Patents by Inventor Yvan Gilliams

Yvan Gilliams 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).

  • Patent number: 6607872
    Abstract: A photothermographic recording material comprising a photo-addressable thermally developable element coatable from aqueous media comprising a substantially light-insensitive organic silver salt, photosensitive silver halide in catalytic association with the substantially light-insensitive organic silver salt and a reducing agent in thermal working relationship with the substantially light-insensitive organic silver salt and a binder, characterized in that the binder comprises a water-soluble polymer, a water-dispersible polymer or a mixture of a water-soluble polymer and a water-dispersible polymer and particles of the photosensitive silver halide are non-aggregating in the photo-addressable thermally developable element and are uniformly distributed over and between particles of the substantially light-insensitive organic silver salt, at least 80% by number of the particles having a diameter, determined by transmission electron microscopy, of ≦40 nm; and a recording process therefor.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: August 19, 2003
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams, Johan Loccufier, Sabine Emmers, Ronny De Clercq
  • Patent number: 6579671
    Abstract: A recording material comprising a support and a thermosensitive element containing one or more of silver behenate, silver palmitate, and silver stearate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver behenate, palmitate, or stearate is not associated with mercury and/or lead ions, production processes for particles of substantially light-insensitive organic silver salt primarily comprising silver behenate, silver palmitate, or stearate, with described X-ray characteristics in the substantial absence of organic solvent.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: June 17, 2003
    Assignee: AGFA-Gevaert
    Inventors: Sabine Emmers, Bartholomeus Horsten, Ingrid Geuens, Yvan Gilliams, Dirk Bollen, Ivan Hoogmartens, Andre Bellens
  • Patent number: 6576415
    Abstract: A process for producing an aqueous dispersion comprising: preparing a dispersion of photosensitive silver halide and a binder or a surfactant in an aqueous medium; and subsequently either (a) adding a first silver salt to the silver halide dispersion and then adding a second silver salt; or (b) adding the second silver salt to the silver halide dispersion and then adding the first silver salt, wherein the aqueous dispersion is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms, the first silver salt is a substantially light-insensitive and substantially water-insoluble silver salt of an organic carboxylic acid, and the second silver salt has a water-solubility greater than 0.1 g in 1 L of water at 20° C.; an aqueous dispersion obtainable therewith; a photothermographic recording material prepared with the aqueous dispersion; and a process for preparing the photothermographic recording material.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: June 10, 2003
    Assignee: AGFA-Gevaert
    Inventors: Herman Uytterhoeven, Johan Loccufier, Yvan Gilliams
  • Patent number: 6576413
    Abstract: An aqueous dispersion comprising a binder or a surfactant, a substantially light-insensitive and substantially water-insoluble organic silver salt and a photosensitive silver halide, wherein the aqueous emulsion further comprises a sensitization agent selected from the group consisting of: tin(II) bromide, aminoiminomethane sulfinic acid, water-soluble salts of H3PO3, water-soluble salts of H3PO2, water-soluble SO32− salts and water-soluble HSO3− salts; and production process for therefor and a photothermographic recording material comprising a support and a photo-addressable thermally developable element, the photo-addressable thermally developable element fulfilling two requirements: (i) the photo-addressable thermally developable element contains a substantially light-insensitive and substantially water-insoluble organic silver salt, a reducing agent for the substantially light-insensitive and substantially water-insoluble organic silver salt and in thermal working relationship therewith, a pho
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: June 10, 2003
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Johan Loccufier, Yvan Gilliams
  • Publication number: 20020150849
    Abstract: A recording material comprising a support and a thermosensitive element containing one or more of silver behenate, silver palmitate, and silver stearate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver behenate, palmitate, or stearate is not associated with mercury and/or lead ions, production processes for particles of substantially light-insensitive organic silver salt primarily comprising silver behenate, silver palmitate, or stearate, with described X-ray characteristics in the substantial absence of organic solvent.
