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Class Information
Number: 508/233
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 an alkadiene polymer
Description: Compositions wherein an alkadiene polymer is an additional reactant.


Sub-classes under this class:

Class Number Class Name Patents
508/234 The alkadiene polymer is a terpolymer of ethylene, monoolefin, and alkadiene 23


Patents under this class:

Patent Number Title Of Patent Date Issued
6300288 Functionalized polymer as grease additive Oct. 9, 2001
5672266 Treatment of organic compounds to reduce chlorine level Sep. 30, 1997
5652202 Lubricating oil compositions Jul. 29, 1997
5644001 Resin-free succinimides process of making, and compositions containing same Jul. 1, 1997
5641734 Biodegradable chain bar lubricant composition for chain saws Jun. 24, 1997
5567344 Gel-free dispersant additives useful in oleaginous compositions, derived from functionalized and grafted alpha-olefin polymers Oct. 22, 1996
5556923 Continuous process for producing adducted EPM or EPDM oil solution Sep. 17, 1996
5516849 Continuous process for producing adducted EPM or EPDM oil solution May. 14, 1996
5314632 Combining dispersant viscosity index improver and detergent additives for lubricants May. 24, 1994
5264140 Antioxidant-dispersant VI improver additive and lubricating oil composition containing same Nov. 23, 1993
5264139 Antioxidant dispersant antiwear VI improver additive and lubricating oil composition containing same Nov. 23, 1993
5182041 Dispersant - anti-oxidant additive and lubricating oil composition containing same Jan. 26, 1993
5055213 Additives to lubricants resulting from the condensation of an alkylene polyamine with a copolymer containing vicinal carboxylic groups Oct. 8, 1991
5049294 Modified dispersant V.I. improver Sep. 17, 1991
5023005 Solution of oil and sulfone adduct Jun. 11, 1991
4952328 Lubricating oil compositions Aug. 28, 1990
4921625 Method for preparing functionalized block copolymers May. 1, 1990
4780228 Viscosity index improver--dispersant additive useful in oil compositions Oct. 25, 1988
4737303 Sulfomaleation of organic molecules and polymers Apr. 12, 1988
4735736 Viscosity index improver-dispersant additive Apr. 5, 1988
4693838 Multifunctional viscosity index improver Sep. 15, 1987
4670173 Oil-soluble reaction products of an acylated reaction product, a polyamine, and mono-functional acid Jun. 2, 1987
4382009 Hydraulic fluid containing water and an .alpha.,.omega.-polybutadienedicarboxylic acid May. 3, 1983
4161452 Polyolefinic copolymer additives for lubricants and fuels Jul. 17, 1979
4160739 Polyolefinic copolymer additives for lubricants and fuels Jul. 10, 1979
4141847 Star-shaped polymer reacted with dicarboxylic acid and amine as dispersant viscosity index improver Feb. 27, 1979
4120803 Lubricant composition containing a dispersant which is a condensation product of a copolymer, polyamine and a polycarboxylic acid Oct. 17, 1978
4077893 Star-shaped dispersant viscosity index improver Mar. 7, 1978
4033888 Dispersant VI improver Jul. 5, 1977



 
 
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