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The effect that a high amount of mineral filler might have on the extraction process of antioxidants from polyethylene and polypropylene was investigated. Extraction of Irganox 1010, Irganox 1076 and Irgafos 168, along with its oxidation product 2,4-di-tert-butylphenol, from freeze ground polyethylene–based (PE–based) and polypropylene–based (PP–based) mineral concentrates of 85 w/w calcium carbonate...
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