Polyolefin substituted polyamines and lubricants containing them

An additive for a lubricating oil comprises an aliphatic or cycloaliphatic polyamine having at least one alkyl or alkenyl group of at least 50 carbon atoms linked to a nitrogen atom. Generally, 0.1 to 10% by weight of additive is added to the oil which may be a mineral lubricating oil, a synthetic l...

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Bibliographic Details
Main Author WAGENAAR ADRIAAN HENDRIK
Format Patent
LanguageEnglish
Published 27.09.1966
Subjects
BLASTING
CHEMISTRY
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
COMPOSITIONS BASED THEREON
FUELS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
LUBRICANTS
LUBRICATING COMPOSITIONS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MECHANICAL ENGINEERING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
WEAPONS
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Summary:An additive for a lubricating oil comprises an aliphatic or cycloaliphatic polyamine having at least one alkyl or alkenyl group of at least 50 carbon atoms linked to a nitrogen atom. Generally, 0.1 to 10% by weight of additive is added to the oil which may be a mineral lubricating oil, a synthetic lubricating oil or a lubricating oil containing a fatty oil. Conventional antioxidants, detergent additives, viscosity-index improvers, anti-corrosives, anti-foaming agents and agents to improve the lubricating effect may be added. In the example, polyisobutenyltetraethylenepentamine is added to a solvent-refined paraffinic lubricating oil distillate and then tested in a diesel engine and a gasoline engine.ALSO:An aliphatic amine suitable for use as a lubricant additive is an aliphatic or cycloaliphatic polyamine having at least one alkyl or alkenyl group of at least 50 carbon atoms linked to a nitrogen atom. It may be prepared by chlorinating a polymer of an alkene having a terminal double bond whose beta carbon atom carries a methyl group, and reacting the resulting alkenyl chloride with a polyamine. In the example, polyisobutylene is chlorinated and the polyisobutenyl chloride obtained is heated with tetraethylenepentamine to produce polyisobutenyl tetraethylenepentamine.
Bibliography:Application Number: US19640352677