Patents by Inventor Louis J. Sorriero
Louis J. Sorriero has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7700248Abstract: Disclosed are polymers which include tertiary aryl amine moieties that can function as hole transport agents and which also have reactive silane groups thereon capable of being condensed to a silsesquioxane composition, as well as the silsesquioxane compositions prepared therefrom. The silsesquioxanes can be coated onto substrates to form abrasion-resistant layers having hole transport properties useful in devices that require charge transport properties, such as light-emitting diodes and organic electrophotographic elements such as photoreceptors or photoconductors. Also disclosed are electrophotographic elements which comprise an electrically conducting layer, a charge generating layer overlying the electrically conducting layer, and a charge transport layer overlying the electrically conducting layer. The charge transport layer, which can be an overcoat overlying the charge generating layer, comprises the condensed reaction product of the disclosed polymers.Type: GrantFiled: July 8, 2003Date of Patent: April 20, 2010Assignee: Eastman Kodak CompanyInventors: Xin Jin, Wayne T. Ferrar, David S. Weiss, Louis J. Sorriero
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Patent number: 7011919Abstract: In a process for forming a self-dispersing crystalline phthalocyanine pigment composition of monodisperse nanoparticles, a mixture containing titanyl fluorophthalocyanines, unsubstituted titanyl phthalocyanine, and an organic monomeric dispersant but substantially free of organic solvents or inorganic salts is dry milled, thereby forming a substantially amorphous phthalocyanine pigment composition. The substantially amorphous composition is contacted with an organic solvent having a hydrogen bonding parameter gammac lower than about 8, thereby forming a self-dispersing cocrystalline phthalocyanine pigment composition of monodisperse nanoparticles containing titanyl fluorophthalocyanines and titanyl phthalocyanine, which can be used to form the charge generation layer of an electrophotographic element.Type: GrantFiled: September 4, 2003Date of Patent: March 14, 2006Assignee: Eastman Kodak CompanyInventors: Michel F. Molaire, Louis J. Sorriero
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Patent number: 6949139Abstract: In a process for forming an amorphous pigment mixture consisting essentially of TiOPc and TiOFPc and containing more than about 75 weight percent of TiOPc, a mixture of crude crystalline TiOPc and TiOFPc pigments in a weight ratio of at least 75:25 TiOPc:TiOFPc is combined with at least about 5 wt. %, based on the total weight of TiOPc and TiOFPc, of an organic milling aid. The mixture is treated under conditions effective to form a substantially amorphous pigment mixture of TiOPc and TiOFPc. The organic milling aid can be separated from the substantially amorphous pigment mixture, which can be converted to a nanoparticulate cocrystalline TiOPc/TiOFPc composition.Type: GrantFiled: September 4, 2003Date of Patent: September 27, 2005Assignee: Eastman Kodak CompanyInventors: Michel F. Molaire, Louis J. Sorriero
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Patent number: 6866977Abstract: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic mechanisms, and, is not substantially affected by humidity changes. The barrier layer includes a polyamide-co-imide having covalently bonded as repeat units in the polymer chain, aromatic tetracarbonylbisimide groups of the formula: wherein Ar1 and Ar2 respectively represent tetravalent or trivalent aromatic groups of 6 to about 20 carbon atoms, and X is O, C(CF3)2, S?O or SO2.Type: GrantFiled: September 14, 2002Date of Patent: March 15, 2005Assignee: Eastman Kodak CompanyInventors: Louis J. Sorriero, Michel F. Molaire, Marie B. O'Regan, Wayne T. Ferrar, David S. Weiss, Jane Robin Cowdery
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Publication number: 20040161692Abstract: In a process for forming a self-dispersing crystalline phthalocyanine pigment composition of monodisperse nanoparticles, a mixture containing titanyl fluorophthalocyanines, unsubstituted titanyl phthalocyanine, and an organic monomeric dispersant but substantially free of organic solvents or inorganic salts is dry milled, thereby forming a substantially amorphous phthalocyanine pigment composition. The substantially amorphous composition is contacted with an organic solvent having a hydrogen bonding parameter gammac lower than about 8, thereby forming a self-dispersing cocrystalline phthalocyanine pigment composition of monodisperse nanoparticles containing titanyl fluorophthalocyanines and titanyl phthalocyanine, which can be used to form the charge generation layer of an electrophotographic element.Type: ApplicationFiled: September 4, 2003Publication date: August 19, 2004Applicant: NexPress Solutions LLC and Heidelberg Digital LLCInventors: Michel F. Molaire, Louis J. Sorriero
