Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1994-01-03
1995-11-07
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
G03G 9087
Patent
active
054647223
ABSTRACT:
A toner for developing electrostatic images is produced through a process including the steps of: pre-mixing binder resin particles carrying or containing inorganic fine powder to prepare a premix; melt-kneading the premix to obtain a kneaded product; cooling the kneaded product to obtain a colored resinous solid; pulverizing the colored resinous solid to obtain a pulverized product; and classifying the pulverized product to obtain toner particles. The inclusion of the resin particles carrying or containing inorganic fine powder improves the performance of the pre-mixing to provide an improved dispersion of toner materials within the product toner particles. A fine powder fraction from the classifying step can also be recycled to the premixing step. The resin particles can be toner particles per se. The inorganic fine powder may preferably be silica fine powder treated with silicone oil.
REFERENCES:
patent: 4839255 (1989-06-01), Hyosu et al.
patent: 5066558 (1991-11-01), Hikake et al.
patent: 5139914 (1992-08-01), Tomiyama et al.
patent: 5262267 (1993-11-01), Takiguchi et al.
patent: 5270143 (1993-12-01), Tomiyama et al.
patent: 5270770 (1993-12-01), Kukimoto et al.
Database WP1, Week 7949, Derwent Pub. AN79-88488B (49).
Database WP1, Week 7921, Derwent Pub. AN79-39847B (21).
Patent Abstract of Japan, vol. 10, No. 226 (C-364) (2282) Aug. 1986.
Patent Abstract of Japan, vol. 9, No. 64 (P-343) Mar. 1985.
Patent Abstract of Japan, vol. 6, No. 195 (P-146) (1073) Oct. 1982.
Patent Abstract of Japan, vol. 7, No. 54 (P-180) 1199) Mar. 1983.
Kobori Takakuni
Tomiyama Koichi
Yusa Hiroshi
Canon Kabushiki Kaisha
Goodrow John
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