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Class Information
Number: 508/236
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 sulfur compound
Description: Compositions wherein a compound that contains sulfur is an additional reactant.


Patents under this class:

Patent Number Title Of Patent Date Issued
7585821 Modified detergents and lubricating oil compositions containing same Sep. 8, 2009
6486101 Nitrogen containing dispersant-viscosity improvers Nov. 26, 2002
6265358 Nitrogen containing dispersant-viscosity improvers Jul. 24, 2001
5898023 Lubricant additive composition for inhibiting viscosity increase and dispersency decrease Apr. 27, 1999
5468403 Phosphorus- and mono- or di-sulfide-containing additives for lubrication oils Nov. 21, 1995
5356999 Multifunctional viscosity index improvers based on polymers containing sulfonamides Oct. 18, 1994
5348673 Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties Sep. 20, 1994
5264139 Antioxidant dispersant antiwear VI improver additive and lubricating oil composition containing same Nov. 23, 1993
5241003 Ashless dispersants formed from substituted acylating agents and their production and use Aug. 31, 1993
5230834 Viscosity stable multifunctional viscosity index modifier additives derived from amido amines Jul. 27, 1993
5118433 Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties Jun. 2, 1992
5110490 Water resistant grease composition May. 5, 1992
5110489 Water resistant grease composition May. 5, 1992
5023005 Solution of oil and sulfone adduct Jun. 11, 1991
4919831 Multifunctional ester-type additives Apr. 24, 1990
4784782 Heterocyclic compounds useful as additives for lubricant and fuel compositions Nov. 15, 1988
4702850 Power transmitting fluids containing esters of hydrocarbyl succinic acid or anhydride with thio-bis-alkanols Oct. 27, 1987
4695390 Reaction product of polyalrylene-substituted polycarboxylic acid acylating agent, polyamine and sulfolene as a dispersant Sep. 22, 1987
4654156 Sulfurized olefins as antiwear additives and compositions thereof Mar. 31, 1987
4632769 Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions Dec. 30, 1986
4620855 Amino sulfonic acid derivatives of carboxylic acid-containing interpolymers, and fuels, lubricants and aqueous systems containing said derivatives Nov. 4, 1986
4382002 Drilling fluids containing an additive composition May. 3, 1983
4248718 Overbased lubricating oil additive Feb. 3, 1981
4234435 Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation Nov. 18, 1980
4216099 Bridged phenol metal salt/halo carboxylic acid condensate additives for lubricants Aug. 5, 1980
4203855 Phenoxide-halo carboxylic acid condensate additives for lubricants May. 20, 1980
4129510 Sulfur-containing compounds and lubricants and fuels containing them Dec. 12, 1978
3945933 Metal complexes of nitrogen compounds in fluids Mar. 23, 1976



 
 
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