Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-03-21
2006-03-21
Acquah, Samuel A. (Department: 1711)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C528S302000, C528S308000, C528S308100, C525S437000, C525S444000, C521S048500, C430S109500
Reexamination Certificate
active
07014970
ABSTRACT:
A resin composition having a softening point of from 80° to 165° C., obtained by reacting a poly C2-4alkylene terephthalate having a melting point of 200° C. or more with a low-molecular weight polyester having a number-average molecular weight of from 400 to 2500; a resin binder for a toner comprising the above resin composition; a toner comprising the above resin binder; a process for preparing a resin composition having a softening point of from 80° to 165° C., comprising the step of reacting a poly C2-4alkylene terephthalate having a melting point of 200° C. or more with a low-molecular weight polyester having a number-average molecular weight of from 400 to 2500. The resin composition can be suitably used as a resin binder for a toner used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing, and the like.
REFERENCES:
patent: 5660963 (1997-08-01), Doujo et al.
patent: 54-128183 (1979-10-01), None
patent: 09-157366 (1997-06-01), None
Derwent Abstracts, JP 8-239409, Sep. 17, 1996.
Derwent Abstracts, JP 8-253596, Oct. 1, 1996.
Japanese Office Action, mailing date Apr. 6, 2005.
Aoki Katsutoshi
Morimoto Eiji
Tachi Hidenori
Acquah Samuel A.
Kao Corporation
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