    Type: Application
    Filed: May 14, 2001
    Publication date: October 17, 2002
    Applicant: Agfa-Gevaert
    Inventors: Sabine Emmers, Bartholomeus Horsten, Ingrid Geuens, Yvan Gilliams, Dirk Bollen, Ivan Hoogmartens, Andre Bellens
  • Publication number: 20020061484
    Abstract: A process for producing an aqueous dispersion comprising: preparing a dispersion of photosensitive silver halide and a binder or a surfactant in an aqueous medium; and subsequently either (a) adding a first silver salt to the silver halide dispersion and then adding a second silver salt; or (b) adding the second silver salt to the silver halide dispersion and then adding the first silver salt, wherein the aqueous dispersion is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms, the first silver salt is a substantially light-insensitive and substantially water-insoluble silver salt of an organic carboxylic acid, and the second silver salt has a water-solubility greater than 0.1 g in 1 L of water at 20° C.; an aqueous dispersion obtainable therewith; a photothermographic recording material prepared with the aqueous dispersion; and a process for preparing the photothermographic recording material.
    Type: Application
    Filed: August 13, 2001
    Publication date: May 23, 2002
    Inventors: Herman Uytterhoeven, Johan Loccufier, Yvan Gilliams
  • Publication number: 20020058217
    Abstract: An aqueous dispersion comprising a binder or a surfactant, a substantially light-insensitive and substantially water-insoluble organic silver salt and a photosensitive silver halide, wherein the aqueous emulsion further comprises a sensitization agent selected from the group consisting of: tin(II) bromide, aminoiminomethane sulfinic acid, water-soluble salts of H3PO3, water-soluble salts of H3PO2, water-soluble SO32− salts and water-soluble HSO3− salts; and production process for therefor and a photothermographic recording material comprising a support and a photo-addressable thermally developable element, the photo-addressable thermally developable element fulfilling two requirements: (i) the photo-addressable thermally developable element contains a substantially light-insensitive and substantially water-insoluble organic silver salt, a reducing agent for the substantially light-insensitive and substantially water-insoluble organic silver salt and in thermal working relationship therewith, a pho
    Type: Application
    Filed: August 23, 2001
    Publication date: May 16, 2002
    Applicant: AGFA-GEVAERT
    Inventors: Herman Uytterhoeven, Johan Loccufier, Yvan Gilliams
  • Patent number: 6300044
    Abstract: A production method for a photothermographic recording material comprising the steps of: (i) providing a support; (ii) coating the support with a photo-addressable thermally developable element comprising a substantially light-insensitive organic silver salt, photosensitive silver halide in catalytic association with the substantially light-insensitive organic silver salt, a reducing agent in thermal working relationship with the substantially light-insensitive organic silver salt and a binder, characterized in that the photosensitive silver halide is formed by reacting an aqueous emulsion of particles of the substantially light-insensitive organic silver salt with at least one onium salt with halide or polyhalide anion(s) and that the photo-addressable thermally developable element is coated from an aqueous dispersion medium; and a recording process therefor.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: October 9, 2001
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams, Johan Loccufier, Sabine Emmers, Ronny De Clercq
  • Patent number: 6280923
    Abstract: A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising photosensitive silver halide in catalytic association with a substantially light-insensitive silver salt of an organic carboxylic acid, an organic reducing agent for the substantially light-insensitive silver salt of an organic carboxylic acid in thermal working relationship therewith and a binder, characterized in that the binder is water soluble or water dispersible and the reducing agent is a non-sulfo-substituted 6-membered aromatic or heteroaromatic ring compound with at least three substituents one of which is a hydroxy group at a first carbon atom and a second of which is a hydroxy or amino-group substituted on a second carbon atom one, three or five ring atoms removed in a system of conjugated double bonds from the first carbon atom in the compound, in which (i) the third substituent may be part of an annelated carbocyclic or heterocyclic ring system; (ii) the third substituent
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 28, 2001
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams, Johan Loccufier, Sabine Emmers
  • Patent number: 6274297
    Abstract: A production process for a photothermographic recording material thermally developable under substantially water-free conditions comprising the steps of: (i) providing a support; (ii) producing one or more aqueous dispersions or solutions containing together a substantially light-insensitive organic silver salt, photosensitive ex-situ silver halide in catalytic association with the substantially light-insensitive organic silver salt, a reducing agent in thermal working relationship with the substantially light-insensitive organic silver salt and a binder; (iii) coating the one or more aqueous dispersions or solutions onto the support to form layers which upon drying become a photo-addressable thermally developable element; and (iv) drying the layers, wherein the photo-addressable thermally developable element contains between 0.2 and 2.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: August 14, 2001
