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Class Information
Number: 508/235
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 olefinic reactant is copolymerized with an unsaturated carboxylic acid anhydride so that the anhydride moiety forms part of the polymer backbone (i.e., addition polymerization)
Description: Compositions wherein an unsaturated carboxylic acid anhydride is copolymerized by addition polymerization with an additional olefinic reactant so that the anhydride moiety forms part of the polymer backbone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6544935 |
Nitrogen-containing esterified carboxy-containing interpolymers having enhanced oxidative stability and lubricants containing them |
Apr. 8, 2003 |
| 6284716 |
Copolymers and their reaction products with amines as fuel and lubricant additives |
Sep. 4, 2001 |
| 6127322 |
Dispersant additives |
Oct. 3, 2000 |
| 6100224 |
Copolymers of ethylene .alpha.-olefin macromers and dicarboxylic monomers and derivatives thereof, useful as additives in lubricating oils and in fuels |
Aug. 8, 2000 |
| 6025308 |
Amine-functionalized polymers |
Feb. 15, 2000 |
| 5719108 |
Lubricating oil additives |
Feb. 17, 1998 |
| 5652202 |
Lubricating oil compositions |
Jul. 29, 1997 |
| 5616153 |
Copolymer dispersants via vinyl terminated propene polymers |
Apr. 1, 1997 |
| 5413725 |
Pour point depressants for high monounsaturated vegetable oils and for high monounsaturated vegetable oils/biodegradable base and fluid mixtures |
May. 9, 1995 |
| 5399275 |
Environmentally friendly viscosity index improving compositions |
Mar. 21, 1995 |
| 5157088 |
Nitrogen-containing esters of carboxy-containing interpolymers |
Oct. 20, 1992 |
| 5055213 |
Additives to lubricants resulting from the condensation of an alkylene polyamine with a copolymer containing vicinal carboxylic groups |
Oct. 8, 1991 |
| 5055212 |
Oil compositions containing alkyl mercaptan derivatives of copolymers of an alpha olefin or an alkyl vinyl ether and an unsaturated alpha, beta-dicarboxylic compound |
Oct. 8, 1991 |
| 5023005 |
Solution of oil and sulfone adduct |
Jun. 11, 1991 |
| 4957650 |
Lubricating oil composition containing dual additive combination for low temperature viscosity improvement |
Sep. 18, 1990 |
| 4767553 |
Lubricating oil containing dispersant viscosity index improver |
Aug. 30, 1988 |
| 4604221 |
Nitrogen-containing esters and lubricants containing them |
Aug. 5, 1986 |
| 4554080 |
Aqueous drilling fluids containing alkenyl succinic anhydrides |
Nov. 19, 1985 |
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