Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1997-11-03
1999-06-08
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430137, G03G 916
Patent
active
059103892
ABSTRACT:
According to the present invention, the method for producing toner for developing an image of electrostatic charge comprises the steps of producing a dispersion liquid of flocculated particles by forming the flocculated particles in a dispersion liquid comprising at least dispersed resin particles, forming combined particles by dispersing a liquid dispersion comprising dispersed fine resin particles into the dispersion liquid of flocculated particles so that the fine resin particles adhere to the flocculated particles and forming toner particles by fusing the combined particles by heating, wherein the molecular weight distribution curve of the resin in the toner particles by a gel permeation chromatography has at least two peaks or shoulders. According to the present invention, it is possible to produce toner for developing an image of electrostatic charge which is particularly superior in chargeability and the stability of the chargeability.
REFERENCES:
patent: 5278020 (1994-01-01), Grushkin et al.
patent: 5370963 (1994-12-01), Patel et al.
patent: 5716746 (1998-02-01), Mikuriya et al.
"Chemistry of Polymer Latices," published by Kohbunshi Kankoh Kai.
Kadokura Yasuo
Matsumura Yasuo
Mizoguchi Takahiro
Morijiri Hisao
Sato Shuji
Fuji 'Xerox Co., Ltd.
Goodrow John
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