Fuel and related compositions – Liquid fuels – Organic nitrogen compound containing
Patent
1995-10-23
1998-05-05
Howard, Jacqueline V.
Fuel and related compositions
Liquid fuels
Organic nitrogen compound containing
44426, 44432, 44434, C10L 122
Patent
active
057467862
DESCRIPTION:
BRIEF SUMMARY
This application is a 371 of PCT/EP 941/01113, filed Apr. 11, 1994.
The present invention relates to poly-1-n-alkenylamines and fuel and lubricant compositions which contain poly-1-n-alkenylamines.
Polybutenylamines and their use as fuel and lubricant additives have been known for a very long time and are described, for example, in U.S. Pat. No. 3 275 554 and DE-A-2 125 039.
The prior art polybutenylamines are prepared by halogenation of polybutenes and reaction of the halides with amines. In the preparation of these products, ionic halides are formed and have to be very substantially removed.
There has therefore been no lack of attempts in the prior art to improve the known products, especially since not only does the elimination of the ionic halide require expensive measures but also considerable amounts of halogen always remain in the reaction products (cf. DE-A-2 245 918).
EP 244 616 B1 discloses polyisobutenylamines which are very useful as fuel and lubricant additives. The polyisobutenes required for the preparation of these additives are, however, difficult to obtain owing to the fact that the starting material isobutene is available only by means of expensive processes.
It is an object of the present invention to provide fuel or lubricant compositions which prevent deposits in the intake system of gasoline engines, have a particularly good dispersant effect and furthermore are technically readily obtainable.
We have found that this object is achieved by a fuel or lubricant composition which contains at least one poly-1-n-alkenylamine of the formula I ##STR1## where R.sub.1 is a poly-1-n-alkene radical derived from one or more 1-n-alkenes of 3-6 carbon atoms and 0-50% by weight of ethene and R.sub.2 and R.sub.3 may be identical or different and are each hydrogen, aliphatic or aromatic hydrocarbons, primary or secondary, aromatic or aliphatic aminoalkylene radicals or polyaminoalkylene radicals, polyoxyalkylene radicals, heteroaryl or heterocycyl radicals or, together with the nitrogen atom to which they are bonded, form a ring in which further hetero atoms may be present.
A preferred embodiment of the invention provides a fuel or lubricant composition containing at least one poly-1-n-alkenylamine of the formula I, where R.sub.1 has the is abovementioned meanings and R.sub.2 and R.sub.3 are identical or different and are each hydrogen, alkyl, aryl, hydroxy-alkyl, an aminoalkylene radical of the formula II ##STR2## where R.sub.4 is an alkylene radical and R.sub.5 and R.sub.6 are identical or different and are each hydrogen, alkyl, aryl or hydroxyalkyl, or a polyaminoalkylene radical of the formula III ##STR3## where radicals R.sub.4 are identical or different and the radicals R.sub.5 are identical or different and R.sub.4, R.sub.5 and R.sub.6 have the abovementioned meanings and m is an integer of from 1 to 7, or a polyalkylene radical of the formula IV ##STR4## where the radicals R.sub.4 may be identical or different and have the abovementioned meanings, X is C.sub.1 -C.sub.6 -alkyl or H and n is an integer from 1 to 30, or where R.sub.2 and R.sub.3, together with the nitrogen atom to which they are bonded, form a morpholinyl, pyridyl, piperidyl, pyrrolyl, pyrimidinyl, pyrrolinyl, pyrrolidinyl, pyrazinyl or pyridazinyl radical.
A particularly preferred embodiment provides a fuel or lubricant composition containing at least one poly-1-n-alkenylamine of the formula I ##STR5## where R.sub.1 is a poly-1-alkene radical of 20 to 400 carbon atoms which is derived from one or more 1-n-alkenes of 3-6 carbon atoms and 0-50% by weight of ethene and R.sub.2 and R.sub.3 are identical or different and are each hydrogen, C.sub.1 -C.sub.10 -alkyl, phenyl, naphthyl, C.sub.1 -C.sub.10 -hydroxyalkyl, an aminoalkylene radical of the formula II ##STR6## where R.sub.4 is a C.sub.2 -C.sub.10 -alkylene radical and R.sub.5 and R.sub.6 are identical or different and are each hydrogen, C.sub.1 -C.sub.10 -alkyl, phenyl, naphthyl or C.sub.1 -C.sub.10 -hydroxy-alkyl, a polyaminoalkylene radical of the formula III ##STR7## where t
REFERENCES:
patent: 3275554 (1966-09-01), Wagemaar
patent: 4832702 (1989-05-01), Kummer et al.
Franz Lothar
Guenther Wolfgang
Klimesch Roger
Marczinke Bernd Lothar
Mohr Juergen
BASF - Aktiengesellschaft
Howard Jacqueline V.
Toomer Cephia D.
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