Patents by Inventor Mario D. DeLaura
Mario D. DeLaura 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: 6440654Abstract: A photographic imaging element is disclosed which comprises a support having on one side thereof at least one silver halide emulsion layer and having, in order, on the opposite side thereof an electrically-conductive layer coated from a coating composition comprising a polythiophene/polyanion composition containing a polythiophene with conjugated polymer backbone component and a polymeric polyanion component, and a protective topcoat comprised of a polyurethane binder which has a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 lb/in2; wherein the electrical resistivity of the electrically-conductive layer before photographic processing is less than 2×109 &OHgr;/□, after photographic processing is between 1×109 &OHgr;/□ and 1×1011 &OHgr;/□, and increases by at least one order of magnitude as a result of photographic processing.Type: GrantFiled: April 3, 2001Date of Patent: August 27, 2002Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura, Debasis Majumdar
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Patent number: 6140030Abstract: In accordance with the present invention a photographic element contains a first electrically-conductive layer and a second electrically-conductive layer. The first conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature. before film processing and an electrical resistivity of greater than 1.times.10.sup.11 .OMEGA./.quadrature. after film processing. The second conductive layer has an electrical resistivity of between 1.times.10.sup.9 .OMEGA./.quadrature. and 1.times.10.sup.11 .OMEGA./.quadrature. both before and after film processing. Both of the electrically-conductive layers are transparent. In an alternative embodiment, the photographic element contains a transparent electrically-conductive layer containing a first electrically-conductive agent and a second electrically-conductive agent. The electrically-conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature.Type: GrantFiled: May 6, 1999Date of Patent: October 31, 2000Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura
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Patent number: 6107015Abstract: The present invention is a photographic element having a support, at least one silver halide emulsion layer superposed on a first side of the support and a protective overcoat superposed on a second said of the support. The protective overcoat includes a polyurethane having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50,000 lb/in.sup.2, an interpolymer composed of repeating units of A and B wherein A comprises a fluorine containing acrylate or a fluorine containing methacrylate monomer and B comprises an ethylenically unsaturated monomer containing hydratable groups and an electrically conductive agent.Type: GrantFiled: March 23, 1999Date of Patent: August 22, 2000Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
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Patent number: 6060541Abstract: The present invention is an imaging element which includes a support, at least one image forming layer superposed on the support and a protective overcoat superposed on the support. The protective overcoat is farthest from the support. The protective overcoat is formed by the coating and subsequent drying of a coating composition of an aqueous medium having therein a water dispersible siloxane-containing polyurethane.Type: GrantFiled: August 19, 1998Date of Patent: May 9, 2000Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
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Patent number: 5962207Abstract: The present invention is a motion picture film including a support having on one side thereof an antihalation undercoat and at least one silver halide emulsion layer. The motion picture film has on the opposite side thereof an antistatic layer and a protective overcoat. The protective overcoat includes a layer of a polyurethane binder having a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in.sup.2, and a topcoat farthest from said support. The topcoat is an interpolymer having repeating units of A and B wherein A is a fluorine containing acrylate or methacrylate monomer and B is an ethylenically unsaturated monomer containing hydratable groups.Type: GrantFiled: February 5, 1998Date of Patent: October 5, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Debasis Majumdar, Mario D. DeLaura
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Patent number: 5952164Abstract: The present invention is a photographic element including a support, at least one silver halide emulsion layer superposed on said support; and at least one auxiliary layer. The auxiliary layer includes a gelatin-grafted-polyurethane which is formed by coating and subsequent drying of a coating composition comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.Type: GrantFiled: June 4, 1998Date of Patent: September 14, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
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Patent number: 5932405Abstract: The present invention is a photographic element which includes a support, at least silver halide light sensitive layer superposed on the support, and an outermost protective overcoat superposed on the support. The protective overcoat includes a water dispersible siloxane-containing polyurethane.Type: GrantFiled: October 20, 1997Date of Patent: August 3, 1999Assignee: Eastman Kodak CorporationInventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
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Patent number: 5910401Abstract: The present invention is an imaging base which includes a polyester film support and an adhesion promoting layer directly adhered to a surface of the support. The adhesion promoting layer is formed by the coating and subsequent drying of a coating composition comprising a gelatin-grafted-polyurethane. The gelatin-grafted polyurethane is covalently bound to the polyurethane through a grafting agent wherein the ratio of gelatin to polyurethane is from 1:10 to 2:1. In one embodiment of the invention the imaging support is coated with at least one silver halide emulsion layer to form a photographic element.Type: GrantFiled: June 4, 1998Date of Patent: June 8, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
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Patent number: 5876910Abstract: The present invention is an imaging element which includes a support, at least one image forming layer superposed on the support and a protective overcoat superposed on the support. The protective overcoat is farthest from the support. The protective overcoat is formed by the coating and subsequent drying of a coating composition of an aqueous medium having therein a water dispersible siloxane-containing polyurethane.Type: GrantFiled: October 20, 1997Date of Patent: March 2, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
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Patent number: 5874191Abstract: The present invention is an imaging element including a support, at least one image-forming layer and an auxiliary layer. The auxilary layer is formed by providing a coating composition of fluoroolefin-vinyl ether copolymer latex in an aqueous medium, coating the coating composition of the support and drying the coating composition. The present invention also includes a coating composition for use in an imaging element including a fluoroolefin-vinyl ether copolymer latex dispersed in an aqueous medium.Type: GrantFiled: June 12, 1997Date of Patent: February 23, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Yongcai Wang, Mario D. DeLaura
