Patents by Inventor Alexander Williamson

Alexander Williamson 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).

  • Publication number: 20100021846
    Abstract: A heat-sensitive negative-working lithographic printing plate precursor comprising: a support having a hydrophilic surface or which is provided with a hydrophilic layer; and an image-recording layer comprising hydrophobic thermoplastic polymer particles, an infrared light absorbing dye and a dye; wherein said dye has a specified structure and a most bathochromic light absorption peak between 451 nm and 750 nm.
    Type: Application
    Filed: October 10, 2007
    Publication date: January 28, 2010
    Applicant: Agfa Graphics NV
    Inventors: Paul Callant, Hieronymus Andriessen, Alexander Williamson
  • Publication number: 20100021845
    Abstract: A heat-sensitive negative-working lithographic printing plate precursor comprising: a support having a hydrophilic surface or which is provided with a hydrophilic layer; and an image-recording layer comprising hydrophobic thermoplastic polymer particles and an infrared light absorbing dye; characterized in that: said image-recording layer further comprises a compound, said compound comprising an aromatic moiety and at least one acidic group or salt thereof and having a most bathochromic light absorption peak at a wavelength between 300 nm and 450 nm.
    Type: Application
    Filed: October 10, 2007
    Publication date: January 28, 2010
    Inventors: Andriessen Hieronymus, Paul Callant, Alexander Williamson
  • Publication number: 20090233235
    Abstract: A method of making a lithographic printing plate includes the steps of a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, wherein the photopolymerizable layer includes a polymerizable compound, a polymerization initiator, and a reactive binder; b) image-wise exposing the coating in a plate setter; c) optionally, heating the precursor in a pre-heating unit; d) developing the precursor off-press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the photopolymerizable layer from the support, wherein the reactive binder is a polymer containing a monomeric unit which includes a group having an ethylenically unsaturated bond.
    Type: Application
    Filed: November 9, 2006
    Publication date: September 17, 2009
    Applicant: AGFA GRAPHICS NV
    Inventors: Alexander Williamson, Marc Van Damme, Willi-Kurt Gries, Hubertus Van Aert
  • Publication number: 20090111052
    Abstract: A composition that is photopolymerizable upon absorption of light and/or heat, the composition including a binder, a polymerizable compound, a sensitizer, and a photoinitiator, characterized in that the composition includes, with respect to its non-volatile compounds, at least about 0.01 wt.-% of a polythiol compound, and wherein the composition when coated on a support has a sensitivity of about 150 ?J/cm2 or higher, in combination with a high hardness.
    Type: Application
    Filed: November 4, 2005
    Publication date: April 30, 2009
    Applicant: AGFA GRAPHICS NV
    Inventor: Alexander Williamson
  • Publication number: 20090104562
    Abstract: A composition that is photopolymerizable upon absorption of light and/or heat, the composition including a binder, a polymerizable compound, a sensitizer, and a photoinitiator, characterized in that the composition includes, with respect to its non-volatile compounds, at least about 0.01 wt.-% of a polythiol compound and has a very high sensitivity and hardness.
    Type: Application
    Filed: November 4, 2005
    Publication date: April 23, 2009
    Applicant: AGFA GRAPHICS NV
    Inventor: Alexander Williamson
  • Publication number: 20090047603
    Abstract: A method of making a lithographic printing plate includes the steps of: (a) providing a lithographic printing plate precursor including a support having a hydrophilic surface or which is provided with a hydrophilic layer, and a coating on the support, the coating including (i) at least one image-recording layer which includes a photocurable composition, the composition including a compound which is capable of forming free radicals upon image-wise exposure, and (ii) on top thereof, an oxygen-barrier layer including a water-soluble or water-swellable polymer, (b) image-wise exposing the coating, (c) optionally, heating the precursor in a pre-heating unit, (d) treating the image-wise exposed precursor with water or an aqueous solution to remove at least a portion of the oxygen-barrier layer, thereby increasing the oxygen permeability of the coating to such an extent that curing of the non-exposed areas of the coating by ambient light is inhibited by quenching of free radicals with oxygen, (e) mounting the treate
    Type: Application
    Filed: November 15, 2006
    Publication date: February 19, 2009
    Applicant: AGFA GRAPHICS NV
    Inventor: Alexander Williamson
  • Publication number: 20080311509
    Abstract: A photopolymer printing plate precursor includes a photosensitive coating on a support, wherein the photosensitive coating includes a composition that is photopolymerizable upon absorption of light, and the composition includes at least one binder, a polymerizable compound, a sensitizer, and a photoinitiator. The binder is a copolymer that has a Tg of less than 70° C., and wherein 1 mol-% to 50 mol-% of the monomeric units of the copolymer are substituted by at least one acidic group, has a very high sensitivity and resistance of the exposed image portions against alkaline developers, when exposed with a laser, even if no pre-heat step is performed.
