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| Number | Title | Issue Date |
| 7279502 | Polyamine analog conjugates and quinone conjugates as therapies for cancers and prostate diseases Peptide conjugates in which cytocidal and cytostatic agents, such as polyamine analogs or naphthoquinones, are conjugated to a polypeptide recognized and cleaved by enzymes such as prostate-specific antigen (PSA) and cathepsin B are provided, as well as compositions... | 10/09/2007 |
| 7175678 | Fuel composition The present invention provides a polymeric a fuel composition comprising (i) a fuel; and (ii) a polymeric compound; wherein the polymeric compound comprises at least one monomer unit of Formula I wherein R1 ... | 02/13/2007 |
| 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 |
| 7067599 | Fuel oil additives and compositions A copolymer comprising units derivable from (A) one or more olefins of defined chain length; and (B) one or more ethylenically unsaturated compounds different from (A). The copolymers are useful as cold flow improvers in fuel oils. ... | 06/27/2006 |
| 6906011 | Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free... | 06/14/2005 |
| 6899115 | Method and filling station for filling a motor vehicle with gaseous fuel The invention relates to a method and a filling station for filling a motor vehicle with gaseous fuel. The fuel is compressed, stored temporarily and expanded in the fuel tank of said vehicle. The fuel has a high water content. According to the invention, oil or an ... | 05/31/2005 |
| 6676715 | Diesel fuel stabilizer There is provided use of a thermal stabiliser for increasing the thermal stability of a cetane improver in a fuel composition comprising (i) a fuel, and (ii) the cetane improver wherein the thermal stabiliser is a compound of the formula wherein H is a gr... | 01/13/2004 |
| 6565616 | Copolymer blends and their use as additives for improving the cold flow properties of middle distillates The invention relates to blends of copolymers containing structural units of olefins, derivatives of dibasic carboxylic acids and, if required, polyolefins and, structural units of ethylene and vinyl esters of tertiary carboxylic acids, and their use as a... | 05/20/2003 |
| 6165672 | Maleimide or alicyclic olefin-based monomers, copolymer resin of these monomers and photoresist using the resin The present invention relates to a novel maleimide- or alicyclic olefin-based monomer, a copolymer resin of these monomers and a photoresist using the copolymer resin. The maleimide-introduced copolymer resin according to the present invention can easily ... | 12/26/2000 |
| 6143043 | Cloud point depressants for middle distillate fuels An additive for distillate and a fuel composition having improved cloud point depressant properties. The additive is incorporated into a major proportion of distillate fuel and is a maleic anhydride -olefin copolymer or a polyimide having the follo... | 11/07/2000 |
| 6107450 | Polyalkylene succinimides and post-treated derivatives thereof A succinimide composition is prepared by reacting a mixture of a polyalkenyl derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions. The polyalkenyl derivative is produced by reacting an unsaturated acidic reagent w... | 08/22/2000 |
| 6071993 | Paraffin dispersants for crude oil middle distillates A mixture contains (a) from 10 to 90% by weight of at least one imide of a copolymer based on an -olefin and an ethylenically unsaturated dicarboxylic acid and a polyamine and (b) from 10 to 90% by weight of at least one reaction product of a poly(... | 06/06/2000 |
| 5849047 | Polymeric dispersants and method of making same This invention concerns the utilization of polymeric compounds generated from Mannich base macromonomers as lubricant oil and fuel additives or intermediates to such additives. Requisite macromonomers are generated via Mannich reaction of high molecular w... | 12/15/1998 |
| 5766273 | Polymer blends and their use as additives for mineral oil middle distillates Polymer blends contain a) from 10 to 90% by weight of an imide of a copolymer based on an -olefin and on an ethylenically unsaturated dicarboxylic acid and a polyamine and b) from 10 to 90% by weight of a copolymer which differs from a) and contain... | 06/16/1998 |
| 5716912 | Polyalkylene succinimides and post-treated derivatives thereof A succinimide composition is prepared by reacting a mixture of an alkenyl or alkylsuccinic acid derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions; then treating the reaction product with either a cyclic carbona... | 02/10/1998 |
| 5476521 | Branched amido-amine dispersant additives (PT-739) 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 ... | 12/19/1995 |
| 5368615 | High molecular weight nitrogen-containing condensates and fuels and lubricants containing same Improved additives/detergents for lubricant and fuel compositions are obtained by condensing a hydroxyalkyl or hydroxyaryl compound with an amine compound. The condensates according to the present invention are produced by the acid catalyzed condensation ... | 11/29/1994 |
| 5294233 | Additive for organic medium or thermoplastic polymer An additive for improving the dispersibility of a particulate substance in an organic medium, a thermoplastic polymer, or a thermosetting resin, is at least one compound having a ##STR1## bond in the molecule, including, for example, compounds having... | 03/15/1994 |
| 5266081 | Multifunctional ashless dispersants A fuel additive is the reaction product of an intermediate reaction product of a hydrocarbon-substituted succinic anhydride and an aminosalicylic acid, preferably a 4-aminosalicylic acid. The intermediate is reacted with an aldehyde, preferably formaldehy... | 11/30/1993 |
| 5160349 | Olefin/maleic anhydride copolymer heterocyclic-azoles as antiwear additives, and fuel compositions A fuel composition contains an antiwear additive comprising the reaction product of heterocyclic compound having antiwear activity such as a triazole e.g. benzotriazole, tolyltriazole, and a copolymer with succinic anhydride moiety, such as an olefin/male... | 11/03/1992 |
