Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-03-28
2006-03-28
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S117200, C430S137220
Reexamination Certificate
active
07018767
ABSTRACT:
The invention provides liquid toner compositions in which the polymeric binder is chemically grown in the form of copolymeric binder particles dispersed in a liquid carrier. The polymeric binder includes one amphipathic copolymer comprising one or more S material portions and one or more D material portions, wherein the components of the composition comprise sufficient acid and base functionality to provide a three dimensional gel of controlled rigidity which can be reversibly reduced to a fluid state by application of energy. The toners as described herein surprisingly provide compositions that are particularly suitable for electrophotographic processes wherein the transfer of the image from the surface of a photoconductor to an intermediate transfer material or directly to a print medium is carried out without film formation on the photoconductor.
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U.S. Appl. No. 10/612,182, filed Jun. 30, 2003, entitled “Gel Organosol Including Amphipathic Copolymeric Binder Having Selected Molecular Weight and Liquid Toners for Electrophotographic Applications” (58 pgs.).
U.S. Appl. No. 10/612,448, filed Jun. 30, 2003, entitled “Gel Organosol Including Amphipathic Copolymeric Binder Having Hydrogen Bonding Functionality and Liquid Toners for Electrophotographic Applications” (74 pgs.).
U.S. Appl. No. 10/612,444, filed Jun. 30, 2003, entitled “Gel Organosol Including Amphipathic Copolymeric Binder Having Crosslinking Functionality and Liquid Toners for Electrophotographic Applications” (63 pgs.).
Baker James A.
Qian Julie Y.
Chapman Mark A.
Kagan Binder PLLC
Samsung Electronics Company
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