Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1989-02-21
1992-12-15
Pal, Asok
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585456, 585457, 585462, 585464, 585465, 585466, 585467, 585468, 564409, 564427, 570182, 570183, 568308, 568328, 568927, 568733, 568736, 568763, 568 67, 568 68, 560103, 560106, 560130, C07C 264, C07C 268, C07C 270
Patent
active
051719150
ABSTRACT:
It is disclosed that aromatic compounds can be alkylated with mono-olefinic HVI-PAO dimer in contact with an acidic catalyst to produce novel alkylated aromatic compositions. It has been found that the novel HVI-PAO dimer alkylated aromatic compositions exhibit an extraordinary combination of properties relating to low viscosity with high viscosity index and low pour point which renders them very useful as lubricant basestock. Further, it has been found that the novel alkylaromatic compositions of the present invention show improved oxidative stability. Depending upon the substituent groups on the aromatic nucleus, useful lubricant additives can be prepared for improved antiwear, antioxidant and other properties. HVI-PAO dimer is prepared as a product or by-product from 1-alkene oligomerization using reduced chromium oxide on solid support.
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Forbus Thomas R.
Pelrine Bruce P.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Pal Asok
Speciale Charles J.
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