Electrophotographic toner

G - Physics – 03 – G

Patent

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96/51, 402/516,

G03G 9/08 (2006.01) G03G 9/087 (2006.01)

Patent

CA 1314421

ABSTRACT Electrophotographic toner is provided which contains 30 - 80% by weight of a polymer per total weight of a resin included in the toner, said polymer is obtained by continuously feeding a vinyl monomer, a polymerization initiator and a solvent into a system of 190 - 230°C to conduct polymerization under a liquid state, and said polymer is a vinyl polymer having a number average molecular weight of 1,000 - 5,000 and a glass transition temperature of 40 - 75°C. The preparation method of the electrophotographic toner is also provided. The toner is excellent in the fixing ability at high duplication speed and lower temperatures.

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