Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1994-06-27
1996-03-19
Rosasco, S.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430109, 430122, 430126, G03G 1320
Patent
active
055003184
ABSTRACT:
A toner for developing an electrostatic image is constituted by a binder resin and a colorant The binder resin is characterized by containing at least 20 wt. % of an extraction residue after 6 hours of extraction and below 20 wt. % of an extraction residue after 72 hours of extraction respectively by Soxhlet extraction with tetrahydrofuran. The toner shows a dynamic modulus and a loss modulus, respectively at 200.degree. C. and 0.1 Hz, which are substantially unchanging with time. The properties provide the toner with a harmonization of anti-offset characteristic and fixability as well as stable viscoelasticity under heating.
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World Patents Index Latest, Week 9004, Derwent Public., for JPA 01-303447 (AN 90-025981).
World Patents Index Latest, Week 9005, Derwent Public., AN 90-032529 for JPA-01-309070.
Akashi Yasutaka
Joh Yoshinobu
Tanikawa Hirohide
Taya Masaaki
Uchiyama Masaki
Canon Kabushiki Kaisha
Rosasco S.
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