Class 508/241 - 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.)

Subclass of Class 508 - Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions
Definition: Compositions wherein a copolymer having acyclic olefin and
No. of patents: 75
Last issue date: 11/27/2007

«First «Previous1 2 Next»Last»

Number	Title	Issue Date
7300910	Lubricating oil composition Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer. ...	11/27/2007
7137289	High throughput screening methods for lubricating oil compositions Method for determining dispersancy performance for a plurality of fluid samples of different compositions is provided. Each sample includes one or more base oils of lubricating viscosity and one or more lubricating oil additives and a predetermined amount of an oil-...	11/21/2006
7067049	Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons The present invention relates to formulated lubricant oils derived from a highly paraffinic basestock. The lubricating oils of the present invention achieve the extremely stringent viscosity requirements of SAE “0W” crossgraded engine oils and demonstrate an exc...	06/27/2006
7049273	Hybridized olefin copolymer additives This invention relates to a novel multi-functional fuel and lubricant additive that provides dispersancy properties as well as viscosity index improver credit and, improved fuel economy. The invention further relates to concentrates, and to fuel and lubricating oil ...	05/23/2006
6903163	High melt swell polymer The present invention relates to high melt swell partially neutralized alpha olefin acid copolymers. It also relates to a process for making such high melt swell polymers as well as for covalently crosslinking other polar copolymers including non-neutralized acid co...	06/07/2005
6300288	Functionalized polymer as grease additive A grease of an oil of lubricating viscosity, a polyolefin having grafted acid functionality, a metallic species capable of interacting with the acid functionality of said polyolefin to cause association among the acid groups and a co-thickening agent, has...	10/09/2001
6127322	Dispersant additives The reaction product of (i) an oligomer formed from one monomer or two or more different monomers, the or each monomer being an ethylenically unsaturated compound and said oligomer or each of said monomers being optionally partially or fully esterified, w...	10/03/2000
6030929	Mixed carboxylic compositions and derivatives and use as lubricating oil and fuel additives A carboxylic composition comprising a mixture of hydrocarbon substituted carboxylic acylating agents, said mixture comprising (A) a polyolefin substituted carboxylic acylating agent prepared by reacting a polyolefin with an ଱,ଲ-unsaturated car...	02/29/2000
5811378	Metal containing dispersant-viscosity improvers for lubricating oils A composition of matter suitable for use as a dispersant-viscosity improver for lubricating oil compositions comprises the reaction product of reactants comprising (a) a hydrocarbon polymer grafted with an ଱,ଲ-ethylenically unsaturated carboxy...	09/22/1998
5792730	Lubricating oil succinimide dispersants derived from heavy polyamine A succinimide dispersant, which is the reaction product of hydrocarbons or polymers functionalized by halogenation (e.g. chlorination), thermal "ene" reaction or free radical grafting and derivatized with a heavy polyamine. A heavy polyamine is a mixture ...	08/11/1998
5789355	Low volatility lubricating compositions This invention relates to low volatility 5W20, 5W30, 10W40, 10W50, 15W40 or 15W50 multigrade oils for crankcase lubrication of gasoline and diesel engines, the oils comprising: a) basestock having an average basestock neutral number of not less than 105 f...	08/04/1998
5756428	High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition Hydrocarbyl substituted C4 to C10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C2 to C10 monoolefin, preferably polyisob...	05/26/1998
5733852	Lubricating oil compositions Copolymers and functionalized copolymers comprising ethylene units, in combination with non ethylene copolymer derivatives, give improved engine piston cleanliness when used as lubricating oil additives....	03/31/1998
5726134	Multigrade lubricating compositions Multigrade lubricating oils which have acceptable performance in the VWInTD and Sequence VE engine tests and which are based on an ashless dispersant comprising an oil-soluble polymeric backbone having functional groups in which the hydrocarbon backbone i...	03/10/1998
5674819	Carboxylic compositions, derivatives,lubricants, fuels and concentrates This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described w...	10/07/1997
5429757	Multifunctional copolymer and lubricating oil composition An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one (C3 -C10) alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about ...	07/04/1995
5401427	Viscosity index improver Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous an...	03/28/1995
5356551	Multifunctional viscosity index improver for lubricating oil compositions Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved low temperature viscometric properties containing a viscosity index improving amount of a V.I.-dispersant comprised of the reaction products of: (a) an oil soluble eth...	10/18/1994
5312556	Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one tertiary amine group and degraded ethylene copolymer A multifunctional viscosity index improver for lubricating oils comprising reaction product of: (i) (a) degraded ethylene-alpha-olefin copolymer obtained by degrading undegraded copolymer of ethylene and at least one other alpha-olefin monomer, said undeg...	05/17/1994
5290461	Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties (PT-768) Composition of matter useful as multifunctional viscosity index improver for lubricating oil comprising reaction product of: (i) (a) degraded ethylene-alpha-olefin copolymer obtained by degrading copolymer of ethylene and at least one other alpha-olefin monome...	03/01/1994
