摘要:
A reactive melt mixing process for preparing toner resin, comprising: melting a reactive base resin, thereby forming a polymer melt; adding to said polymer melt a free radical initiator compound and optionally a vinyl monomer compound to form a second melt; and heating and mixing under high shear said second melt with optional addition of a vinyl monomer compound to form a partially crosslinked and partially gelled toner resin.
摘要:
A toner composition comprised of resin particles, pigment particles, and a polysalt charge enhancing additive of the following formula ##STR1## wherein X is an aromatic substituent.
摘要:
A toner composition comprised of resin particles, pigment particles, and a charge enhancing additive as represented by the following formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are idependently selected from the group consisting of alkyl and aryl.
摘要:
Toner particles are prepared by a dispersion polymerization technique wherein monomer present in the discontinuous phase is removed after sizing of the monomer droplets to thereby increase the weight ratio of magnetic particles present in the completed toner particles.
摘要:
Toner particles are prepared by a dispersion polymerization technique wherein a solvent for the monomer is included in the preparation of the discontinuous phase, and the solvent is removed prior to polymerization to increase the weight ratio of the magnetic particles present in the completed toner particles.
摘要:
The present disclosure provides polymer-ionic complexes useful as charge control agents. Such charge control agents may be utilized with toner particles to impart excellent triboelectric charging characteristics to the toner.
摘要:
The present disclosure provides processes for reducing the particle size of latex resins and toners produced with such resins. In embodiments, a buffer may be added to materials utilized to produce a latex and reduce the particle size of the resulting latex particles and toner particles. In accordance with the present disclosure, one may be able to utilize materials for the production of latex resins and toners which may otherwise produce particles that are too large in the absence of the buffer.
摘要:
A composition comprised of a core and thereover a polymer of (1) polystyrene/alkyl methacrylate/dialkylaminoethyl methacrylate, (2) polystyrene/alkyl methacrylate/alkyl hydrogen aminoethyl methacrylate, (3) polystyrene/alkyl acrylate/dialkylaminoethyl methacrylate, or (4) polystyrene/alkyl acrylate/alkyl hydrogen aminoethyl methacrylate.