| 5112507 | Polymeric dispersants having alternating polyalkylene and succinic groups Novel copolymers of unsaturated acidic reactants and high molecular weight olefins wherein at least 20 percent of the total high molecular weight olefin comprises the alkylvinylidene isomer are useful as dispersants in lubricating oils and fuels and also ... | 05/12/1992 |
| 4900332 | Nitrogenous copolymers, their preparation and use as additives for improving the pour properties of hydrocarbon middle distillates Copolymers of average number molecular weight from about 300 to 5,000 comprising recurrent units originating (A) from alpha olefins, (B) from ,ଲ unsaturated , Ī³ dicarboxylic compounds, (C) from unsaturated acid esters of 1,2-diols, op... | 02/13/1990 |
| 4798612 | Modified succinimides (x) Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides wherein one or more of the nitrogen of the polyamino moiety is sub... | 01/17/1989 |
| 4747850 | Modified succinimides in fuel composition Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.... | 05/31/1988 |
| 4731095 | Nitrogen containing copolymers useful as additives for lowering the cloud point of hydrocarbon middle distillates and compositions containing them Copolymers with nitrogen groups are used as additives to lower the cloud point and improve the filterability limit temperature and the pour point of middle distillates such as gas oils. They are obtained by reacting a compound having a primary amine group... | 03/15/1988 |
| 4659334 | Particulate compositions used in petroleum systems comprising encapsulated materials The invention pertains to particulate compositions comprising a mixture of a low melting point petroleum additive and a higher melting point polymer which mixture is then coated with a high melting point polymer. The mixture of the additive and higher mel... | 04/21/1987 |
| 4575382 | Thermal stabilized vegetable oil extended diesel fuels A middle distillate fuel composition containing thermally-stabilized middle distillate containing a hydrocarbon boiling in the middle distillate boiling range, an extending vegetable oil and a thermal-stabilizing amount of a nitrogen-containing polymer pr... | 03/11/1986 |
| 4556499 | Process for improving the flow properties of mineral oils A process for improving the flow properties of mineral oils by adding a copolymer consisting of from 66 to 99.9 weight % of ethylene and of from 0.1 to 40 weight % of vinylic acid amide and optionally of further comonomers.... | 12/03/1985 |
| 4537601 | Antistats containing acrylonitrile copolymers and polyamines This invention relates to compositions comprising (1) acrylic-type ester-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effectiv... | 08/27/1985 |
| 4522735 | Polyphosphoramidite oligomers and stabilizer compositions thereof Amines are reacted with phosphorous trichloride to form N-dichlorophosphinoamines that are then reacted with a bisphenol in about equimolar amounts to provide polyphosphoramidite oligomers. The polyphosphoramidite oligomers are effective as stabilizers fo... | 06/11/1985 |
| 4518509 | Particulate compositions This invention relates to particulate compositions containing chemical additives for petroleum systems. The particulate compositions when added to petroleum systems gradually dissolve over a period of time, releasing the chemical additive, so as to improv... | 05/21/1985 |
| 4511369 | Copolymers with nitrogen groups, useful as additives for decreasing the cloud point of hydrocarbon middle distillates and compositions containing them Copolymers with nitrogen groups are used as additives to lower the cloud point of middle distillates such as gas oils. They are obtained by reacting a compound having a primary amine group with a copolymer comprising from 20 to 40% of recurrent units from... | 04/16/1985 |
| 4491651 | Antistats containing acrylonitrile copolymers and polyamines This invention relates to compositions comprising (1) acrylic-type ester-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effectiv... | 01/01/1985 |
| 4440625 | Method for minimizing fouling of heat exchanges Hydrocarbon process equipment is protected against fouling by incorporating into the hydrocarbon being processed small amounts of a composition comprised of a dialkylhydroxylamine and an organic surfactant.... | 04/03/1984 |
| 4416668 | Antistatic agents for organic liquids This invention relates to imides of -olefin-maleic copolymers and to blends of imides of -olefin-maleic copolymer and -olefin-sulfur dioxide copolymers; and to systems, such as hydrocarbon fuels, containing such compositions as antist... | 11/22/1983 |
| 4397750 | N-Hydroxyalkyl pyrrolidinone esters as detergent compositions and lubricants and fuel containing same Esters of hydroxyalkylpyrrolidinones and alkenylsuccinic anhydrides are effective detergent additives for hydrocarbyl lubricants and fuels.... | 08/09/1983 |
| 4359325 | Copolymers from acrylate dicarboxylic compounds and diisobutylene as oil additives Copolymers comprising acrylic ester units, dicarboxylic compounds units and diisobutylene units and whose average molecular weight by number is from 500 to 250,000 are useful for improving the cold-flow properties of lube oils and other hydrocarbon oils s... | 11/16/1982 |
| 4261703 | Additive combinations and fuels containing them Three component additive combinations for improving the flow of distillate fuel oils comprise (A) a conventional distillate fuel flow improver (B) a lube oil pour depressant and (C) a polar compound other than certain specified nitrogen compounds which acts as... | 04/14/1981 |
| 4259087 | Antistats containing acrylonitrile copolymers and polyamines This invention relates to compositions comprising (1) -olefin-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effective as... | 03/31/1981 |
| 4146489 | Polyolefin graft copolymers Graft copolymers wherein the backbone polymer is a rubbery, oil soluble ethylene-propylene copolymer or ethylene-propylene diene modified terpolymer and the graft monomer is a C-vinylpyridine or N-vinylpyrrolidone impart dispersant properties to hydrocarb... | 03/27/1979 |
