摘要:
Modified unsaturated linear polymers have at least a first residue, a second residue and an acid residue. The first, second and acid residues correspond to a first, second and acid monomers used to prepare the polymers. The first monomer may be a diacid, anhydride, diacid ester or mixture thereof. The second monomer may be a diol or glycol. The acid monomer may be an aromatic dicarboxylic acid, different than the first monomer. The first residue is present in a concentration not less than about 7.5 mole % and the acid residue is present in a concentration ranging between 2.5 mole % and 12.5 mole %, based on the total mole monomer ratio of the polymer. The polymers have a glass transition temperature ranging from about 54.degree. C. to about 64.degree. C.
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 describes processes for making clear, high-gloss toners, including toner compositions resulting from such processes that find applications in overcoating and gloss enhancement.
摘要:
The present disclosure describes processes for making clear, high-gloss toners, including toner compositions resulting from such processes that find applications in overcoating and gloss enhancement.
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.