摘要:
The detergent properties of a motor fuel are improved by incorporating therein a minor amount of a succinimide oxamide prepared by reacting a polyalkyleneamine succinimide with an amount of oxalic acid sufficient to react with at least 30 percent of the reactive nitrogen moieties on the succinimide chain.
摘要:
Improvements in dispersant viscosity index improvers having antioxidant properties and their use in lubricating oils are disclosed. An ethylene-propylene copolymer rubber has grafted thereon a vinyl monomer having an epoxy group to form a precursor which is condensed with a 5-aminotetrazole by ring opening of the pendent epoxide group.
摘要:
The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a polyoxyethylene sorbitol lanolin of the formula: ##STR1## /wherein n ranges from 14 to 16.
摘要:
The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a polyethylene glycol of the formula:R--CH.sub.2 O--(CH.sub.2 CH.sub.2 O).sub.n Hwherein n ranges from 7 to 40 and R is an alkyl group containing from 11 to 15 carbon atoms.
摘要:
A novel fuel composition containing a hydrocarbon boiling in the gasoline boiling range plus optionally ethanol or methanol plus, as a corrosion inhibitor, a dialkoxylated alkyl polyoxyalkyl primary amine ##STR1## typified by ##STR2##
摘要:
A lubricating oil composition characterized by having a Total Base Number from about 5 to 40 comprising a mineral lubricating oil, an overbased calcium sulfonate, a zinc dihydrocarbyl dithiophosphate, an ethoxylated alkylphenol, an alkenylsuccinimide, a polymethacrylate, an ethylene-propylene copolymer, an alkylated diphenylamine and an N-alkylglycine derivative having the formula: ##STR1## in which R is a hydrocarbyl radical having from about 10 to 25 carbon atoms, R' represents hydrogen or an alkyl, hydroxyalkyl or an aminoalkyl radical having from 1 to 5 carbon atoms and R" represents an alkyl or hydroxyalkyl radical having from 1 to 5 carbon atoms or a --CH.sub.2 --CH.sub.2 --NH).sub.x H radical in which x has a value from 1 to 3, or ##STR2## in which X represents an oxygen atom or a divalent N--R' radical and R and R' have the values noted above.
摘要:
A lubricating oil composition containing a blend of sulfurized calcium alkylphenolate having an alkylphenol to calcium metal rate of about 1.0 to 1.4 and a Ca content of 0.5 to 12 wt. % prepared by: (1) reacting at a temperature between 250.degree. and 410.degree. F. an alkylphenol with calcium alkoxyalkoxide to form a first reaction mixture utilizing between about 45 and 90 wt. % of the stoichiometric amount required to convert the alkylphenol to calcium alkylphenolate: (2) contacting the reaction mixture with sulfur at a temperature between about 440.degree. and 460.degree. F. in the presence of between about 13 and 20 wt. % of a lubricating oil based on the step 2 second reaction mixture, (3) contacting the second reaction mixture with calcium alkoxyalkoxide at a temperature between about 400.degree. and 425.degree. F.; first and second additions totaling about 280 percent of the stoichiometric amount of calcium alkoxyalkoxide to form said calcium alkylphenolate; (4) hydrolyzing the blown mixture by steam sparging with at least 100% of the stoichiometric amount of steam required for complete hydrolysis of the calcium-2-methoxyethoxide to calcium hydroxide at a temperature ranging from 350.degree. to 410.degree. F., blowing the hydrolyzed mixture with about 20% of the stoichiometric amount of CO.sub.2 required for partial carbonation to form a blend of 20% carbonate overbased sulfurized calcium alkylphenolate and 80% hydroxide overbased sulfurized calcium alkylphenolate and adding thereto at a temperature of 340.degree. to 350.degree. F. a diluent oil.
摘要:
A novel fuel composition contains ethanol or gasohol plus, as a corrosion inhibitor, a reaction product of aminotriazole and polyisobutenyl succinic acid anhydride.