethylene-based polymers, polypropylene-based polymers, copolymers of polyethylene and polypropylene, polyethylene-maleic copolymers, and polypropylene-maleic copolymers.

17. The method of claim 15 , wherein the synthetic wax emulsion is a polyethylene wax emulsion or polypropylene wax emulsion.

18. The method of claim 15 , wherein the amine or amine derivative is selected from the group consisting of fatty amines, ether amines or salts thereof, oleyl diaminopropane, alkyl C12-C14 oxy propyl diamine, coco diaminopropane, lauryl propyl diamine, dimethyl lauryl amine, PEG coco amine, and combinations thereof.

19. The method of claim 15 , wherein the amine or amine derivative is a diaminoalkane or derivative thereof.

20. The method of claim 15 , wherein the amine derivative comprises alkyl C12-C14 oxypropyl diamine.

21. The method of claim 15 , wherein the emulsifier comprises a surfactant.

22. The method of claim 15 , wherein the emulsifier comprises an anionic surfactant.

23. The method of claim 15 , wherein the emulsifier is present at about 0.1 to about 10 wt. % of the lubricant composition.

24. The method of claim 15 , the lubricant composition further comprising a sequestrant.

25. The method of claim 24 , wherein the sequestrant comprises a phosphate.

26. The method of claim 24 , wherein the sequestrant is present at about 0.01 to about 1 wt. % of the lubricant composition.

27. The method of claim 15 , wherein the lubricant composition is a concentrate comprising:
from about 5 to about 90 wt. % of the wax emulsion; and
from about 0.5 to about 20 wt. % of the amine or amine derivative, and
wherein the method further comprises diluting the lubricant composition with water.

28. The method of claim 15 , wherein the wax emulsion and the amine or amine derivative are present at a ratio of from about 2 to about 20 parts wax emulsion for every 1 part of amine or amine derivative.

29. The method of claim 15 , wherein the method results in a coefficient of friction of about 0.08 to about 0.2 between the container and the conveyor.

30. The method of claim 15 , wherein the lubricant composition is sprayed.

31. The method of claim 15 , wherein the lubricant composition is applied intermittently for a first period of time and not applied for a second period of time, and the first period of time is shorter than the second period of time.

32. The method of claim 15 , wherein the lubricant composition is applied intermittently for a first period of time and not applied for a second period of time, and the first period of time has a first length and the second period of time has a second length, and wherein the first length and the second length have a ratio from 1:1 to 1:100.

33. The method of claim 31 , wherein the first period of time is from about 1 to about 60 seconds and the second period of time is from about 10 to about 3600 seconds.

Assignees

• Ecolab Usa Inc

Inventors

• Ke Wei
• Ji Liang
• Liu Yubao

Classifications

• C10M107/34 Primary

  Polyoxyalkylenes · CPC title

• C10M169/04

  Mixtures of base-materials and additives · CPC title

• C10M173/025 Primary

  for lubricating conveyor belts · CPC title

• C10M2201/085

  Phosphorus oxides, acids or salts · CPC title

• C10M2207/125

  having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids · CPC title