G - Physics – 03 – G
Patent
G - Physics
03
G
32/12, 314/40, 9
G03G 9/087 (2006.01) G03G 9/08 (2006.01) G03G 9/097 (2006.01) G03G 15/06 (2006.01)
Patent
CA 2029468
A toner for developing electrostatic images is constituted from a binder resin, and a metal salt or a metal complex. Through the various interaction between the components, the toner is provided with unique viscoelastic properties including: a dynamic modulus G'120-200 at 120 - 200 °C of 2x103 or higher to below 5x105 [dyne/cm2] as measured in the frequency range of 1x10-2 _ 1 (Hz); a loss modulus G'' 120-200 at °C of 2x103 or higher to below 5x105 [dyne/cm] as measured in the frequency range of 1x10- - 1 (Hz); a dynamic modulus G'200 at 200 °C and a frequency f satisfying an approximated linear relationship according to the least squares method of: logG'200= alogf + log b, wherein a denotes a positive number of 0.25 or smaller and b denotes a constant; and a ratio (G'200)/(G'120) of below 0.25 wherein (G'200) denotes a dynamic modulus at 200 °C and (G'120) denotes a dynamic modulus at 120 °C respectively at a frequency of 1 (Hz).
Kukimoto Tsutomu
Kuwashima Tetsuhito
Takiguchi Tsuyoshi
Tomiyama Koichi
Yusa Hiroshi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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