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US 5,348,560 AGranted
Carbamates, their preparation and fuels and lubricants containing the carbamates
AssigneeBASF SE
InventorsJuergen Mohr, Knut Oppenlaender, Wolf-Dieter Balzer, Juergen Thomas, Peter Schreyer
Life of this patent
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Abstract
Carbamates having a long-chain N-alkyl radical, a process for the preparation of the carbamates in a conventional manner and fuels and lubricants which contain these carbamates as additives.
Claims5
A carbamate of the following formula I ##STR7## where R.sup.1 is a polybutyl or polyisobutyl radical derived from isobutene and from 0 to 30% by weight of n-butene and having a molecular weight of from 250 to 5,000 R.sup.2 is of the following formula II ##STR8## where R.sup.4 and R.sup.5 are independently hydrogen, methyl or ethyl, R.sup.3 is hydrogen and n is 1.
Dependencies are inferred from the claim text.