MAGNETIC POLYMER PARTICLE, METHOD OF PRODUCING THE SAME, AND AQUEOUS DISPERSION, CARTRIDGE, AND IMAGE FORMING APPARATUS USING THE SAME
The present invention provides a magnetic polymer particle, including a magnetic powder; a crosslinked polymer of an ethylenically unsaturated monomer; and a non-crosslinked polymer, in which an amount of the magnetic powder with respect to a total amount of the magnetic polymer particle is in a ran...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | English |
Published |
10.07.2008
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The present invention provides a magnetic polymer particle, including a magnetic powder; a crosslinked polymer of an ethylenically unsaturated monomer; and a non-crosslinked polymer, in which an amount of the magnetic powder with respect to a total amount of the magnetic polymer particle is in a range of about 2.5 to about 50% by mass, the ethylenically unsaturated monomer includes a monomer having a hydroxyl group and a hydrophobic monomer which is free from a hydroxyl group, and an amount of the hydroxyl groups included in the crosslinked polymer and the non-crosslinked polymer is in a range of about 0.1 to about 5.0 mmol/g with respect to a total amount of the crosslinked polymer and the non-crosslinked polymer. Further, the invention provides a method of producing the magnetic polymer particle, and an aqueous dispersion, a cartridge, and an image forming apparatus, all of which use the magnetic polymer particle. |
---|---|
Bibliography: | Application Number: US20080968875 |