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Publication number: 20040126683Abstract: Disclosed are polymers which include tertiary aryl amine moieties that can function as hole transport agents and which also have reactive silane groups thereon capable of being condensed to a silsesquioxane composition, as well as the silsesquioxane compositions prepared therefrom. The silsesquioxanes can be coated onto substrates to form abrasion-resistant layers having hole transport properties useful in devices that require charge transport properties, such as light-emitting diodes and organic electrophotographic elements such as photoreceptors or photoconductors. Also disclosed are electrophotographic elements which comprise an electrically conducting layer, a charge generating layer overlying the electrically conducting layer, and a charge transport layer overlying the electrically conducting layer. The charge transport layer, which can be an overcoat overlying the charge generating layer, comprises the condensed reaction product of the disclosed polymers.Type: ApplicationFiled: July 8, 2003Publication date: July 1, 2004Inventors: Xin Jin, Wayne T. Ferrar, David S. Weiss, Louis J. Sorriero
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Publication number: 20040106055Abstract: In a process for forming an amorphous pigment mixture consisting essentially of TiOPc and TiOFPc and containing more than about 75 weight percent of TiOPc, a mixture of crude crystalline TiOPc and TiOFPc pigments in a weight ratio of at least 75:25 TiOPc:TiOFPc is combined with at least about 5 wt. %, based on the total weight of TiOPc and TiOFPc, of an organic milling aid. The mixture is treated under conditions effective to form a substantially amorphous pigment mixture of TiOPc and TiOFPc. The organic milling aid can be separated from the substantially amorphous pigment mixture, which can be converted to a nanoparticulate cocrystalline TiOPc/TiOFPc composition.Type: ApplicationFiled: September 4, 2003Publication date: June 3, 2004Applicants: NexPress Solutions LLC, Heidelberg Digital LLCInventors: Michel F. Molaire, Louis J. Sorriero
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Patent number: 6666596Abstract: Apparatus is disclosed for re-applying dye to a dye donor element of a dye transfer thermal printer. A reservoir contains a supply of dye that is thermally transferred from the reservoir to the dye donor element by diffusion of dye into the dye donor element. The reservoir has a diffusion controlled permeation membrane through which dye is delivered to the dye donor element, while inhibiting diffusion of a binder, whereby the dye diffuses between the reservoir and the dye donor element but the binder does not.Type: GrantFiled: May 18, 2001Date of Patent: December 23, 2003Assignee: Eastman Kodak CompanyInventors: Elizabeth G. Burns, Susan L. Dawson, Elizabeth A. Gallo, Daniel J. Harrison, Louis J. Sorriero, Ludmila S. Weiss
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Publication number: 20030162109Abstract: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic mechanisms, and, is not substantially affected by humidity changes.Type: ApplicationFiled: September 14, 2002Publication date: August 28, 2003Inventors: Louis J. Sorriero, Michel F. Molaire, Marie B. O' Regan, Wayne T. Ferrar, David S. Weiss, Jane Robin Cowdery
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Patent number: 6593046Abstract: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic, or both electronic and ionic mechanisms, and, is not substantially affected by humidity changes. The barrier layer includes a polyester-co-imides, polyesterionomer-co-imides, or polyamide-co-imides having covalently bonded as repeat units in the polymer chain, aromatic tetracarbonylbisimide groups of the formula: wherein Ar1 and Ar2 respectively represent tetravalent or trivalent aromatic groups of 6 to about 20 carbon atoms, and X is O, C(CF3)2, S═O or SO2.Type: GrantFiled: September 18, 2001Date of Patent: July 15, 2003Assignee: Heidelberger Druckmaschinen AGInventors: Louis J. Sorriero, Michel F. Molaire, Marie B. O'Regan, Wayne T. Ferrar, David S. Weiss, Jane Robin Cowdery
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Patent number: 6573222Abstract: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and a protective topcoat superposed farthest from the support. The topcoat includes a binder and lubricant droplets. The lubricant droplets are composed of a lubricant and a water soluble polymer containing heterocyclic aromatic nitrogen groups wherein the droplets are surrounded by a particulate stabilizer. The present invention is also directed to the lubricant droplets.Type: GrantFiled: May 11, 2000Date of Patent: June 3, 2003Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Tamara K. Osburn, Louis J. Sorriero
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Publication number: 20020155365Abstract: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic, or both electronic and ionic mechanisms, and, is not substantially affected by humidity changes.Type: ApplicationFiled: September 18, 2001Publication date: October 24, 2002Inventors: Louis J. Sorriero, Michel F. Molaire, Marie B. O'Regan, Wayne T. Ferrar, David S. Weiss, Jane Robin Cowdery
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Patent number: 6451956Abstract: In a photoconductive element comprising a conductive support, e.g., an electrically conductive film, drum or belt on which a negatively chargeable photoconductive layer is formed, an electrical barrier layer is formed between the support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges but transports electrons under an applied electric field. The barrier layer of the invention transports charge by electronic rather than ionic mechanisms and, therefore, is not substantially affected by humidity changes. The barrier layer comprises a polyester-co-imide, polyesterionomer-co-imide or polyamide-co-imide having covalently bonded as repeating units in the polymer chain, aromatic tetracarboxylbisimide groups of the formula: wherein Ar1 and Ar2 represent, respectively, tetravalent and trivalent aromatic groups of 6 to 20 carbon atoms.Type: GrantFiled: June 8, 2001Date of Patent: September 17, 2002Assignee: Nex Press Solutions LLCInventors: Louis J. Sorriero, Marie B. O'Regan, Michel F. Molaire
