摘要:
Described herein is an unsaturated fluorinated compound of formula (I) where X is O or N; Y is F or H; Z is F or CF3; and A is F or CF3 wherein when X is O, then n is 1, Y is H, Z is F, A is F, and Rf is a linear or branched perfluorinated alkyl group comprising 1 to 10 carbon atoms and optionally comprising at least one catenated O or N; and when X is N, then n is 2 and each Rf group are (i) independently selected from a linear or branched perfluorinated alkyl group comprising 1 to 8 carbon atoms and optionally comprising at least one catenated O or N; or (ii) bonded together to form a ring structure comprising 4 to 8 carbon atoms and optionally comprising at least one catenated O or N with the proviso that when Z is CF3 then A is F and when A is CF3 then Z is F and methods of making and using the same.
摘要:
Methods, a lubricant composition, and a fuel composition for lubricating a two-stroke internal combustion engine include a lubricant composition that contains (A) an oil of lubricating viscosity, (B) an additive composition, and (C) a normally liquid solvent having a kinematic viscosity of less than 5 cSt at 100° C. The lubricant composition improves the cleanliness of a power valve of a two-stroke engine.
摘要:
Disclosed is a method for improving compatibility of a fluorocarbon elastomer seal with a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more fluorocarbon elastomer compatibility improving agents of the general formula Si—X4 or a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or dialkyl amino-containing group.
摘要:
The present technology is related to branched amine containing quaternary ammonium salts, and the use of such quaternary ammonium salts in fuel and oil compositions.
摘要:
Disclosed herein are low and medium sulfur, phosphorus, and sulfated ash (low and medium "SAPS") lubricating oil compositions for providing enhanced piston cleanliness in an internal combustion engine. The lubricating oil compositions comprise at least one Mannich reaction product prepared by the condensation of a poly isobutylsubstituted hydroxyaromatic compound, wherein the polyisobutyl group is derived from polyisobutene containing at least 70 wt. % methylvinylidene isomer and has a number average molecular weight of from 400 to 2,500, an aldehyde, an amino acid or ester derivative thereof, and an alkali metal base.
摘要:
A lubricating oil additive composition comprising at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; at least one polyalkenyl succinimide; a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and a second phenate detergent having a TBN of the actives of greater than about 200 to about 400.
摘要:
The invention relates to a method of lubricating the bearings of solid fuel pulverizers, for example, coal pulverizers. The method involves supplying to the bearings a lubricating composition designed to have superior performance compared to conventional coal pulverizer bearing lubricants. The invention also provides a bearing lubricant for a coal pulverizer as well as its use in coal pulverizing equipment to improve the service life and/or durability of bearings in coal pulverizing equipment. The invention also provides an additive composition for use in a bearing lubricant for a coal pulverizer, as well as the use of the additive composition to improve the service life and/or performance of the bearing lubricant.
摘要:
Verwendung von mehrkernigen phenolischen Verbindungen mit bis zu 20 Benzolkernen pro Molekül, welche durch Umsetzung eines Tetrahydrobenzoxazins I
wobei R 1 einen Hydrocarbylrest bezeichnet und R 2 , R 3 , R 4 und R 5 unabhängig voneinander für Wasserstoffatome, Hydroxylgruppen oder Hydrocarbylreste stehen, mit einem oder mehreren der gleichen oder verschiedener Phenole II
wobei R 7 , R 8 , R 9 und R 10 unabhängig voneinander für Wasserstoffatome, Hydroxylgruppen oder Hydrocarbylreste stehen, und/oder mit einem oder mehreren der gleichen oder verschiedener Tetrahydrobenzoxazine I erhältlich sind, mit der Maßgabe, dass mindestens einer der Substituenten 13 bis 3000 Kohlenstoffatome aufweist und die übrigen Substituenten, wenn sie für Hydrocarbylreste stehen, jeweils 1 bis 20 Kohlenstoffatome aufweisen, Dispergatoren zur Verhinderung von Ablagerungen im Kraftstoffsystem und/oder Verbrennungssystem von Turbinen und von Otto- oder Dieselmotoren.