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Class Information
Number: 508/221
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)
Description: Compositions which contain a compound of indeterminate structure, prepared by the reaction of a compound of known structure having a heterocyclic ring whose members are carbon and at least one hetero atom selected from nitrogen and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 508/227 |
An additional reactant contains phosphorus |
20 |
| 508/242 |
An additional reactant is a phenol, a thiophenol, a carboxylic acid, or salt thereof |
44 |
| 508/229 |
An additional reactant is an aldehyde or ketone |
27 |
| 508/230 |
An additional reactant is an inorganic compound containing heavy metal or aluminum (e.g., ammonium molybdate, etc.) |
19 |
| 508/232 |
The heterocyclic compound reactant contains a carboxylic acid anhydride ring |
107 |
| 508/231 |
The heterocyclic compound reactant contains a five-membered hetero ring with at least three ring hetero atoms (e.g., thiadiazole, benzotriazole, etc.) |
52 |
| 508/222 |
The heterocyclic compound reactant contains a lactone or cyclic carbonate ring |
48 |
| 508/223 |
The heterocyclic compound reactant contains a three- or four-membered hetero ring (e.g., aziridine, epoxy compounds, oxetane, etc.) |
39 |
| 508/226 |
The heterocyclic compound reactant is sulfurized by means of an inorganic sulfurizing agent |
17 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7485603 |
Soot dispersants and lubricating oil compositions containing same |
Feb. 3, 2009 |
| 7371713 |
Preparation of monomers for grafting to polyolefins, and lubricating oil compositions containing grafted copolymer |
May. 13, 2008 |
| 7195828 |
Lubricant for magnetic recording medium and use thereof |
Mar. 27, 2007 |
| 7137401 |
Drag reduction using maleated fatty acids |
Nov. 21, 2006 |
| 7060787 |
Extraction of impurities from grafted polyolefins |
Jun. 13, 2006 |
| 7018960 |
Lubricant composition, method for using and preparing thereof and molecular complex compound used for the same |
Mar. 28, 2006 |
| 6916767 |
Antioxidant amines based on n-(4aniliophenyl) amides antioxidant amines based on n-(4-anilinophenyl) amides |
Jul. 12, 2005 |
| 6869919 |
Lubricating oil compositions |
Mar. 22, 2005 |
| 6800596 |
Lubricating oil dispersant |
Oct. 5, 2004 |
| 6790813 |
Oil compositions for improved fuel economy |
Sep. 14, 2004 |
| 6784142 |
Lubricating oil composition comprising borated and EC-treated succinimides and phenolic antioxidants |
Aug. 31, 2004 |
| 6686321 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Feb. 3, 2004 |
| 6562765 |
Oil compositions having improved fuel economy employing synergistic organomolybdenum components and methods for their use |
May. 13, 2003 |
| 6548458 |
Succinimide-acid compounds and derivatives thereof |
Apr. 15, 2003 |
| 6472353 |
Dispersant-viscosity improvers for lubricating oil compositions |
Oct. 29, 2002 |
| 6462000 |
Use of polymers as antimisting additives in water-based cooling lubricants |
Oct. 8, 2002 |
| 6362136 |
Compositions for extending seal life, and lubricants and functional fluids containing the same |
Mar. 26, 2002 |
| 6300289 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Oct. 9, 2001 |
| 6300288 |
Functionalized polymer as grease additive |
Oct. 9, 2001 |
| 6214775 |
Haze-free post-treated succinimides |
Apr. 10, 2001 |
| 6187721 |
Lubricant for use in diesel engines |
Feb. 13, 2001 |
| 6133206 |
Lubricating oil additives |
Oct. 17, 2000 |
| 6127325 |
Viscosity index improver, process for preparing the same and lubricating oil composition |
Oct. 3, 2000 |
| 6107257 |
Highly grafted, multi-functional olefin copolymer VI modifiers |
Aug. 22, 2000 |
| 6083888 |
Dispersant viscosity index improvers |
Jul. 4, 2000 |
| 5942471 |
Dispersant and antioxidant VI improvers based on olefin copolymers containing phenothiazine and aromatic amine groups |
Aug. 24, 1999 |
| 5874389 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Feb. 23, 1999 |
| 5849047 |
Polymeric dispersants and method of making same |
Dec. 15, 1998 |
| 5843873 |
Lubricants and fluids containing thiocarbamates and phosphorus |
Dec. 1, 1998 |
| 5821205 |
Polyalkylene succinimides and post-treated derivatives thereof |
Oct. 13, 1998 |
| 5814586 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Sep. 29, 1998 |
| 5811378 |
Metal containing dispersant-viscosity improvers for lubricating oils |
Sep. 22, 1998 |
| 5753598 |
Lubricating oil compositions or concentrates therefor providing enhanced water-shedding properties |
May. 19, 1998 |
| 5747596 |
Gel-free alpha-olefin dispersant additives useful in oleaginous compositions |
May. 5, 1998 |
| 5744429 |
Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions |
Apr. 28, 1998 |
| 5721200 |
Process for making a lubricating oil composition |
Feb. 24, 1998 |
| 5705603 |
Polyetheramines with polymers of .alpha., .beta.-unsaturated dicarboxylic acids |
Jan. 6, 1998 |
| 5663126 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Sep. 2, 1997 |
| 5646098 |
Carbonyl containing compounds and their derivatives as multi-functional fuel and lube additives |
Jul. 8, 1997 |
| 5578237 |
Gel-free .alpha.-olefin dispersant additives useful in oleaginous compositions |
Nov. 26, 1996 |
| 5523008 |
Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them |
Jun. 4, 1996 |
| 5506332 |
Preparation of polyacetals, use thereof and novel polyacetals |
Apr. 9, 1996 |
| 5503759 |
Mixtures of alkylated aromatic amines and phenothiazines |
Apr. 2, 1996 |
| 5474693 |
Modifiers for improving clarity of multifunctional VI improver oil compositions |
Dec. 12, 1995 |
| 5474694 |
Lubricating oil composition |
Dec. 12, 1995 |
| 5445750 |
Lubricating oil composition containing the reaction product of an alkenylsuccinimide with a bis(hydroxyaromatic) substituted carboxylic acid |
Aug. 29, 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 |
| 5424366 |
Multifunctional viscosity index improver containing phenothiazine |
Jun. 13, 1995 |
| 5395538 |
Alkylated thiophene lubricants |
Mar. 7, 1995 |
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