| abstract |
PCT No. PCT/JP87/00064 Sec. 371 Date Sep. 22, 1987 Sec. 102(e) Date Sep. 22, 1987 PCT Filed Jan. 30, 1987 PCT Pub. No. WO87/04811 PCT Pub. Date Aug. 13, 1987.Disclosed is a toner composition for the electrophotography, which comprises as a main component a urethane-modified polyester resin obtained by reacting a polyester resin with an isocyanate compound, in which the mole-equivalent ratio between the hydroxyl group of the polyester resin and the isocyanate group of the isocyanate compound is within a specific range and the glass transition temperature of the obtained resin is within a specific range. This composition has a good fixing property at a low temperature and a good offset resistance at a high temperature, and this composition is especially excellent in the form of a mixture with a polymer having a relatively low molecular weight. |