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Class Information
Number: 508/237
Name: Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions > Lubricants or separants for moving solid surfaces and miscellaneous mineral oil compositions (e.g., water containing, etc.) > Compound of indeterminate structure, prepared by reacting a heterocyclic compound of known structure; a heterocyclic ring is one having as ring members only carbon and at least one hetero atom selected from nitrogen and chalcogen (oxygen, sulfur, selenium, or tellurium) > The heterocyclic compound reactant contains a carboxylic acid anhydride ring > With organic phosphorus compound
Description: Compositions which contain, in addition to the compound of indeterminate structure prepared by the reaction of the carboxylic acid anhydride reactant, an organic phosphorus compound.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7014694 |
Oil-based additive for corrosion inhibitors |
Mar. 21, 2006 |
| 4981602 |
Lubricating oil compositions and concentrates |
Jan. 1, 1991 |
| 4957649 |
Lubricating oil compositions and concentrates |
Sep. 18, 1990 |
| 4954273 |
Oil formulations containing overbased multi-functional additive |
Sep. 4, 1990 |
| 4952328 |
Lubricating oil compositions |
Aug. 28, 1990 |
| 4941984 |
Lubricating oil compositions and methods for lubricating gasoline-fueled and/or alcohol-fueled, spark-ignited engines |
Jul. 17, 1990 |
| 4938881 |
Lubricating oil compositions and concentrates |
Jul. 3, 1990 |
| 4904401 |
Lubricating oil compositions |
Feb. 27, 1990 |
| 4784782 |
Heterocyclic compounds useful as additives for lubricant and fuel compositions |
Nov. 15, 1988 |
| 4592851 |
Lubricating oil composition and method for providing improved thermal stability |
Jun. 3, 1986 |
| 4253975 |
Aqueous lubricants containing metal hydrocarbyl dithiophosphates |
Mar. 3, 1981 |
| 4105571 |
Lubricant composition |
Aug. 8, 1978 |
| 4101429 |
Lubricant compositions |
Jul. 18, 1978 |
| 4094800 |
Anti-wear lubricating oil compositions |
Jun. 13, 1978 |
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