Alkyl- oder alkenylsubstituiertes aliphatisches Polyamin
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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Main Author | |
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Format | Patent |
Language | German |
Published |
02.10.1969
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DE1964S092408 |