Process for the production of oxidized polyisobutenes, their use

Details Process for the production of oxidized polyisobutenes, their use Process for the production of oxidized polyisobutenes, their use

1991-10-07

1992-07-21

Lipman, Bernard

Fuel and related compositions

Liquid fuels

Organic oxygen compound containing

252 54, 525157, 525164, 525381, 525382, C10C 108

Patent

active

051319225

ABSTRACT:
Oxidized polyisobutenes, that is polyisobutenes containing ketonic and carboxylic acid carbonyl groups, are produced by passing through a column of the polyisobutene maintained at a temperature in the range from 140.degree. to 200.degree. C. and at atmospheric or elevated total pressure a molecular oxygen-containing gaseous oxidant at a gas flow rate greater than 10 liters cm.sup.-2 h.sup.-1 measured at the operating pressure. The oxidized polyisobutenes can be reacted for example with an aliphatic polyamine to produce a lubricating oil additive or with an aliphatic polyamide and formaldehyde to produce a fuels additive.

REFERENCES:
patent: 3931074 (1976-01-01), Hu
patent: 4011380 (1977-03-01), West et al.

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