    Type: Application
    Filed: August 18, 2006
    Publication date: December 18, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Alexander Williamson, Marc Van Damme, Wojciech Jaunky, Hubertus Van Aert
  • Publication number: 20080307990
    Abstract: A method of making a lithographic printing plate includes the steps of: a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including an imaging layer, and, optionally, an intermediate layer between the imaging layer and the support, wherein the imaging layer includes a switchable polymer, b) image-wise exposing the coating, whereby the polymer undergoes a chemical reaction induced by the exposing step thereby creating a lithographic image consisting of printing areas and non-printing areas wherein the non-printing areas are removable from the support by a gum solution, and c) developing the precursor by treating the coating of the precursor with the gum solution thereby removing the non-printing areas.
    Type: Application
    Filed: November 23, 2006
    Publication date: December 18, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Hieronymus Andriessen, Hubertus Van Aert, Alexander Williamson, Marc Van Damme
  • Publication number: 20080261154
    Abstract: A method of making a lithographic printing plate includes the steps of a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, b) image-wise exposing the coating in a plate setter, c) optionally, heating the precursor in a preheating unit, and d) developing the precursor off-press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the coating from the support, wherein the coating further includes a compound capable of interacting with the support, the compound being present in the photopolymerizable layer and/or in the intermediate layer.
    Type: Application
    Filed: November 9, 2006
    Publication date: October 23, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Alexander Williamson, Marc Van Damme, Willi-Kurt Gries
  • Patent number: 7439537
    Abstract: New divinylfluorene compounds according to one of formulae (II) or (III): a new synthetic route to divinylfluorene compounds; and the use of the new compounds as sensitizers, optical brighteners and electroluminescent materials.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 21, 2008
    Assignee: Agfa Graphics, N.V.
    Inventors: Alexander Williamson, Paul Callant
  • Publication number: 20080132505
    Abstract: Combination of one or more CB2 modulators and one or more PDE4 inhibitors, and method of treating conditions which are mediated by the activity of CB2 receptors or conditions which are mediated by PDE4.
    Type: Application
    Filed: February 1, 2005
    Publication date: June 5, 2008
    Inventors: Andrew James Brown, Helen Elizabeht Connor, Andrew John Eatherton, Gerard Martin Paul Giblin, Richard Howard Green, Jennifer Margaret Doughty, Karamjit Singh Jandu, Richard Graham Knowles, William Leonard Mitchell, Alan Naylor, Celestine Theresa O'Shaughnessy, Giovanni Palombi, Derek Anthony Rawlings, Brian Peter Slingsby, Catherine Jane Tralau-Stewart, Andrew Richard Whittington, Richard Alexander Williamson
  • Publication number: 20080026334
    Abstract: A photo-curable composition comprising a polymer or copolymer and a (meth)acrylate type monomer with more than one (meth)acrylate group per monomer molecule and two or more ethyleneoxy groups per (meth)acrylate group in said monomer is particularly suitable for use as a topcoat layer for phosphor or scintillator screens or panels, when said polymer is polymethyl methacrylate or a copolymer thereof.
    Type: Application
    Filed: June 13, 2007
    Publication date: January 31, 2008
    Inventors: Alexander Williamson, Estevan Tioni, Kristof Heylen
  • Publication number: 20080026155
    Abstract: A photo- or electron beam curable composition comprising a polymer or copolymer and a (meth)acrylate type monomer having at least three (meth)acrylate group per monomer molecule and at least one ethyleneoxy group per (meth)acrylate group in said monomer is suitable for use in the top-coat layer of a photostimulable phosphor screen comprising a support, a storage phosphor layer and an outermost top-coat, more particularly when said top-coat comprises a cellulose ester polymer.
