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US 5,266,225 AGranted
Lubricating oil and lubricating oil additives
AssigneeAction Testing and Consulting Laboratory, Inc.
InventorsDavid Hall, James Hunt
Life of this patent
Estimating the term…
Abstract
Lubricants and lubricant additive compositions which contain as essential ingredients mineral oil and a metallic acid soap. The compositions improve engine efficiency and provide a protective film over sand and grit to prevent engine wear and stoppage.
Claims11
A lubricant and lubricant additive composition essentially consisting of:
- about 10 to 60% by weight of at least one metallic acid soap selected from the group consisting of:
- ##STR2## wherein R is selected from the group consisting of alkyl of 8-16 carbon atoms,
- --H, --OH, --SH, --SO.sub.3 M.sub.1 and --COOM.sub.1
- M is selected from the group consisting of Mo, Pb, Cd and Bi,
- M.sub.1 is selected from the group consisting of alkali metal, alkaline earth metal, Mo, Pb, Cd and Bi, and
- R is selected from the group consisting of --H and --SO.sub.3 M.sub.1
- wherein M, is as hereinbefore described,
- about 20 to 50% by weight of mineral oil,
- about 5 to 25% by weight of polyalkylene glycol, and
- about 0 to 10% by weight of zinc dialkyl phosphate having 2 to 10 carbon atoms.
7 more elements
A lubricant and lubricant additive composition comprising:
- about 15 to 25% by weight of mineral oil,
- about 20 to 30% by weight of mineral seal oil,
- about 28 to 39% by weight of a metallic acid soap selected from the group consisting of lead sulfonaphthanate, cadmium sulfonaphthanate, bismuth sulfonaphthanate and lead, naphthanate
- about 3 to 8% by weight of zinc dimethylthio phosphate and about 10 to 15% by weight of a polyalkylene glycol selected from the group consisting of polypropylene glycol and polyethylene glycol.
1 more element
A lubricant and lubricant additive composition which comprises:
- about 10 to 60% by weight of at least one metallic soap selected from the group consisting of lead naphthanate, lead sulfonaphthanate, cadmium sulfonaphthanate and bismuth sulfonaphthanate,
- about 20 to 50% by weight of mineral oil,
- about 5 to 25% by weight of polyalkylene glycol, and
- about 0 to 10% by weight of zinc dialkyl phosphate having alkyl groups of 8-16 carbon atoms.
1 more element
Dependencies are inferred from the claim text.