Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1990-09-14
1992-06-30
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430109, 430137, G03G 9083, G03G 9087
Patent
active
051262240
ABSTRACT:
The present invention provide a toner for developing an electrostatic image. The toner comprises a binder resin and a coloring agent. The binder resin comprises a styrene type binder resin. The amount of an aldehyde contained in the binder resin is not more than 0.005% by weight based on the weight of the toner. The binder resin is produced by a process comprising the steps of preparing a monomer composition comprising a polymerizable monomer containing at least not less than 50% by weight of a styrene monomer, and a polymerization initiator, and subjecting said monomer composition to suspension polymerization in an aqueous medium having dissolved oxygen in an amount of not more than 2.5 mg/lit to form a styrene polymer or copolymer containing an aldehyde monomer in an amount of not more than 0.01% by weight.
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Journal of Imaging Technology, vol. 11. No. 6, Dec. 1988, pp. 284-285, by T. Narusawa, et al., "Flash Fusible Toner For Laser Printers. "
Hyosu Yoshihiko
Imai Eiichi
Kuwashima Tetsuhito
Nagai Yoshinobu
Ohno Manabu
Canon Kabushiki Kaisha
Martin Roland
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