| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polycarbonate copolymer having both excellent wear resistance and solution preservability as a binder resin for an electrophotographic photoreceptor. <P>SOLUTION: The polycarbonate copolymer for a binder resin for an electrophotographic photoreceptor is composed of a polycarbonate copolymer including main repeating units of formula (I) (unit corresponding to formula (II) in which X is a single bond) and the formula (II) wherein the molecular ratio is 30/70 to 60/40, and the proportion of the formula (I) units adjoining each other satisfies a specific formula. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
