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US 10,975,324 B2Granted
Powder lubricant based on fatty acids and fatty acid glycerides and use thereof
AssigneeHenkel AG & Co. KGaA
InventorsGerrit Jan Odink, Amol Chinchole
Life of this patent
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Abstract
A dry lubricant composition in powder form is provided based on a mixture of alkali metal salts of fatty acids and fatty acid glycerides which is useful in the production of aluminium cans in a deep drawing process, wherein the formed aluminium cans are immediately further processed to yield thin inorganic and/or organic protective coatings. The invention also encompasses the use of the lubricating powder for cold forming of aluminium as well as a process for the deep drawing of aluminium cans.
Claims17
A lubricating powder comprising:
- a) more than 60 wt.-% of at least one alkali metal salt of a fatty acid,
- b) at least one fatty acid mono-, di- or triglyceride,
- wherein the lubricating powder has a weight ratio of compounds according to component a) to compounds according to component b) that is not greater than 30, wherein component b) is selected from mono-, di-, tri-glycerides and combinations thereof which are based on C10-C22 fatty acids, while the glycerides have an iodine value of 50 to 130.
A lubricating powder comprising:
- a) more than 60 wt.-% of at least one alkali metal salt of a fatty acid,
- b) at least one fatty acid mono-, di- or triglyceride,
- wherein the lubricating powder has a weight ratio of compounds according to component a) to compounds according to component b) that is not greater than 30, wherein component b) comprises triglycerides based on alkoxylated fatty acids having a degree of alkoxylation of at least 20, but not more than 50.
A lubricating powder comprising:
- a) more than 60 wt.-% of at least one alkali metal salt of a fatty acid,
- b) at least one fatty acid mono-, di- or triglyceride, and
- c) at least one alkali metal lignosulfonate present in an amount of at least 0.1 wt. %, but less than 5 wt. % based on the total composition of the lubricating powder
- wherein the lubricating powder has a weight ratio of compounds according to component a) to compounds according to component b) that is not greater than 30, wherein component a) comprises alkali metal salts of saturated C10-C22 fatty acids;
- component a) being present in an amount of at least 70 wt.-%, but less than 90 wt.-% based on the total composition of the lubricating powder;
- and
- component b) comprises:
- 1) triglycerides based on alkoxylated fatty acids having a degree of alkoxylation of at least 20, but not more than 50;
- and
- 2) triglycerides based on non-alkoxylated fatty acids based on C14-C20 fatty acids;
- component b) being present in an amount of at least 4 wt.-%, but not more than 20 wt.-% based on the total composition of the powder.
8 more elements
Dependencies are inferred from the claim text.