Patents by Inventor Dirk Kokkelenberg

Dirk Kokkelenberg 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: 10767063
    Abstract: An aqueous inkjet ink for forming a colour upon heat treatment includes a) an immobilized leuco dye; b) a colour developing agent or colour developing agent precursor; and c) optionally an opthothermal converting agent; wherein the leuco dye is immobilized by being covalently bonded to polymeric particles or by being included in the core of capsules composed of a polymeric shell surrounding a core.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: September 8, 2020
    Assignee: AGFA-Gevaert NV
    Inventors: Johan Loccufier, Fabienne Goethals, Hubertus Van Aert, Dirk Kokkelenberg
  • Patent number: 10286708
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) capsules composed of a polymeric shell surrounding a core; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that the core of the capsule contains a leuco dye.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 14, 2019
    Assignee: AGFA-GEVAERT
    Inventors: Fabienne Goethals, Johan Loccufier, Dirk Kokkelenberg, Lionel Petton
  • Patent number: 10150327
    Abstract: A laser markable material includes a laser markable layer, present as a self-supporting layer or as a layer on a support, the laser markable layer including an infrared absorbing dye and an infrared absorbing pigment, characterized in that the amount of the infrared absorbing pigment is between 10 ppm and 1000 ppm relative to the total dry weight of the laser markable layer.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: December 11, 2018
    Assignee: AGFA-GEVAERT
    Inventors: Dirk Kokkelenberg, Marin Steenackers, Peter Bries
  • Publication number: 20180345709
    Abstract: A method of manufacturing a packaging, optionally preprinted by flexo or offset, includes the steps of applying one or more laser markable compositions on at least a part of a packaging, and forming a colour image by laser marking the one or more applied laser markable compositions, characterized in that the laser markable compositions include a leucodye, a developing agent or developing agent precursor, and optionally an optothermal converting agent. The method is especially suited for manufacturing a packaging selected from the group consisting of a food packaging, a drink packaging, a cosmetical packaging and a pharmaceutical packaging.
    Type: Application
    Filed: November 29, 2016
    Publication date: December 6, 2018
    Inventors: Johan LOCCUFIER, Fabienne GOETHALS, Dirk KOKKELENBERG, Hubertus VAN AERT
  • Patent number: 10144239
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) polymeric particles dispersed in the aqueous medium; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that a leuco dye is covalently bonded to the polymeric particles.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: December 4, 2018
    Assignee: AGFA-GEVAERT
    Inventors: Hubertus Van Aert, Johan Loccufier, Dirk Kokkelenberg
  • Patent number: 10144238
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) a leuco dye; (c) an optothermal converting agent; and (d) a color developing agent, characterized in that the color developing agent is a polymer particle capable of forming an acid upon exposure to heat.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: December 4, 2018
    Assignee: AGFA-GEVAERT
    Inventors: Dirk Kokkelenberg, Lionel Petton, Johan Loccufier, Fabienne Goethals
  • Publication number: 20180201798
    Abstract: An aqueous inkjet ink for forming a colour upon heat treatment includes a) an immobilized leuco dye; b) a colour developing agent or colour developing agent precursor; and c) optionally an opthothermal converting agent; wherein the leuco dye is immobilized by being covalently bonded to polymeric particles or by being included in the core of capsules composed of a polymeric shell surrounding a core.
    Type: Application
    Filed: May 18, 2016
    Publication date: July 19, 2018
    Applicant: AGFA-GEVAERT
    Inventors: Johan LOCCUFIER, Fabienne GOETHALS, Hubertus VAN AERT, Dirk KOKKELENBERG
  • Publication number: 20180154667
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) capsules composed of a polymeric shell surrounding a core; (c) a colour developing agent or colour developing agent precursor; and (d) an optothermal converting agent; characterized in that the core of the capsule contains a leuco dye.
    Type: Application
    Filed: May 18, 2016
    Publication date: June 7, 2018
    Applicant: AGFA-GEVAERT
    Inventors: Fabienne GOETHALS, Johan LOCCUFIER, Dirk KOKKELENBERG, Lionel PETTON
  • Publication number: 20180134056
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) polymeric particles dispersed in the aqueous medium; (c) a colour developing agent or colour developing agent precursor; and (d) an optothermal converting agent; characterized in that a leuco dye is covalently bonded to the polymeric particles.
    Type: Application
    Filed: May 11, 2016
    Publication date: May 17, 2018
    Inventors: Hubertus VAN AERT, Johan LOCCUFIER, Dirk KOKKELENBERG
  • Publication number: 20180134055
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) a leuco dye; (c) an optothermal converting agent; and (d) a colour developing agent, characterized in that the colour developing agent is a polymer particle capable of forming an acid upon exposure to heat.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 17, 2018
    Inventors: Dirk KOKKELENBERG, Lionel PETTON, Johan LOCCUFIER, Fabienne GOETHALS
  • Publication number: 20170120662
    Abstract: A laser markable material includes a laser markable layer, present as a self-supporting layer or as a layer on a support, the laser markable layer including an infrared absorbing dye and an infrared absorbing pigment, characterized in that the amount of the infrared absorbing pigment is between 10 ppm and 1000 ppm relative to the total dry weight of the laser markable layer.
