Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Reexamination Certificate
2005-09-06
2005-09-06
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
C430S137170, C430S137120
Reexamination Certificate
active
06939656
ABSTRACT:
Methods for producing a polymerized toners are provided, where, a dispersion including colored polymer particles obtained by polymerizing a polymerizable composition is treated stably in the process of reducing the remaining monomer, the resultant polymerized toners include a sufficiently low content of remaining monomer, and the resultant polymerized toners have excellent properties and are useful as developers for printing and copying. In the process of reducing the remaining monomer, the dispersion of the colored polymer particles is treated by stripping in the presence of a specific antifoaming agent.
REFERENCES:
patent: 3763021 (1973-10-01), Householder
patent: 4904730 (1990-02-01), Moore et al.
patent: 5886140 (1999-03-01), Olivares et al.
patent: 5-100485 (1993-04-01), None
patent: 5-289404 (1993-11-01), None
patent: 2001-117272 (2001-04-01), None
Sensui Keita
Tanaka Katsutomo
Watanabe Makoto
Armstrong Kratz Quintos Hanson & Brooks, LLP
Chapman Mark A.
Zeon Corporation
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