Process for providing encapsulated toner composition

Details Process for providing encapsulated toner composition Process for providing encapsulated toner composition

1973-01-29

1978-06-27

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

106308M, 252 621P, 252314, 427221, 427222, B01J 1302

Patent

active

040974049

ABSTRACT:
A simplified method of encapsulating toners is provided which comprises polymerization and coacervation resulting in a copolymer encapsulated in an incompatible shell polymer. Toner particles are prepared by mixing a solute polymer in a solvent monomer after which polymerization of the solvent monomer is initiated, resulting in a polymer from the solvent monomer which phase-separates from the solvent monomer to form a solvent-poor phase which eventually comprises the capsule core. The solvent-rich phase then provides the material for the capsule wall.

REFERENCES:
patent: 2969331 (1961-01-01), Brynko et al.
patent: 3093039 (1963-06-01), Rheinfrank
patent: 3391082 (1968-07-01), Maclay
patent: 3625747 (1971-12-01), Kaneko et al.

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