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AssigneeCytec Technology Corp.
InventorsBrent M. Sanders, Darryl R. Kincaid, Sari-Beth Samuels
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The present invention relates to a process for improving the shelf life of a hindered phenol antioxidant comprising the step of intimately mixing the hindered phenol antioxidant with a sulfur-containing peroxide decomposer. The inventors have discovered that mixing the peroxide decomposer with the hindered phenol antioxidant reduces the tendency of hindered phenols to yellow with age. This increases the desirability of the hindered phenol because it will not impart color to polymer systems. The present invention also relates to a composition produced from the process described above, and stabilized compositions and additive packages containing the composition produced from the above-described process.
A process for improving the shelf life of a hindered phenol antioxidant comprising the step of intimately mixing said hindered phenol antioxidant with a sulfur-containing peroxide decomposer selected from a thioester, wherein said intimate mixing is performed during or just subsequent to the manufacture of said hindered phenol antioxidant.
A process for improving the shelf life of a hindered phenol antioxidant comprising the step of mixing said hindered phenol antioxidant with a sulfur-containing peroxide decomposer thereby improving the shelf life of said hindered phenol antioxidant.
Dependencies are inferred from the claim text.