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Luc Bastiaens, Luc Vissers, Yvan Gilliams, Chris Van Roost
  • Patent number: 6187528
    Abstract: A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising photosensitive silver halide in catalytic association with a substantially light-insensitive organic silver salt, an organic reducing agent for the substantially light-insensitive organic silver salt in thermal working relationship therewith and a water-soluble or water-dispersible binder, characterized in that the substantially light-insensitive organic silver salt is a silver salt of an organic carboxylic acid, the photo-addressable thermally developable element further comprises a non-ionic or anionic surfactant and the photo-addressable thermally developable element is coatable from an aqueous medium and is capable of producing stable images without a wet-processing step; a process for producing the photothermographic recording material and a photothermographic recording process therefor.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: February 13, 2001
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams, Jan Gilleir
  • Patent number: 6184179
    Abstract: A thermographic recording material comprising a support and a thermosensitive element containing a substantially light-insensitive silver salt of an organic carboxylic acid, a reducing agent therefor in thermal working relationship therewith and at least one proteinaceous binder, wherein the thermosensitive element contains between 700 ppm and 5 ppm of a non-fluoro-halide ion with respect to the proteinaceous binders in the thermosensitive element and the thermographic recording material is thermally developable under substantially water-free conditions; and a process for the production thereof.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: February 6, 2001
    Assignee: Agfa-Gevaert
    Inventors: Yvan Gilliams, Carlo Uyttendaele, Ingrid Geuens, Yvan Hoogmartens
  • Patent number: 6159667
    Abstract: A recording material comprising a support and a thermosensitive element containing silver behenate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver behenate is not associated with mercury and/or lead ions and when the recording material is irradiated with a copper K.alpha..sub.1 X-ray source the ratio, normalized to a quantity of silver in the recording material of 1 g per m.sup.2 thereof, of the sum of the peak heights of the X-ray diffraction lines attributable to silver behenate at Bragg angles, 2.THETA., of 6.01.degree., 7.56.degree., 9.12.degree., 10.66.degree., 12.12.degree. and 13.62.degree. to the sum of the peak heights of the X-ray diffraction lines at Bragg angles, 2.THETA., of 25.60.degree., 35.16.degree. and 43.40.degree. of NIST standard 1976, rhombohedral Al.sub.2 O.sub.3, determined with the same X-ray diffractometer in the same state of adjustment, is greater than 0.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: December 12, 2000
    Assignee: Agfa-Gevaert
    Inventors: Sabine Emmers, Bartholomeus Horsten, Ingrid Geuens, Yvan Gilliams, Andre Bellens, Dirk Bollen, Ivan Hoogmartens
  • Patent number: 6143481
    Abstract: A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising photosensitive siver halide in catalytic association with a substantially light-insensitive silver salt of an organic carboxylic acid, an organic reducing agent for the substantially light-insensitive silver salt of an aliphatic carboxylic acid in thermal working relationship therewith and a binder, characterized in that the binder comprises a non-proteinaceous water-soluble binder, a non-proteinaceous water-dispersible binder (preferably a comprising a diene, styrene, an acrylate or a methacrylate monomer) or a mixture of a non-proteinaceous water soluble binder and a non-proteinaceous water-dispersible binder and the photo-addressable thermally developable element is capable of being coated from an aqueous medium and is capable of producing images stable to light without a wet-processing step; a process for producing the photothermographic recording material and a photo-thermographic
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: November 7, 2000
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams
  • Patent number: 6127102
    Abstract: A recording material comprising a support and a thermosensitive element containing silver stearate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver stearate is not associated with mercury and/or lead ions and when the recording material is irradiated with a copper K.alpha..sub.1 X-ray source the ratio of the sum of the peak heights of the X-ray diffraction lines attributable to silver stearate at Bragg angles, 2.THETA., of 2.THETA., of 3.62.degree., 5.45.degree., 7.30.degree., 9.04.degree., 10.97.degree. and 12.71.degree. to the sum of the peak heights of the X-ray diffraction lines at Bragg angles, 2.THETA., of 25.60.degree., 35.16.degree. and 43.40.degree. of NIST standard 1976, rhombohedral Al.sub.2 O.sub.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 3, 2000
    Assignee: Agfa-Gevaert N.V.
