摘要:
Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions used as seals, for example in automobile engines.
摘要:
Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions used as seals, for example in automobile engines.
摘要:
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
摘要:
Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
摘要:
Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
摘要:
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of pentaerythritol mono-oleate in combination with 15 to 25 millimols per kilogram of zinc O,O-di(2-ethylhexyl)phosphorodithioate.
摘要:
Dispersant lubricating oil additives are prepared by reacting oil-soluble dispersant compositions containing at least one primary or secondary amino group with SO.sub.2.
摘要:
Lubricating oil compositions containing a combination of a polyamino alkenyl or alkyl succinimide modified to contain carbamate functionalities and a Group II metal overbased sulfurized alkylphenol unexpectedly possess little, if any, adverse compatability effects on deposits in diesel engines as compared to lubricating oil compositions containing a combination of an unmodified polyamino alkenyl or alkyl succinimides and a Group II metal overbased sulfurized alkylphenol.
摘要:
Carboxylic amide dispersants are reacted with a fluorine-containing acid reagent selected from fluorophosphoric acid, boron trifluoride, fluoboric acid and the ammonium salts thereof. The reaction of the dispersant with the fluorine-containing acid passivates the dispersant to fluorocarbon compositions used as seals, for example in automobile engines.