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Class Information
Number: 508/232
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
Description: Compositions wherein a carboxylic acid anhydride ring is present in the heterocyclic compound reactant.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7585821 |
Modified detergents and lubricating oil compositions containing same |
Sep. 8, 2009 |
| 7371713 |
Preparation of monomers for grafting to polyolefins, and lubricating oil compositions containing grafted copolymer |
May. 13, 2008 |
| 7361629 |
Additives for lubricants and fuels |
Apr. 22, 2008 |
| 7214649 |
Hydrocarbyl dispersants including pendant polar functional groups |
May. 8, 2007 |
| 7137401 |
Drag reduction using maleated fatty acids |
Nov. 21, 2006 |
| 7049273 |
Hybridized olefin copolymer additives |
May. 23, 2006 |
| 7034079 |
Radial polymers prepared by stabilized free radical polymerization |
Apr. 25, 2006 |
| 6906011 |
Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent |
Jun. 14, 2005 |
| 6869919 |
Lubricating oil compositions |
Mar. 22, 2005 |
| 6743757 |
Dispersants and lubricating oil compositions containing same |
Jun. 1, 2004 |
| 6696393 |
Methods and compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil |
Feb. 24, 2004 |
| 6638897 |
Lubricant oil composition for internal combustion engines (law859) |
Oct. 28, 2003 |
| 6544935 |
Nitrogen-containing esterified carboxy-containing interpolymers having enhanced oxidative stability and lubricants containing them |
Apr. 8, 2003 |
| 6492306 |
Nitrogen containing dispersant-viscosity improvers |
Dec. 10, 2002 |
| 6486101 |
Nitrogen containing dispersant-viscosity improvers |
Nov. 26, 2002 |
| 6355603 |
Thermal conversion products comprised of maleic anhydride and oligoalkenes, derivatives of the thermal conversion products with amines or alcohols and the use thereof |
Mar. 12, 2002 |
| 6300288 |
Functionalized polymer as grease additive |
Oct. 9, 2001 |
| 6265359 |
Imide-Diurea and imide-urethane urea grease thickeners and organic solvent free process for preparation thereof |
Jul. 24, 2001 |
| 6265358 |
Nitrogen containing dispersant-viscosity improvers |
Jul. 24, 2001 |
| 6255258 |
Dispersant additive |
Jul. 3, 2001 |
| 6127322 |
Dispersant additives |
Oct. 3, 2000 |
| 6077455 |
Automatic transmission fluid of improved viscometric properties |
Jun. 20, 2000 |
| 6030929 |
Mixed carboxylic compositions and derivatives and use as lubricating oil and fuel additives |
Feb. 29, 2000 |
| 5958848 |
Low chlorine, low ash crankcase lubricant |
Sep. 28, 1999 |
| 5866519 |
Automatic transmission fluids of improved viscometric properties |
Feb. 2, 1999 |
| 5851966 |
Reaction products of substituted carboxylic acylating agents and carboxylic reactants for use in fuels and lubricants |
Dec. 22, 1998 |
| 5811378 |
Metal containing dispersant-viscosity improvers for lubricating oils |
Sep. 22, 1998 |
| 5792730 |
Lubricating oil succinimide dispersants derived from heavy polyamine |
Aug. 11, 1998 |
| 5744429 |
Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions |
Apr. 28, 1998 |
| 5719108 |
Lubricating oil additives |
Feb. 17, 1998 |
| 5712230 |
Additive compositions having reduced sulfur contents for lubricants and functional fluids |
Jan. 27, 1998 |
| 5705603 |
Polyetheramines with polymers of .alpha., .beta.-unsaturated dicarboxylic acids |
Jan. 6, 1998 |
| 5652202 |
Lubricating oil compositions |
Jul. 29, 1997 |
| 5646099 |
Automatic transmission fluids of improved viscometric properties |
Jul. 8, 1997 |
| 5641732 |
Automatic transmission fluids of improved viscometric properties |
Jun. 24, 1997 |
| 5641733 |
Automatic transmission fluids of improved viscometric properties |
Jun. 24, 1997 |
| 5625004 |
Two-step thermal process for the preparation of alkenyl succinic anhydride |
Apr. 29, 1997 |
| 5562864 |
Lubricating compositions and concentrates |
Oct. 8, 1996 |
| 5484543 |
Amide containing friction modifier for use in power transmission fluids |
Jan. 16, 1996 |
| 5466387 |
Oil-soluble adducts of disuccinimides and anhydrides of unsaturated bicarboxylic aliphatic acids |
Nov. 14, 1995 |
| 5464549 |
Oil soluble dispersants suitable for use in fuels and lubricants |
Nov. 7, 1995 |
| 5454962 |
Fluoroelastomer-friendly crankcase and drivetrain lubricants and their use |
Oct. 3, 1995 |
| 5427703 |
Process for the preparation of polar lubricating base oils |
Jun. 27, 1995 |
| 5427702 |
Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions |
Jun. 27, 1995 |
| 5427700 |
Functional fluid with triglycerides, detergent-inhibitor additives and viscosity modifying additives |
Jun. 27, 1995 |
| 5393441 |
Two-cycle oil additive |
Feb. 28, 1995 |
| 5371130 |
Polymer compositions of improved compatibility in oil |
Dec. 6, 1994 |
| 5368757 |
Lubrication for cold forming of metals |
Nov. 29, 1994 |
| 5360564 |
Dispersant viscosity index improvers |
Nov. 1, 1994 |
| 5336439 |
Salt compositions and concentrates for use in explosive emulsions |
Aug. 9, 1994 |
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