5290868	Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one secondary amine group and degraded ethylene copolymer An oil soluble nitrogen containing grafted degraded ethylene copolymers useful as multifunctional viscosity index improvers or modifiers, such as VI improver-dispersant additives. The nitrogen containing grafted degraded ethylene copolymers are grafted wi...	03/01/1994
5277833	Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 10,000 number average molecular weight substituted with mono- or dicarboxylic acid producin...	01/11/1994
5275747	Derivatized ethylene alpha-olefin polymer useful as multifunctional viscosity index improver additive for oleaginous composition The present invention is directed to an oil-soluble oleaginous composition additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of from above 20,000 to about 500,000 number average molecular weight substituted with mono- o...	01/04/1994
5266223	Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additives The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid...	11/30/1993
5264140	Antioxidant-dispersant VI improver additive and lubricating oil composition containing same A lubricating oil composition comprising: (a) a major amount of a base oil having a lubricant viscosity; and (b) a minor amount of, as an antioxidant/dispersant VI improver additive, a lubricant additive....	11/23/1993
5262075	Multifunctional viscosity index improver exhibitng improved low temperature viscometric properties Multifunctional viscosity index improver additives for oleaginous composition comprising reaction products of (i)(a) ethylene-alpha-olefin copolymers grafted with (i)(b) carboxylic acid material, further reacted with (ii) at least one of polyamine, polyol...	11/16/1993
5252238	Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties The present invention is directed to a viscosity index improver for lubricating oil compositions comprising the reaction product of A) a copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer grafted with ethylenically monounsat...	10/12/1993
5238466	Fuel additives derived from amido-amines The present invention is directed to a fuel additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties ...	08/24/1993
5230834	Viscosity stable multifunctional viscosity index modifier additives derived from amido amines The present invention is directed to a composition of matter useful as a multifunctional viscosity improver-dispersant for oleaginous compositions, particularly lubricating oil compositions, comprising at least one adduct or reaction product of (A) ethyle...	07/27/1993
5229022	Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920) The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid...	07/20/1993
5229020	Branched amido-amine dispersant additives The present invention is directed to branched amido-amine dispersant additives useful in oleaginous compositions formed by (a) reacting a first nitrogen-containing compound (e.g., ammonia or an organic amine) with an alpha, beta-unsaturated compound of th...	07/20/1993
5225091	Ethylene alpha-olefin polymer substituted thiocarboxylic acid lubricant dispersant additives The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 10,000 number average molecular weight substituted with thiocarboxylic acid producing moiet...	07/06/1993
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 properties Composition of matter useful as a multifunctional viscosity index improver for lubricating oils comprising reaction product of: (i) (a) copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous ...	05/11/1993
5188745	Viton seal compatible dispersant and lubricating oil composition containing same An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one C3 -C10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15...	02/23/1993
5182041	Dispersant - anti-oxidant additive and lubricating oil composition containing same An additive composition comprising a graft and amine-derivatized polymer having an average molecular weight ranging from about 300 to 3500 which has been reacted with at least one olefinic carboxylic acid acylating agent to form one or more acylating reac...	01/26/1993
5167848	Grafted viscosity index improver Oil soluble grafted ethylene-alpha-olefin copolymer useful as a viscosity modifier for oleaginous compositions comprising: (i) backbone copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous ...	12/01/1992
5160446	Dispersant, VI improver and antioxidant additive, and lubricating oil composition containing same An additive reaction product prepared by the steps comprising reacting a copolymer selected from the group consisting of ethylene copolymers prepared from ethylene and at least one C3 -C10 alpha-monoolefin and, optionally, a polyene ...	11/03/1992
5137980	Ashless dispersants formed from substituted acylating agents and their production and use Succinimides, succinic esters, and succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the gener...	08/11/1992
5112508	VI improver, dispersant, and antioxidant additive and lubricating oil composition An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C3 to C10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from ...	05/12/1992
5110490	Water resistant grease composition A grease composition having improved water resistance is disclosed. More specifically, the addition of an ethylene copolymer having an amine functionality to a base grease comprising a lubricating oil and a water insoluble thickener results in a grease co...	05/05/1992

«First «Previous1 2 Next»Last»

PatentStorm

Quotables

PatentStorm News

Class 508/241 - 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.)