    Type: Application
    Filed: June 12, 2015
    Publication date: May 4, 2017
    Inventors: Dirk KOKKELENBERG, Marin STEENACKERS, Peter BRIES
  • Patent number: 9597913
    Abstract: The invention relates to an image receiving material for offset printing comprising a support and an image receiving layer, the image receiving layer comprising a porous pigment and an aqueous dispersion of a polymer particle characterized in that the image receiving layer further comprises a copolymer comprising alkylene and vinyl alcohol units.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 21, 2017
    Assignee: Agfa-Gevaert NV
    Inventors: Dirk Quintens, Dirk Kokkelenberg
  • Publication number: 20130209783
    Abstract: The invention relates to an image receiving material for offset printing comprising a support and an image receiving layer, the image receiving layer comprising a porous pigment and an aqueous dispersion of a polymer particle characterized in that the image receiving layer further comprises a copolymer comprising alkylene and vinyl alcohol units.
    Type: Application
    Filed: November 24, 2011
    Publication date: August 15, 2013
    Applicant: AGFA-GEVAERT N.V.
    Inventors: Dirk Quintens, Dirk Kokkelenberg
  • Patent number: 8357447
    Abstract: A printable paper comprising a water-resistant support having two optionally subbed sides and a single layer on at least one of said optionally subbed sides, wherein said single layer has no substantial compositional variation, has a layer thickness of at least 3 ?m, a pore volume of at least 1.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: January 22, 2013
    Assignee: Agfa-Gevaert N.V.
    Inventors: Dirk Quintens, Dirk Kokkelenberg
  • Publication number: 20090095184
    Abstract: A heat-sensitive negative-working lithographic printing plate precursor includes a support having a hydrophilic surface or which is provided with a hydrophilic layer and a coating provided thereon, the coating including an image-recording layer which includes hydrophobic thermoplastic polymer particles wherein the hydrophobic thermoplastic polymer particles include a polyester and have an average particle diameter from 18 nm to 50 nm.
    Type: Application
    Filed: February 21, 2007
    Publication date: April 16, 2009
    Applicant: AGFA GRAPHICS NV
    Inventors: Joan Vermeersch, Dirk Kokkelenberg, Hubertus Van Aert
  • Patent number: 7473516
    Abstract: A method of making a lithographic printing plate includes the steps of: providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which includes hydrophobic thermoplastic polymer particles; exposing the coating to heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; and developing the precursor by applying a gum solution to the coating, thereby removing non-exposed areas of the coating from the support. According to the above method, the plate precursor can be developed and gummed in a single step.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 6, 2009
    Assignee: Agfa Graphics NV
    Inventors: Joseph Vander Aa, Joan Vermeersch, Dirk Kokkelenberg, Huub Van Aert
  • Patent number: 7354696
    Abstract: A method for making a lithographic printing plate is disclosed which comprises the steps of: (i) providing a negative-working, heat-sensitive lithographic printing plate precursor comprising a support having a hydrophilic surface or which is provided with a hydrophilic layer and a coating provided thereon, the coating comprising an image-recording layer which comprises hydrophobic thermoplastic polymer particles and a hydrophilic binder, ?wherein the hydrophobic thermoplastic polymer particles have an average particle size in the range from 45 nm to 63 nm and wherein the amount of the hydrophobic thermoplastic polymer particles in the image-recording layer is at least 70% by weight relative to the image-recording layer; (ii) exposing the coating to heat or infrared light, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; (iii) developing the precursor by applying an aqueous, alkaline solution, thereby removing non-exposed areas of the coating from the supp
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 8, 2008
    Assignee: Agfa Graphics NV
    Inventors: Joan Vermeersch, Pascal Meeus, Dirk Kokkelenberg
  • Publication number: 20080076067
    Abstract: A method of making a lithographic printing plate includes the steps of: providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which includes hydrophobic thermoplastic polymer particles; exposing the coating to heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; and developing the precursor by applying a gum solution to the coating, thereby removing non-exposed areas of the coating from the support. According to the above method, the plate precursor can be developed and gummed in a single step.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 27, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Joseph VANDER AA, Joan VERMEERSCH, Dirk KOKKELENBERG, Huub VAN AERT
  • Patent number: 7316891
    Abstract: A method of making a lithographic printing plate is disclosed which comprises the steps of providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which comprises hydrophobic thermoplastic polymer particles; exposing the coating to heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; developing the precursor by applying a gum solution to the coating, thereby removing non-exposed areas of the coating from the support. According to the above method, the plate precursor can be developed and gummed in a single step.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: January 8, 2008
    Assignee: Agfa Graphics NV
    Inventors: Joseph Vander Aa, Joan Vermeersch, Dirk Kokkelenberg, Huub Van Aert
  • Patent number: 7195861
    Abstract: A method for making a heat-sensitive negative-working lithographic printing plate precursor is disclosed comprising the steps of (i) preparing a coating solution comprising hydrophobic thermoplastic polymer particles and a hydrophilic binder; (ii) applying said coating solution on a support having a hydrophilic surface or which is provided with a hydrophilic layer, thereby obtaining an image-recording layer; (iii) drying said image-recording layer; characterized in that said hydrophobic thermoplastic polymer particles have an average particle size in the range from 45 nm to 63 nm, and that the amount of said hydrophobic thermoplastic polymer particles in the image-recording layer is at least 70% by weight relative to the dried image-recording layer.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 27, 2007
    Assignee: AGFA-Gevaert
    Inventors: Joan Vermeersch, Dirk Kokkelenberg, Huub Van Aert