Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1991-10-23
1993-07-13
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...
430137, 524457, 524458, 524460, G03G 908
Patent
active
052272737
ABSTRACT:
A binder for toner comprising a styrene/(meth)acrylate copolymer obtained by polymerizing polymerizable vinyl monomers comprising styrene and/or its derivative and a (meth)acrylate by suspension polymerization of 0.001-3 wt. %, based on the total weight of the monomers used, of at least one polyvinyl alcohol having a degree of saponification of 75-98% and 1.0-10 wt. %, based on the total weight of the monomers used, of at least one azo initiator. According to the present invention, there is provided a binder for a toner which produces copied images having excellent stability of image quality (life) even after a large number of times of copying.
REFERENCES:
patent: 4652511 (1987-03-01), Ueda et al.
patent: 4845007 (1989-07-01), Hyosu et al.
Funato Ryo
Inagaki Motoshi
Kubo Shinji
Takahiro Syuji
Yoshida Keiji
McCamish Marion E.
Mitsubishi Rayon Co. Ltd.
Rosasco S.
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