摘要:
A process of inhibiting corrosion and/or sweetening hydrocarbons so that they pass the Copper Strip Tarnish Test ASTM D-130 which comprises treating such hydrocarbons with iodine or bromine. These halogens are preferably employed with complexing compounds such as amines, carboxylic acids, alcohols, alkanolamines, ketones, etc.
摘要:
A nitrogen-boron-containing lubricant additive characterized by containing from 0.5 to 2.5 weight percent nitrogen and from 0.050 to 2.0 weight percent boron and a mineral lubricating oil composition containing same.
摘要:
Lube oil, characterized by improved properties, may be prepared containing polymers having pendant N-hydrocarbylcarboxamide groups - typically N-(N',N'-dihydrocarbylaminohydrocarbyl) carboxamide groups.
摘要:
The 9-thiabicyclononane derivatives have the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently tertiary alkyl of 4 to 8 carbon atoms or .alpha.,.alpha.-dimethylbenzyl, and n is 0 to 2.The 9-thiabicyclononanes are prepared by reacting an alkali salt of 2,6-di-tert-alkylphenols with 2,6-dichloro-9-thiabicylo[3.3.1]nonane in a dipolar aprotic solvent. The sulfoxide and sulfones are prepared from the sulfides by oxidation with peracids.The compounds are useful as stabilizers for organic materials, particularly turbine oils and polyolefins, subject to oxidative degradation.
摘要:
Organic material is stabilized by addition of a sulfurized product made by heating a mixture of (a) sulfur and (b) a reaction product formed by reacting in the presence of an alkali metal hydroxide catalyst (i) a mixture of at least two different alkylphenols, each having an unsubstituted ortho and/or para position, and (ii) formaldehyde. Preferably, the reaction product is formed in the presence of a small amount of primary lower alkanol such as methanol. When added to lubricating oil the sulfurized products also impart wear and corrosion inhibiting properties.
摘要:
The oxidative properties of lubricants, especially lubricating oils and greases, are improved by adding thereto an oxidation inhibiting amount of a diarylamine ortho-carboxamide.
摘要:
Lubricant compositions are provided, containing as antiwear agents, a .beta.-thiopropionitrile having the structure R--S--CH.sub.2 CH.sub.2 CN in which R is alkyl, nitriloalkyl, aralkyl, alkaryl, aryl, or benzothiazolyl, mercapto-thiadiazolyl, NCCH.sub.2 CH.sub.2 --X--(CH.sub.2).sub.n where X is oxygen or sulfur and n is a whole number from 1 to 20. Particularly contemplated are lubricating oils and greases containing the aforementioned antiwear agents.
摘要:
New polyfluoroalkyl iodides of the formula ##EQU1## are provided, wherein R.sub.f represents a fluorinated hydrocarbon radical with 3 to 18 carbon atoms, R.sub.1 represents hydrogen or fluorine, R.sub.3 and R.sub.4 each independently represents hydrogen, lower alkyl, hydroxyalkyl, carboxy, carbalkoxy, --(CH.sub.2).sub.p OCOR.sub.2, in which R.sub.2 represents hydrogen or alkyl with 1 to 3 carbon atoms and p is 0 or a whole number from 1 to 3, phenyl and alkylphenyl, or R.sub.3 and R.sub.4 together with the carbon atoms to which they are bonded represent an optionally substituted cycloaliphatic radical with 5 or 6 ring carbon atoms, and n is a whole number from 1 to 3.The new compounds are useful as intermediates for the manufacture of oil- and water-repellents, as oil- and water-repellents per se, as lubricants and as surface active assistants.
摘要:
Additives which are useful in lubricating oils, and particularly in two-cycle engine lubricating oils, comprise an admixture of a major amount of the salt of two equivalents of an N-alkyldiaminoalkane with one equivalent of a dimer dicarboxylic acid and one equivalent of an alkyl acid phosphate, a minor amount of an alkylated hydroxytoluene, and a paraffin oil vehicle.
摘要:
Compositions are provided which are aliphatic sulfurized esters of olefinic mono- or dicarboxylic acids which do not contain any allylic hydrogen atoms. Synergistic mixtures of esters sulfurized with sulfur and with sulfur monochloride and sulfur dichloride are provided. Also provided are lubricating oil compositions comprising (A) a major amount of an oil of lubricating viscosity, and (B) an amount effective to impart extreme-pressure and/or antiwear lubricating properties to said oil of these sulfurized esters.