    Type: Application
    Filed: June 13, 2007
    Publication date: January 31, 2008
    Inventors: Alexander Williamson, Paul Leblans
  • Publication number: 20070246662
    Abstract: In favor of adhesion a radiation image phosphor or scintillator panel comprises as an arrangement of layers, in consecutive order, an anodized aluminum support, a precoat layer and a phosphor or scintillator layer comprising needle-shaped phosphor or scintillator crystals, wherein said precoat layer has a thickness in the range from 4 ?m to 15 ?m when consisting of an organic polymer selected from the group consisting of cellyte, poly-acrylate, poly-methyl-methacrylate, poly-methylacrylate, polystyrene, polystyrene-acrylonitrile, polyurethane, hexafunctional polyacrylate, poly-vinylidene-difluoride, epoxy functionalized polymers or wherein said precoat layer has a thickness in the range from 1 ?m to less than 5 ?m when consisting of an organo-silane based polymer.
    Type: Application
    Filed: March 12, 2007
    Publication date: October 25, 2007
    Inventors: Jean-Pierre Tahon, Paul Leblans, Carlo Uyttendaele, Alexander Williamson
  • Patent number: 7241557
    Abstract: A composition that is photopolymerizable upon absorption of light in the wavelength range from 300 to 450 nm, the composition comprising a binder, a polymerizable compound, a sensitizer and a photoinitiator, wherein the sensitizer is a fluorene compound that is conjugated via a double or triple bond with an aromatic or heteroaromatic group, and is characterized by a high sensitivity.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: July 10, 2007
    Assignee: Agfa Graphics NV
    Inventors: Alexander Williamson, Paul Callant
  • Publication number: 20060207458
    Abstract: A method of lithographic printing includes the steps of (i) providing a heat-sensitive lithographic printing plate precursor including, on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a coating having a polymer modified with at least two groups which can form four hydrogen bonds, the groups being defined as quadruple hydrogen bonds (QHB groups); (ii) exposing the printing plate precursor to heat and/or infrared light whereby the coating switches from a hydrophilic state into a hydrophobic state or from a hydrophobic state into a hydrophilic state, thereby producing a lithographic printing master without an intermediate wet development step; and (iii) supplying ink and/or fountain solution to the lithographic printing master via a lithographic printing press.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 21, 2006
    Inventors: Lambertus Groenendaal, Hubertus Aert, Alexander Williamson, Hieronymus Andriessen
  • Publication number: 20060022193
    Abstract: New divinylfluorene compounds according to one of formulae (II) or (III): a new synthetic route to divinylfluorene compounds; and the use of the new compounds as sensitizers, optical brighteners and electroluminescent materials.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Applicant: AGFA-GEVAERT
    Inventors: Alexander Williamson, Paul Callant
  • Publication number: 20060024614
    Abstract: A composition that is photopolymerizable upon absorption of light in the wavelength range from 300 to 450 nm, the composition comprising a binder, a polymerizable compound, a sensitizer and a photoinitiator, wherein the sensitizer is a fluorene compound that is conjugated via a double or triple bond with an aromatic or heteroaromatic group, and is characterized by a high sensitivity.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Applicant: AGFA-GEVAERT
    Inventor: Alexander Williamson
  • Publication number: 20050266349
    Abstract: A method of making a lithographic printing plate comprising the steps of: a) providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a photopolymerizable coating on said support, b) image-wise exposing said coating in a plate setter, c) developing the precursor, thereby removing the non-exposed areas of the coating from the support, whereby the developing step is carried out off-press in a gumming unit by treating the coating of the precursor with a gum solution.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 1, 2005
    Applicant: Agfa-Gevaert
    Inventors: Marc Van Damme, Joan Vermeersch, Alexander Williamson, Willi-Kurt Gries
  • Publication number: 20050150881
    Abstract: Methods for producing glass substrates having scribed edges with straight and smooth ends substantially free of edge protrusions, and microarray glass substrates produced thereby, are provided. In certain embodiments, at least one scribe line is scribed in glass using reduced laser power at the beginning and end of each scribe line relative to the laser power used to scribe the remaining portions of each respective scribe line. In other embodiments, a heat absorbing laser element is positioned adjacent the beginning and end of each scribe line. In all embodiments, the scribed glass is singulated to produce a plurality of scribed glass pieces, each having straight and smooth ends substantially free of edge protrusions. The scribed glass can be used as substrates for biopolymeric microarrays. Also provided are biopolymeric microarrays produced from the subject methods and kits which include the subject microarrays, as well as methods for using the same.
    Type: Application
    Filed: February 28, 2005
    Publication date: July 14, 2005
    Inventors: Joseph Worrall, Alexander Williamson, John McEntee