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US 6,498,130 B2Granted
Lubricating grease composition and preparation
AssigneeExxonMobil Research and Engineering Company
InventorsMark William Baum, Todd Timothy Nadasdi, Jon Carl Root
Life of this patent
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Abstract
A grease composition having low noise characteristics is prepared by shearing a mixture of a base oil and a thickener for a time sufficient to reduce substantially all of the thickener to particles below 500 microns in size; and then processing the sheared mixture to a grease.
Claims9
A process for preparing a grease having low noise characteristics comprising:
- shearing a mixture of a base oil and a thickener for a time sufficient to reduce substantially all of the thickener particles to below 500 microns in size;
- heating the mixture in the range of about 150° C. to about 175° C.;
- and
- milling the heated mixture to form a homogeneous grease.
1 more element
A process for preparing a grease comprising:
- agitating a thickener and a base oil in a vessel to form a mixture;
- cycling the mixture through a shearing device for a time sufficient to reduce the particle size of the thickener in the base oil to below 500 microns;
- heating the sheared mixture in the range of about 150° C. to about 175° C.;
- and
- milling the heated mixture to form a homogeneous grease.
2 more elements
Dependencies are inferred from the claim text.