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US 4,198,285 AGranted
Oxidation of hydrocarbon waxes in the presence of sulfobetaines
AssigneeAshland Oil, Inc.
InventorDonald D. Carlos
Life of this patent
Estimating the term…
Abstract
Hydrocarbon waxes are oxidized to high acid numbers by agitating the liquid hydrocarbon wax with a sulfobetaine while forcing gaseous air or oxygen through the liquid charge.
Claims10
A process for oxidizing liquid hydrocarbon waxes and petrolatums comprising blowing an oxidizing gas through the liquid mass of said hydrocarbon in the presence of a sulfobetaine of the formula:
- ##STR4## wherein R.sub.1 is an alkyl radical having from 10 to 18 carbon atoms or an amido radical of the formula RCONH(CH.sub.2).sub.3 wherein R is an alkyl radical of 10 to 18 carbon atoms, R.sub.2 and R.sub.3 are each alkyl radicals of 1 to about 3 carbon atoms, and R.sub.4 is an alkylene or hydroxyalkylene or hydroxyalkylene radical of about 1 to about 4 carbon atoms.
Dependencies are inferred from the claim text.