申请人:——
公开号:US20030073771A1
公开(公告)日:2003-04-17
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.
本发明涉及一种提高受阻酚抗氧化剂保质期的工艺,包括将受阻酚抗氧化剂与含硫过氧化物分解剂紧密混合的步骤。本发明者发现,将过氧化物分解剂与受阻酚抗氧化剂混合可降低受阻酚随时间变黄的趋势。这增加了受阻酚的可取性,因为它不会给聚合物体系带来颜色。本发明还涉及一种用上述工艺生产的组合物,以及含有用上述工艺生产的组合物的稳定组合物和添加剂包装。