Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1995-05-25
1996-06-25
Lesmes, George F.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
430138, 430111, 430109, 264 433, 264 47, 523512, 523514, 524460, 525902, G03G 500, G03C 172, C08K 304, B01J 1302
Patent
active
055298761
ABSTRACT:
The present invention is directed to an encapsulated toner for heat-and-pressure fixing having a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell formed thereon so as to cover the surface of the core material. An amorphous polyester is used as the main component of the shell, and the amount of the amorphous polyester is normally 3 to 50 parts by weight, based on 100 parts by weight of the core material. The encapsulated toner of the present invention is excellent in offset resistance, fixable even at a low temperature and excellent in blocking resistance when it is used for heat-and-pressure fixing using a heat roller.
REFERENCES:
patent: 4016099 (1977-04-01), Wellman et al.
patent: 4814249 (1989-03-01), Oseto et al.
patent: 5035970 (1991-07-01), Hsieh et al.
patent: 5153093 (1992-10-01), Sacripante et al.
patent: 5264315 (1993-11-01), Tan et al.
Asano Tetsuya
Fujiki Kazuhiro
Kawabe Kuniyasu
Kawaji Hiroyuki
Sasaki Mitsuhiro
Codd Bernard
Kao Corporation
Lesmes George F.
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