| 摘要 |
Wax coating compositions of improved water resistance are prepared by subjecting a molten blend of petroleum wax and an ethylene-vinyl acetate copolymer to controlled oxidation, either in the absence of any oxidation inhibitor, or in the presence of only limited amounts thereof, so as to effect a partial oxidation of the copolymer without significant oxidation of the wax component. Following the oxidation, inhibitor is added to provide commercially effective concentrations thereof.
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