Magnetic polymer particle, method of producing the same, and aqueous dispersion, cartridge, and image forming apparatus using the same

Abstract

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.

Dependencies are inferred from the claim text.