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Patent number: 5786135Abstract: The present invention describes an imaging element wherein one layer is coated from an aqueous coating solution having a film forming binder. The film forming binder includes a carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature greater than 60.degree. C. and an acid number of from 60 to 260. The carboxylic acid groups of the vinyl polymer or copolymer are reacted with ammonia or amine to provide a pH of the coating composition of from about 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: July 28, 1998Assignee: Eastman Kodak CompanyInventors: Charles Chester Anderson, Yongcai Wang, James L. Bello, Mario D. DeLaura
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Patent number: 5747232Abstract: In accordance with this invention, a photographic film especially suited for motion imaging film applications such as motion picture film or television film has on one side of a support material, in order, a process surviving, electrically conductive subbing layer, a photographic emulsion, and a protective overcoat; and on the opposite side a carbon black-containing backing layer, and optionally, a lubricant that overlies the backing layer. The carbon black-containing layer provides antihalation and antistatic protection for the unprocessed film. The conductive subbing layer retains its antistatic properties after processing so that the motion imaging film is protected from the generation of static charge after the carbon black-containing layer is removed during processing. The conductive subbing layer has a resistivity of less than 5.times.10.sup.9 .OMEGA./.quadrature. after film processing.Type: GrantFiled: February 27, 1997Date of Patent: May 5, 1998Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura
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Patent number: 5723273Abstract: The present invention is an imaging element which includes a support and at least one image forming layer. The imaging element further includes an antistatic layer and a protective layer overlying the antistatic layer. The protective layer is formed from an aqueous coating solution containing a film forming binder and a crosslinking agent. The film forming binder is a carboxylic containing vinyl polymer or copolymer having a glass transition temperature of greater than 50.degree. C. and an acid number of from 60 to 260. The carboxylic acid group of the vinyl polymer or copolymer are reacted with ammonia or amine to provide a pH of the coating solution of from 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Charles Chester Anderson, Yongcai Wang, James L. Bello, Mario D. DeLaura
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Patent number: 5597680Abstract: Imaging elements, such as photographic films and papers, are comprised of a support, an image-forming layer and at least one auxiliary layer containing solvent-dispersible polymer particles. The auxiliary layer is coated from a dispersion of core/shell polymer particles in a liquid organic medium, the polymer particles comprising a core portion which is insoluble in the organic medium and a shell portion which has an affinity for both the core portion and the organic medium.Type: GrantFiled: December 5, 1995Date of Patent: January 28, 1997Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Charles C. Anderson, James L. Bello, Mario D. DeLaura
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Patent number: 5597681Abstract: Imaging elements, such as photographic films and papers, are comprised of a support, an image-forming layer, an electrically-conductive layer and a protective overcoat layer that overlies the electrically-conductive layer. The protective overcoat layer is coated from a dispersion of core/shell polymer particles in a liquid organic medium, the polymer particles comprising a core portion which is insoluble in the organic medium and a shell portion which has an affinity for both the core portion and the organic medium.Type: GrantFiled: December 5, 1995Date of Patent: January 28, 1997Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Yongcai Wang, Mario D. DeLaura, James L. Bello
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Patent number: 5576163Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements are comprised of a support, an image-forming layer and an electrically-conductive layer comprised of a vanadium pentoxide colloidal gel, a polyesterionomer binder and a methoxyalkylmelamine. The electrically-conductive layer exhibits electrical conductivity which is both process-surviving and essentially independent of humidity.Type: GrantFiled: April 1, 1996Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura
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Patent number: 5385968Abstract: An aqueous coating composition for applying a print retaining antistatic layer consisting essentially of an aluminum modified colloidal silica and an antistatic agent in a binder polymer, the binder polymer consisting essentially of an addition product of from about 30 to 78 mol % of an alkyl methacrylate wherein the alkyl group has from 3 to 8 carbon atoms, from about 2 to about 10 mol % of an alkali metal salt of an ethylenically unsaturated sulfonic acid and from 20 to about 65 mol % of a vinyl benzene, the polymer having a glass transition point of from 30.degree. to 65.degree. C.Type: GrantFiled: June 8, 1993Date of Patent: January 31, 1995Assignee: Eastman Kodak CompanyInventors: Wayne A. Bowman, Mario D. DeLaura, Norman S. Edgett
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Patent number: 5376518Abstract: A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatin-hardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.Type: GrantFiled: May 18, 1994Date of Patent: December 27, 1994Assignee: Eastman Kodak CompanyInventors: David F. Jennings, Charles C. Anderson, Benneth C. Onuh, Mario D. DeLaura
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Patent number: 5358834Abstract: A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatin-hardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.Type: GrantFiled: September 23, 1993Date of Patent: October 25, 1994Assignee: Eastman Kodak CompanyInventors: David F. Jennings, Charles C. Anderson, Benneth C. Onuh, Mario D. DeLaura
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Patent number: 5340676Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising a film-forming hydrophilic colloid having dispersed therein both electrically-conductive metal-containing particles and water-insoluble polymer particles. The combination of hydrophilic colloid, metal-containing particles and water-insoluble polymer particles provides a controlled degree of electrical conductivity and beneficial chemical, physical and optical properties which adapt the electrically-conductive layer for such purposes as providing protection against static or serving as an electrode which takes part in an image-forming process.Type: GrantFiled: March 18, 1993Date of Patent: August 23, 1994Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura, Paul A. Christian, Ibrahim M. Shalhoub, David F. Jennings