| 摘要 |
<p>The invention relates to an amine mixture comprising (A) a polyisobutene amine PIB(CH2)x(OH)m(NR2R 3)n, where PIB represents a structure derived from polybutene or polyisobutene, R2 and R3 stand for hydrogen, aliphatic or aromatic hydrocarbon residues, primary or secondary, aromatic or aliphatic aminoalkylene residues or polyaminoalkylene residues, polyoxyalkylene residues, heteroaryl or heterocyclylresidues and x=0 or 1, m=0 or 1 and n=1, 2 or 3 and (B) an aliphatic amine R4-NR2R3, where R4 is a C6 to C600 alkyl residue, obtainable by reductive amination of a mixture of (i) the oxoproduct occurring during the hydroformulation of polybutene or polyisobutene and an alkanol R4-OH, or (ii) the epoxide an an alkanol R4-OH occurring during the epoxidation of polybutene or polyisobutene, or (iii) the nitro compound occurring during the reaction of polybutene or polyisobutene with nitric oxide and an alkanol R4-OH having ammonia or an amine HNR2R3. Said amine mixture is suitable for cleaning inlet valves and injection nozzles in gasoline engines and keeping same clean.</p> |
