| 摘要 |
<p>PURPOSE:To obtain an excellent flow property, heat fixability and offset resistance performance even at the time of high-speed copying by selecting a specific styrene resin and olefin resin and forming a uniform interdispersion state between both resins. CONSTITUTION:The styrene resin having the number reference mol.wt. of a low mol.wt. side peak in a 350 to 100000 range, the maximal value of the mol.wt. at the peak in an 8000 or over and <=160000 range and the content of the high mol.wt. component per 100 pts.wt. low mol.wt. component in a 25 to 40 pts.wt. range and the olefin resin having the storage modulus of elasticity (G') at 150 deg.C within a 1.0X10<3> to 1.0X10<5>dyne/cm<2> range and tangent loss (tandelta) in a 0.3 to 3.0 range are used. The olefin resin is incorporated at a ratio of 1 to 5 pts.wt. per 100 pts.wt. styrene resin. As a result, the high-density filling of the toner into a container is possible without flocculation.</p> |
