POLYCARBONATE RESIN, OPTICAL-INFORMATION RECORDING MEDIUM SUBSTRATE MADE OF THE SAME, AND OPTICAL-INFORMATION RECORDING MEDIUM

摘要

A polycarbonate resin having an improved hue is provided, which is suitable for use as a substrate for transfer type optical recording media such as optical disks. The polycarbonate resin is one obtained by reacting starting materials comprising a dihydric phenol, a carbonate material, and a chain terminator comprising a p-(long chain)-substituted phenol (hereinafter referred to as a para isomer), characterized in that the amount of an o-(long chain)-substituted phenol (hereinafter referred to as an ortho isomer) contained as an impurity in the chain terminator used satisfies the following relationship: $(wherein\; "number\; of\; C\text{'}s"\; represents\; the\; number\; of\; carbon\; atoms\; in\; the\; substituent\; organic\; group\; of\; the\; substituted\; phenols).$