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Document Title |
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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 ...
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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...
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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...
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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...
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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...
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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 α-olefin and an ethylenically unsaturated dicarboxylic acid and a polyamine and (b) from 10...
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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...
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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 α-olefin and on an ethylenically unsaturated dicarboxylic acid and a polyamine and b) from 10 to 90%...
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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...
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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...
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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...
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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...
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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...
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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...
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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 α,β unsaturated α, γ dicarboxylic compounds, (C)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4416668 |
Antistatic agents for organic liquids
This invention relates to imides of α-olefin-maleic copolymers and to blends of imides of α-olefin-maleic copolymer and α-olefin-sulfur dioxide copolymers; and to systems, such as hydrocarbon...
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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.
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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...
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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...
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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...
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4090946 |
Method of stabilizing mineral oil and its refinery products
The method of stabilizing mineral oil and its refinery products by addition thereto of a small stabilizing amount of alternating copolymers of the type . . . A -- B -- A -- B -- A . . . in which...
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4081456 |
Bis-lactam derivatives
Gamma-alkyl-gamma-butyrolactones having an alkyl substituent of at least 16 carbon atoms in length, preferably at least 25 carbon atoms, are formed by reacting a monoolefin with a carboxylic acid...
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4059574 |
Symmetric azo-bis-mercapto compounds
Symmetric azo-bis-mercapto compounds of the formula ##STR1## wherein R 1 and R 2 are methyl or ethyl, R 3 and R 4 are the same or different alkylene having 1 to 4 carbon atoms, and n is 0 or 1,...
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4040799 |
Cyclohexlamines used as fuel additives
This invention relates to the reductive amination of unsaturated cyclic ketones; to cyclic amines prepared thereby; and to uses thereof. For example, when isophorone is reductively aminated,...
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3920698 |
New organic compounds for use as fuel additives
Useful as gasoline additives are imidic reaction products of a maleic anhydride of the formula ##EQU1## with a linear polyamine of the formula in which R 1 and R 2 are selected from the group...
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3909215 |
Rust inhibitors for hydrocarbon fuels
A novel rust inhibitor mixture for use in hydrocarbon fuels comprising an α-olefin-maleimide copolymer and a hydrocarbyl amine, amide or imidazoline is disclosed. A method of inhibiting rust in...
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3723460 |
POLYMERIC SUCCINIMIDES AND THEIR DERIVATIVES AS FUEL AND MOTOR OIL ADDITIVES
The disclosure describes reaction products useful as multipurpose fuel and motor oil additives which are reaction products of about equal molar portions of (1) an intermediate product produced by...
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3715368 |
SULFONYL SUBSTITUTED TERPOLYMER FUEL DETERGENTS
Terpolymer compositions of relatively low molecular weight having aliphatic 1-olefins of from about eight to 30 carbon atoms, N-substituted maleimides and olefins having a sulfone interrupted...
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3676347 |
LUBRICANT AND HYDROCARBON FUEL COMPOSITIONS
The stability and cleanliness of lubricating oils under severe thermal and oxidative conditions are improved and the electrical conductivity of hydrocarbon fuels is increased by adding thereto a...
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3660057 |
INCREASING LOW TEMPERATURE FLOWABILITY OF MIDDLE DISTILLATE FUEL
The low temperature flowability of a middle distillate petroleum fuel oil, boiling within the range of about 250° to about 700° F. at atmospheric pressure is improved by adding to the fuel oil...
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3640691 |
ENHANCING LOW-TEMPERATURE FLOW PROPERTIES OF FUEL OIL
The response of a middle distillate petroleum fuel oil, boiling within the range of about 250° to about 670° F. at atmospheric pressure and containing normal paraffinic hydrocarbons within the...
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3620696 |
FUEL OIL WITH IMPROVED FLOW PROPERTIES
The response of a middle distillate petroleum fuel oil to the addition of a flow improver, such as a copolymer of ethylene, whereby flow and pumpability at low temperatures are improved, is...
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3533762 |
HYDROCARBON FUELS CONTAINING POLYVALENT METAL HYDROCARBYL PYROPHOSPHATE SALTS AND AMINE ADDUCTS THEREOF
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3511817 |
COPOLYMERS OF VINYL LACTAMS AND METHODS OF MAKING THE SAME
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3506574 |
LUBRICATING OILS AND FUELS CONTAINING GRAFT COPOLYMERS
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3502581 |
ANTIOXIDANT COMPOSITION AND USE THEREOF
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3479327 |
POLYMERS OF VINYL ESTERS AND N-VINYL-3-ALKYL-LACTAMS
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3462249 |
FUEL OIL COMPOSITIONS CONTAINING GRAFTED POLYMERS
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3459518 |
SULFONYL SUBSTITUTED TERPOLYMER FUEL DETERGENTS
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