Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-05-23
2006-05-23
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C528S279000, C528S283000
Reexamination Certificate
active
07049041
ABSTRACT:
The present invention provides a toner binder for developing electrostatic charge images,which binder comprises a polycondensate polyester resin,said polyester resin being a product formed in the presence of at least one titanium-containing catalyst (A) selected from the group consisting of a titanium halides (A1), a titanium diketone enolate (A2), a titanium carboxylate (A3), a titanyl carboxylate (A4), and a titanyl carboxylate salt (A5).Furthermore, the present invention provides a toner binder for developing electrostatic charge images,which binder comprises a polycondensate polyester resin,said polyester resin being a product formed in the presence of at least one tin-containing catalyst (B) selected from the group consisting of dioctyltin oxide (B1), monobutyltin oxide (B2), and dibutyltin oxide (B3), with the content of tributyltin compounds in (B3) being not more than 250 ppm.
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Kato Tomohisa
Kishiki Hiroshi
Sakurai Yoko
Takase Naoki
Yamada Syuji
Chapman Mark A.
Sanyo Chemical Industries Ltd.
Westerman Hattori Daniels & Adrian LLP
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