Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Reexamination Certificate
2008-04-24
2011-11-29
Le, Hoa (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
C430S109400, C522S093000, C525S442000, C528S297000, C528S300000
Reexamination Certificate
active
08067144
ABSTRACT:
The present invention relates to a polyester having an excellent hydrolysis resistance even when used in a process for producing a toner for electrophotography which includes a step of forming a raw material into particles in an aqueous medium, and a toner for electrophotography which contains the polyester and is excellent in storage stability and fixing property. There are provided a polyester for a toner for electrophotography which is used in a process for producing a toner including a step of forming a raw material component into particles in an aqueous medium or a solution, and produced by polycondensing an alcohol component with a carboxylic acid component containing at least one compound selected from the group consisting of an alkyl succinic acid and an alkenyl succinic acid, as well as a toner for electrophotography which contains the polyester.
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U.S. Appl. No. 12/297,956, filed Oct. 21, 2008, Kubo, et al.
Aoki Katsutoshi
Ikebata Hidehito
Kubo Takashi
Mizuhata Hiroshi
Mukai Takashi
Kao Corporation
Le Hoa
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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