Process for the oxidation of polyethylene waxes
AssigneeClariant GmbH
InventorGerd Hohner
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Abstract
The present invention relates to a process for the oxidation, in the melt by means of oxygen or oxygen-containing gas mixtures, of ethylene homopolymer and copolymer waxes prepared using metallocene catalysts, wherein the oxidation of the polyethylene wax is carried out with addition of monobasic or polybasic inorganic acids or monobasic or polybasic carboxylic acids having from 1 to 6 or from 2 to 6 carbon atoms. The process gives waxes having a low melt viscosity and a light color.
Claims9
A process for the oxidation, in the melt by means by oxygen or oxygen-containing gas mixtures, of polyethylene waxes prepared using metallocene catalysts, wherein the oxidation of the polyethylene wax is carried out with addition of monobasic or polybasic inorganic acids or monobasic or polybasic carboxylic acids having from 1 to 6 or from 2 to 6 carbon atoms, wherein the acids are added in an amount from 0.01 to 1.0% by weight based on the polyethylene wax.
Dependencies are inferred from the claim text.