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Patent Searching and Data


Title:
PRODUCTION OF POLYMER
Document Type and Number:
Japanese Patent JPH0643692
Kind Code:
A
Abstract:

PURPOSE: To eliminate or minimize defects in the production of a toner by a pulverizing method by which it is difficult to produce a fine uniform toner, a complex producing process is required and the product becomes expensive and to produce a toner having satisfactory performance.

CONSTITUTION: A water-soluble monomer and an oil-soluble monomer are mixed with a polymn. initiator, a crosslinking agent and a chain transfer agent, bulk polymn. is carried out until about 10-40wt.% of the monomers are polymerized and the resultant product is cooled. This partially polymerized product is mixed with an electrostatic charge controlling agent and a pigment- or dye-contg. component to prepare a uniform org. phase. This org. phase is dispersed in water to form a suspension having about 5-25μm average particle diameter and a particle size distribution of about 1.1-1.3, the polymn. of the monomers is completed by suspension polymn. and the resultant toner compsn. is washed with water, separated and dried.


Inventors:
HAADEII KEI MAHABADEI
MAIKERU KANINGAMU
DENISU WAI RAITO
Application Number:
JP8956793A
Publication Date:
February 18, 1994
Filing Date:
April 16, 1993
Export Citation:
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Assignee:
XEROX CORP
International Classes:
G03G9/087; C08L57/00; G03G9/08; (IPC1-7): G03G9/087
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)