Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2003-01-23
2004-06-01
Dote, Janis L. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108220, C430S110200, C430S137110, C430S137140, C430S109400, C399S285000
Reexamination Certificate
active
06743559
ABSTRACT:
Application U.S. Ser. No. 09/408,606, now U.S. Pat. No. 6,137,387, filed Sep. 30, 1999, entitled “Marking Materials and Marking Processes Therewith,” with the named inventors Richard P. Veregin, Carl P. Tripp, Maria N. McDougall, and T. Brian McAneney, the disclosure of which is totally incorporated herein by reference, discloses an apparatus for depositing a particulate marking material onto a substrate, comprising (a) a printhead having defined therein at least one channel, each channel having an inner surface and an exit orifice with a width no larger than about 250 microns, the inner surface of each channel having thereon a hydrophobic coating material; (b) a propellant source connected to each channel such that propellant provided by the propellant source can flow through each channel to form propellant streams therein, said propellant streams having kinetic energy, each channel directing the propellant stream through the exit orifice toward the substrate; and (c) a marking material reservoir having an inner surface, said inner surface having thereon the hydrophobic coating material, said reservoir containing particles of a particulate marking material, said reservoir being communicatively connected to each channel such that the particulate marking material from the reservoir can be controllably introduced into the propellant stream in each channel so that the kinetic energy of the propellant stream can cause the particulate marking material to impact the substrate, wherein either (i) the marking material particles of particulate marking material have an outer coating of the hydrophobic coating material; or (ii) the marking material particles have additive particles on the surface thereof, said additive particles having an outer coating of the hydrophobic coating material; or (iii) both the marking material particles and the additive particles have an outer coating of the hydrophobic coating material.
Application U.S. Ser. No. 09/410,271, now U.S. Pat. No. 6,302,513, filed Sep. 30, 1999, entitled “Marking Materials and Marking Processes Therewith,” with the named inventors Karen A. Moffat, Richard P. Veregin, Maria N. McDougall, Philip D. Floyd, Jaan Nodlandi, T. Brian McAneney, and Daniele C. Boils, the disclosure of which is totally incorporated herein by reference, discloses a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having a channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said particles are prepared by an emulsion aggregation process.
Application U.S. Ser. No. 09/585,044, refiled as 09/863,032, which is now U.S. Pat. No. 6,521,297, filed Jun. 1, 2000, entitled “Marking Material and Ballistic Aerosol Marking Process for the Use Thereof,” with the named inventors Maria N. V. McDougall, Richard P. N. Veregin, and Karen A. Moffat, the disclosure of which is totally incorporated herein by reference, discloses a marking material comprising (a) toner particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said toner particles are prepared by an emulsion aggregation process, and (b) hydrophobic conductive metal oxide particles situated on the toner particles. Also disclosed is a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having a channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises (a) toner particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said toner particles are prepared by an emulsion aggregation process, and (b) hydrophobic conductive metal oxide particles situated on the toner particles.
Application U.S. Ser. No. 09/723,778, filed concurrently herewith, entitled “Ballistic Aerosol Marking Process Employing Marking Material Comprising Vinyl Resin and Poly(3,4-ethylenedioxythiophene),” with the named inventors Karen A. Moffat and Maria N. V. McDougall, now U.S. Pat. No. 6,383,561, the disclosure of which is totally incorporated herein by reference, discloses a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having at least one channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises toner particles which comprise a vinyl resin, an optional colorant, and poly(3,4-ethylenedioxythiophene), said toner particles having an average particle diameter of no more than about 10 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said toner particles are prepared by an emulsion aggregation process, said toner particles having an average bulk conductivity of at least about 10
−11
Siemens per centimeter.
Application U.S. Ser. No. 09/723,577, filed concurrently herewith, entitled “Ballistic Aerosol Marking Process Employing Marking Material Comprising Vinyl Resin and Poly(3,4-ethylenedioxypyrrole),” with the named inventors Karen A. Moffat, Rina Carlini, Maria N. V. McDougall, and Paul J. Gerroir, now U.S. Pat. No. 6,467,871, the disclosure of which is totally incorporated herein by reference, discloses a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having at least one channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material Into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises toner particles which comprise a vinyl resin, an optional colorant, and poly(3,4-ethyl
Combes James R.
McDougall Maria N. V.
Moffat Karen A.
Byorick Judith I.
Dote Janis L.
Xerox Corporation
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