| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner binder excellent in fixability and blocking resistance of toner. <P>SOLUTION: The toner binder for electrophotography contains: a linear polyester resin (A) and a nonlinear polyester resin (B) which are mutually incompatible and are produced by poly-condensation of carboxylic acid component (x) and a polyol component (y); and a compatibilizer (C) which is a polyester resin produced by polycondensation of a carboxylic acid component (x') and a polyol component (y'), which is a single 2-20C aliphatic polyol or a single 2-20C alicyclic polyol, and has an SP value "(cal/cm<SP POS="POST">3</SP>)<SP POS="POST">1/2</SP>" between those of (A) and (B). <P>COPYRIGHT: (C)2012,JPO&INPIT |
