Quaternary ammonium succinimide salt composition and lubricating oil containing same
AssigneeTexaco Inc.
InventorsKenneth G. Hammond, Harry Chafetz
Life of this patent
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Abstract
A quaternary ammonium succinimide salt composition represented by the formula: ##STR1## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, R.sub.1 is a divalent hydrocarbon radical having from 3-10 carbon atoms, R.sub.2 is hydrogen or an alkyl radical having from 1 to 4 carbon atoms, z has a value from 0 to 5 and X is a halide radical is provided, as well as a method of preparation and a lubricating oil composition containing same.
Claims14
A quaternary ammonium succinimide salt composition represented by the formula:
- ##STR7## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, R.sub.1 is a divalent hydrocarbon radical having from 3 to 10 carbon atoms, R.sub.2 is hydrogen or an alkyl radical having from 1 to 4 carbon atoms, z has a value from 0 to 5 and X is a halide radical.
A quaternary ammonium salt salt composition represented by the formula:
- ##STR8## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, R.sub.2 is hydrogen or a methyl radical and X is a chloride anion.
The compound N-(3-polyisobutenylsuccinimidopropyl)-4-methylpyridinium chloride.
The compound N-(4-polyisobutenylsuccinimidobutyl)pyridinium chloride.
The compound N-(5-polyisobutenylsuccinimidopentyl) 4-methylpyridinium chloride.
A lubricating oil composition comprising a major portion of a mineral lubricating oil and a minor dispersant amount of a quaternary ammonium succinimide salt composition represented by the formula:
- ##STR9## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, R.sub.1 is a divalent hydrocarbon radical having from 3-10 carbon atoms, R.sub.2 is hydrogen or an alkyl radical having from 1 to 4 carbon atoms, z has a value from 0 to 5 and X is a halide radical.
A lubricating oil composition comprising a major portion of a mineral lubricating oil and a minor dispersant amount of a quaternary ammonium salt composition represented by the formula:
- ##STR10## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, R.sub.2 is hydrogen or a methyl radical and X is a chloride anion.
Dependencies are inferred from the claim text.