| 摘要 |
A POWDER COATING COMPOSITION INCORPORATES A WAX IN POST-BLENDED FORM, THE COMPOSITION INCORPORATING THE WAX AND THE SAME COMPOSITION WITHOUT THE WAX BEING SEPARTED, PREFERABLY WIDELY SEPARATED, IN A TRIBOELECTRIC REFERENCE SERIES INDICATIVE OF THE EXTENT TO WHICH POWDER COATING COMPOSITIONS MAY BE DISTINGUISHABLE FROM ONE ANOTHER WHEN ELECTRICALLY CHARGED. THE POWDER COATING COMPOSITION INCORPORATING A WAX IN POST-BLENDED FORM IS ESPECIALLY. SUITABLE FOR COATING ARTICLES HAVING RECESSED PORTIONS. A QUANTITATIVE BASIS IS GIVEN FOR DETERMINING SEPARATION IN THE TRIBOELECTRIC REFERENCE SERIES, AND PREFERRED MINIMUM SEPARATION CRITERIA ARE GIVEN. THE EFFECTS OBTAINABLE USING POST-BLENDED WAX MAY BE ENHANCED BY THE USE, AS FURTHER POST-BLENDED ADDITIVES, OF A COMBINATION OF ALUMINUIUM OXIDE AND ALUMINIUM HYDROXIDE.
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