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US 2008/0269092 A1Published application
Oli composition for cutting and grinding by minimal quantity lubrication system
AssigneeNippon Oil Co., Ltd.
InventorsHideo Yokota, Masanori Ibi, Satoshi Suda
Life of this patent
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Abstract
An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.
Claims5
1-5. (canceled)
An oil composition comprising:
- an ester of at least one polyhydric alcohol selected from dihydric alcohols, glycerin, polyglycerols, trimethylolalkanes and dimers to octamers thereof, 1,2,4-butanetriol, 1,3,5-pentanetriol, 1,2,6-hexanetriol and tetrahydric to decahydric alcohols and at least one monobasic acid selected from fatty acids having 2 to 24 carbon atoms, with the proviso that when the polyhydric alcohol is glycerin the ester is a monoester of glycerin, and a sulfur compound and optionally a phosphorus compound;
- wherein the ester is present in an amount of at least 50% by mass based on the total weight of the composition;
- and
- wherein the oil composition can be used for cutting and grinding by minimal quantity lubrication.
1 more element
An oil composition consisting essentially of:
- an ester of at least one polyhydric alcohol selected from dihydric alcohols, glycerin, polyglycerols, trimethylolalkanes and dimers to octamers thereof, 1,2,4-butanetriol, 1,3,5-pentanetriol, 1,2,6-hexanetriol and tetrahydric to decahydric alcohols and at least one monobasic acid selected from fatty acids having 2 to 24 carbon atoms, with the proviso that when the polyhydric alcohol is glycerin the ester is a monoester of glycerin, and a sulfur compound and optionally a phosphorus compound;
- wherein the ester is present in an amount of at least 50% by mass based on the total weight of the composition;
- and
- wherein the oil composition can be used for cutting and grinding by minimal quantity lubrication.
1 more element
Dependencies are inferred from the claim text.