| 摘要 |
There is described an electrophotographic toner comprising a resin material and as an additive a sterically hindered phenol, that is a phenol that has its atoms arranged in a particular manner in a molecule and does not undergo an expected chemical reaction due to inhibition by particular atomic groupings. These phenols are effective as thermal stabilizers for toner resins in that they reduce the rate of thermal decomposition and/or act as plasticizers in that they lower the toner melt viscosities and fusing temperatures.
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