Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1989-12-19
1994-01-18
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 525440, G03G 900, C08F 2000
Patent
active
052799158
ABSTRACT:
Disclosed is a toner composition for electrophotography which comprises, as a principal component, a urethane-modified polyester resin whose loss tangent (tan .delta.) has a maximum and a minimum both falling within the range of from 0.7 to 2.5, the loss tangent being determined at 150.degree. C. and a frequency ranging from 10.sup.-2 to 10 Hz. The toner composition has excellent low temperature fixing ability and offset resistance as well as a wide range of permitted fixing temperature.
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patent: 3770537 (1973-11-01), Elton
patent: 3984493 (1976-10-01), Kazama et al.
patent: 4164114 (1979-08-01), Yabuki et al.
patent: 4833057 (1989-05-01), Misawa et al.
patent: 4913991 (1990-04-01), Chiba et al.
patent: 5037715 (1991-08-01), Hagiwara et al.
Patent Abstracts of Japan, vol. 12, No. 276 (P-737) (3123) Jul. 30, 1988.
Hagiwara Kazuo
Hisamatsu Kazuo
Ishikawa Keiichi
Misawa Akira
Shin Masaaki
Crossan Stephen
McCamish Marion E.
Mitsui Toatsu Chemicals Inc.
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