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Class Information
Number: 508/241
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 copolymer having ethylene and acyclic olefin monomers (e.g., ethylene-alpha olefin copolymer or ethylene-butylene- -styrene terpolymer grafted with maleic anhydride, etc.)
Description: Compositions wherein a copolymer having acyclic olefin and ethylene monomers is an additional reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6300288 |
Functionalized polymer as grease additive |
Oct. 9, 2001 |
| 6127322 |
Dispersant additives |
Oct. 3, 2000 |
| 6107258 |
Functionalized olefin copolymer additives |
Aug. 22, 2000 |
| 6030929 |
Mixed carboxylic compositions and derivatives and use as lubricating oil and fuel additives |
Feb. 29, 2000 |
| 5811378 |
Metal containing dispersant-viscosity improvers for lubricating oils |
Sep. 22, 1998 |
| 5792730 |
Lubricating oil succinimide dispersants derived from heavy polyamine |
Aug. 11, 1998 |
| 5789355 |
Low volatility lubricating compositions |
Aug. 4, 1998 |
| 5756428 |
High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition |
May. 26, 1998 |
| 5733852 |
Lubricating oil compositions |
Mar. 31, 1998 |
| 5726134 |
Multigrade lubricating compositions |
Mar. 10, 1998 |
| 5674819 |
Carboxylic compositions, derivatives,lubricants, fuels and concentrates |
Oct. 7, 1997 |
| 5429757 |
Multifunctional copolymer and lubricating oil composition |
Jul. 4, 1995 |
| 5401427 |
Viscosity index improver |
Mar. 28, 1995 |
| 5356551 |
Multifunctional viscosity index improver for lubricating oil compositions |
Oct. 18, 1994 |
| 5312556 |
Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one tertiary amine group and degraded ethylene copolymer |
May. 17, 1994 |
| 5290868 |
Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one secondary amine group and degraded ethylene copolymer |
Mar. 1, 1994 |
| 5290461 |
Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties (PT-768) |
Mar. 1, 1994 |
| 5277833 |
Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives |
Jan. 11, 1994 |
| 5275747 |
Derivatized ethylene alpha-olefin polymer useful as multifunctional viscosity index improver additive for oleaginous composition |
Jan. 4, 1994 |
| 5266223 |
Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additives |
Nov. 30, 1993 |
| 5264140 |
Antioxidant-dispersant VI improver additive and lubricating oil composition containing same |
Nov. 23, 1993 |
| 5262075 |
Multifunctional viscosity index improver exhibitng improved low temperature viscometric properties |
Nov. 16, 1993 |
| 5252238 |
Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties |
Oct. 12, 1993 |
| 5238466 |
Fuel additives derived from amido-amines |
Aug. 24, 1993 |
| 5230834 |
Viscosity stable multifunctional viscosity index modifier additives derived from amido amines |
Jul. 27, 1993 |
| 5229020 |
Branched amido-amine dispersant additives |
Jul. 20, 1993 |
| 5229022 |
Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920) |
Jul. 20, 1993 |
| 5225091 |
Ethylene alpha-olefin polymer substituted thiocarboxylic acid lubricant dispersant additives |
Jul. 6, 1993 |
| 5210146 |
Multifunctional viscosity index improver derived from polyamine containing one primary amino group and at least one secondary amino group exhibiting improved low temperature viscometric proper |
May. 11, 1993 |
| 5188745 |
Viton seal compatible dispersant and lubricating oil composition containing same |
Feb. 23, 1993 |
| 5182041 |
Dispersant - anti-oxidant additive and lubricating oil composition containing same |
Jan. 26, 1993 |
| 5167848 |
Grafted viscosity index improver |
Dec. 1, 1992 |
| 5160446 |
Dispersant, VI improver and antioxidant additive, and lubricating oil composition containing same |
Nov. 3, 1992 |
| 5137980 |
Ashless dispersants formed from substituted acylating agents and their production and use |
Aug. 11, 1992 |
| 5118432 |
Dispersant additive mixtures for oleaginous compositions |
Jun. 2, 1992 |
| 5118433 |
Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties |
Jun. 2, 1992 |
| 5112508 |
VI improver, dispersant, and antioxidant additive and lubricating oil composition |
May. 12, 1992 |
| 5110489 |
Water resistant grease composition |
May. 5, 1992 |
| 5110490 |
Water resistant grease composition |
May. 5, 1992 |
| 5068047 |
Visosity index improver |
Nov. 26, 1991 |
| 5055213 |
Additives to lubricants resulting from the condensation of an alkylene polyamine with a copolymer containing vicinal carboxylic groups |
Oct. 8, 1991 |
| 5053151 |
Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties |
Oct. 1, 1991 |
| 5035821 |
End-capped multifunctional viscosity index improver |
Jul. 30, 1991 |
| 5013469 |
VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same |
May. 7, 1991 |
| 4990274 |
Flowable graft and derivatized polymer concentrate and lubricant containing same |
Feb. 5, 1991 |
| 4963275 |
Dispersant additives derived from lactone modified amido-amine adducts |
Oct. 16, 1990 |
| 4952328 |
Lubricating oil compositions |
Aug. 28, 1990 |
| 4941984 |
Lubricating oil compositions and methods for lubricating gasoline-fueled and/or alcohol-fueled, spark-ignited engines |
Jul. 17, 1990 |
| 4873004 |
Lubricating composition |
Oct. 10, 1989 |
| 4863624 |
Dispersant additives mixtures for oleaginous compositions |
Sep. 5, 1989 |
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