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Patent number: 6369136Abstract: The present invention relates to a binder composition including a polymer formed from at least one vinyl type monomer and at least one water dispersible polyester-ionomer.Type: GrantFiled: December 31, 1998Date of Patent: April 9, 2002Assignee: Eastman Kodak CompanyInventors: Louis J. Sorriero, Dinesh Tyagi
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Publication number: 20020012862Abstract: In a photoconductive element comprising a conductive support, e.g., an electrically conductive film, drum or belt on which a negatively chargeable photoconductive layer is formed, an electrical barrier layer is formed between the support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges but transports electrons under an applied electric field. The barrier layer of the invention transports charge by electronic rather than ionic mechanisms and, therefore, is not substantially affected by humidity changes.Type: ApplicationFiled: June 8, 2001Publication date: January 31, 2002Applicant: NexPress Solutions, LLCInventors: Louis J. Sorriero, Marie B. O'Regan, Michel F. Molaire
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Publication number: 20010041084Abstract: Apparatus is disclosed for re-applying dye to a dye donor element of a dye transfer thermal printer. A reservoir contains a supply of dye that is thermally transferred from the reservoir to the dye donor element by diffusion of dye into the dye donor element. The reservoir has a diffusion controlled permeation membrane through which dye is delivered to the dye donor element, while inhibiting diffusion of a binder, whereby the dye diffuses between the reservoir and the dye donor element but the binder does not.Type: ApplicationFiled: May 18, 2001Publication date: November 15, 2001Inventors: Elizabeth G. Burns, Susan L. Dawson, Elizabeth A. Gallo, Daniel J. Harrison, Louis J. Sorriero, Ludmila S. Weiss
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Patent number: 6294301Abstract: In a photoconductive element comprising a conductive support, e.g., an electrically conductive film, drum or belt on which a negatively chargeable photoconductive layer is formed, an electrical barrier layer is formed between the support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges but transports electrons under an applied electric field. The barrier layer of the invention transports charge by electronic rather than ionic mechanisms and, therefore, is not substantially affected by humidity changes. The barrier layer comprises a polyester-co-imide, polyesterionomer-co-imide or polyamide-co-imide having covalently bonded as repeating units in the polymer chain, aromatic tetracarboxylbisimide groups of the formula: wherein Ar1 and Ar2 represent, respectively, tetravalent and trivalent aromatic groups of 6 to 20 carbon atoms.Type: GrantFiled: May 19, 2000Date of Patent: September 25, 2001Assignee: Nexpress Solutions LLCInventors: Louis J. Sorriero, Marie B. O'Regan, Michel F. Molaire
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Publication number: 20010018474Abstract: A method of preparing an electrophotographic binder polymer comprising the steps of: a) mixing together at least one vinyl type monomer and at least one polyester ionomer in an aqueous medium; and b) emulsion polymerizing the mixture from step a) to form polymeric latex particles.Type: ApplicationFiled: December 31, 1998Publication date: August 30, 2001Inventors: LOUIS J. SORRIERO, DINESH TYAGI
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Patent number: 6068957Abstract: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and a protective topcoat superposed farthest from the support. The topcoat includes a binder and lubricant droplets. The lubricant droplets are composed of a lubricant and a water soluble polymer containing heterocyclic aromatic nitrogen groups wherein the droplets are surrounded by a particulate stabilizer. The present invention is also directed to the lubricant droplets.Type: GrantFiled: June 29, 1998Date of Patent: May 30, 2000Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Tamara K. Osburn, Louis J. Sorriero
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Patent number: 6066425Abstract: Electrophotographic charge generating elements comprise a solid electrolyte layer having improved image discrimination and layer adhesion. The solid electrolyte layer includes a complex of a silsesquioxane and a charge carrier, and is adhered to an underlying photoconductor layer using a primer layer that includes specific addition polymers. This primer layer has a resistivity of at least 10.sup.10 ohms/square and contains substantially no free ACTIVE moieties as defined herein. Such groups, when present in the primer layer, appear to reduce image discrimination.Type: GrantFiled: December 30, 1998Date of Patent: May 23, 2000Assignee: Eastman Kodak CompanyInventors: Wayne T. Ferrar, Louis J. Sorriero, J. Robin Cowdery, David S. Weiss