Abstract:
Novel gasoline compositions comprising gasoline and dissolved or dispersed therein small quantities of from about 0.5 to about 100 parts by weight of a driveability-enhancing fluorine-containing polymer per million parts of gasoline will, after carburetion in a multicylinder automobile engine, plate out a fluoropolymeric deposit on the interior surfaces of the intake manifold of the engine thereby establishing on the manifold metal surface a coating of low wettability by any hydrocarbon gasoline component, either aliphatic or aromatic, and significantly improving the driveability performance of the engine. The driveability-enhancing fluorine-containing polymers useful in the gasoline compositions of the invention are characterized in that they must (1) have a critical surface tension of
Abstract:
Combinations of (A) an ethylene backbone polymer such as chlorinated polyethylene, or copolymers of 3 to 40 molar proportions of ethylene with a molar proportion of another monomer such as unsaturated esters, other olefins, vinyl chloride, etc., and (B) a polymer having long chain alkyl groups of 18 to 40 carbon atoms such as polymers of unsaturated esters, are cold flow improvers for low viscosity distillate fuel oils.
Abstract:
Additive combinations of (A) alkyl aromatics, e.g., the condensation product of chlorinated wax and naphthalene, with: (B) ethylene-containing polymers, e.g., copolymers of about 4 to 30 molar proportions of ethylene copolymerized with an unsaturated ester, and/or (C) N-aliphatic hydrocarbyl succinamic acids and/or their amine salts, are cold flow improvers for distillate petroleum fuels.
Abstract:
Jet fuel compositions containing an elastomer additive selected from: A. FLUOROCARBON RUBBER B. CHLOROSULFONATED POLYETHYLENE RUBBER C. POLYSULFIDE RUBBER D. SILICONE RUBBER E. URETHANE RUBBER F. NITRILE RUBBER G. ACRYLIC RUBBER.
Abstract:
Liquid hydrocarbons containing minor amounts of surface active, higher alkyl trimethyl ammonium salts are surprisingly resistant to forming water in oil emulsions and microbiological degradation. Detergent range alkyl trimethyl ammonium chlorides of limited hydrocarbon solubility are especially useful as antihaze and/or antimicrobial agents for heating oils. The water solubility of the new oil additives unexpectedly facilitates their bactericidal effectiveness. Furthermore, antihaze activity of these additives is uniquely unaffected by polar oligomeric additives such as cold flow improvers and detergents also present in the oil products.
Abstract:
A distillate fuel having improved cold flow containing a low molecular weight product obtained on reacting an allyl halide and a C10 to C20 olefin using an aluminum halide as a catalyst, the molar ratio of allyl halide to olefin being from 5:1 to 1:10. This reaction product is characterized by having a molecular weight of from about 550 to about 1,200. A suitable allyl halide is allyl chloride; suitable olefins are decene, dodecene, tetradecene, heptadecene, octadecene and the like.
Abstract:
A method of improving the combustion of a fuel by adding a catalyst or combustion enhancer at an extremely low concentration, preferably in the range of 1 part per 200 million parts fuel to 1 part catalyst per 6 trillion parts fuel. The catalyst or combustion enhancer may be selected from a wide range of soluble compounds. The method may comprise the steps of an initial mixing of the catalyst or enhancer with a suitable solvent and then subsequent dilution steps using solvents or fuel. Suitable solvents include water, MTBE, methylketone, methylsobutylketone, butanol, isopropyl alcohol and other hydrophilic/oleophilic compounds.
Abstract:
A method of improving the combustion of a fuel by adding a catalyst or combustion enhancer at an extremely low concentration, preferably in the range of 1 part catalyst per 200 million parts fuel to 1 part catalyst per 6 trillion parts fuel. The catalyst or combustion enhancer may be selected from a wide range of soluble compounds. The method may comprise the steps of an initial mixing of the catalyst or enhancer with a suitable solvent and then subsequent dilution steps using solvents or fuel. Suitable solvents include water, MTBE, methylketone, methyisobutylketone, butanol, isopropyl alcohol and other hydrophilic/oleophilic compounds.
Abstract:
The present invention provides a diesel fuel oil composition comprising a base fuel which contains normal paraffin compounds having a carbon number of 20 or more at 4.0 wt% or less, has a specific carbon number distribution in the high-boiling normal paraffin compounds, contains sulfur at 0.05 wt% or less, and is incorporated with 0.01 to 0.1 wt% of a flow improver.
Abstract:
The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different conjugated dienes, a copolymer of a p-alkylstyrene and a conjugated diene, or a homopolymer of a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.