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Class Information
Number: 508/238
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 > An additional reactant is a polyoxyalkylene compound
Description: Compositions wherein a polyoxyalkylene compound is an additional reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5580484 |
Lubricating oil dispersants derived from hydroxy aromatic succinimide Mannich base condensates of heavy polyamine |
Dec. 3, 1996 |
| 5068047 |
Visosity index improver |
Nov. 26, 1991 |
| 4981604 |
Oxidation and corrosion resistant diesel engine lubricant |
Jan. 1, 1991 |
| 4803003 |
Ethylene copolymer viscosity index improver dispersant additive useful in oil compositions |
Feb. 7, 1989 |
| 4689166 |
Succinic acid esters and hydraulic fluids thereform |
Aug. 25, 1987 |
| 4664834 |
Hydrocarbyl-substituted succinic acid and/or anhydride/amine terminated poly(oxyalkylene) reaction products, and aqueous systems containing same |
May. 12, 1987 |
| 4659492 |
Alkenyl-substituted carboxylic acylating agent/hydroxy terminated polyoxyalkylene reaction products and aqueous systems containing same |
Apr. 21, 1987 |
| 4632769 |
Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions |
Dec. 30, 1986 |
| 4566983 |
Combination of carboxylic acylating agents substituted with olefin polymers of high and low molecular weight mono-olefins, derivatives thereof, and fuels and lubricants containing same |
Jan. 28, 1986 |
| 4401581 |
Nitrogen-containing ashless dispersants and lubricating oil composition containing same |
Aug. 30, 1983 |
| 4317740 |
Water-soluble polyesters |
Mar. 2, 1982 |
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