    Inventors: Ingrid Geuens, Yvan Gilliams, Dirk Bollen, Yvan Hoogmartens, Andre Bellens
  • Patent number: 6114100
    Abstract: A recording material comprising a support and a thermosensitive element comprising silver palmitate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver palmitate is not associated with mercury and/or lead ions and when the recording material is irradiated with a copper K.alpha..sub.1 X-ray source the ratio of the sum of the peak heights of the X-ray diffraction lines attributable to silver palmitate at Bragg angles, 2.THETA., of 4.01.degree., 6.049.degree., 8.031.degree., 10.06.degree., 12.08.degree. and 14.09.degree. to the sum of the peak heights of the X-ray diffraction lines at Bragg angles, 2.THETA., of 25.60.degree., 35.16.degree. and 43.40.degree. of NIST standard 1976, rhombohedral Al.sub.2 O.sub.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: September 5, 2000
    Assignee: Agfa-Gevaert N.V.
    Inventors: Ingrid Geuens, Yvan Gilliams, Dirk Bollen, Yvan Hoogmartens, Andre Bellens
  • Patent number: 6096486
    Abstract: A recording material comprising a support and a thermosensitive element containing silver behenate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver behenate is not associated with mercury and/or lead ions and when the recording material is irradiated with a copper K.alpha..sub.1 X-ray source the ratio, normalized to a quantity of silver in the recording material of 1 g per m.sup.2 thereof, of the sum of the peak heights of the X-ray diffraction lines attributable to silver behenate at Bragg angles, 2.THETA., of 6.01.degree., 7.56.degree., 9.12.degree., 10.66.degree., 12.12.degree. and 13.62.degree. to the sum of the peak heights of the X-ray diffraction lines at Bragg angles, 2.THETA., of 25.60.degree., 35.16.degree. and 43.40.degree. of NIST standard 1976, rhombohedral Al.sub.2 O.sub.3, determined with the same X-ray diffractometer in the same state of adjustment, is greater than 0.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: August 1, 2000
    Assignee: Agfa-Gevaert
    Inventors: Sabine Emmers, Bartholomeus Horsten, Ingrid Geuens, Yvan Gilliams, Andre Bellens, Dirk Bollen, Ivan Hoogmartens
  • Patent number: 5891616
    Abstract: A process for producing a suspension of particles containing a substantially light-insensitive organic silver salt of an organic carboxylic acid, comprising simultaneous metered addition of an aqueous solution or suspension of an organic carboxylic acid or its salt; and an aqueous solution of a silver salt to an aqueous liquid, wherein the metered addition of the aqueous solution or suspension of the organic carboxylic acid or its salt; and/or the aqueous solution of the silver salt is regulated by the concentration of silver ions or the concentration of anions of the silver salt in the aqueous liquid; for use in the production of (photo)thermographic materials.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: April 6, 1999
    Assignee: Agfa-Gevaert
    Inventors: Yvan Gilliams, Herman Uytterhoeven