Patents by Inventor Frank Louwet

Frank Louwet 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: 20210017068
    Abstract: A method of manufacturing an etched glass article including the steps of jetting an image with a UV curable inkjet ink on a surface of the glass article; curing the image; etching the surface not covered by the UV cured image to obtain an etched image; and solubilising the UV cured image in an aqueous alkaline solution.
    Type: Application
    Filed: February 24, 2017
    Publication date: January 21, 2021
    Inventors: Rita TORFS, Frank LOUWET, Johan LOCCUFIER, Mark LENS
  • Patent number: 10793468
    Abstract: A method of manufacturing an etched glass article includes the steps of jetting an image with a UV curable inkjet ink on a surface of the glass article; UV curing the image; etching the surface not covered by the UV cured image to obtain an etched image; and removing the UV cured image in an aqueous alkaline solution; wherein the UV curable inkjet ink includes a polymerizable composition, wherein at least 80 wt % of the polymerizable composition consists of: a) 15.0 to 70.0 wt % of an acryl amide; b) 20.0 to 75.0 wt % of a polyfunctional acrylate; and c) 1.0 to 15.0 wt % of a (meth)acrylate containing a carboxylic acid group, a phosphoric acid group or a phosphonic acid group-; with all weight percentages (wt %) based on the total weight of the polymerizable composition.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 6, 2020
    Inventors: Rita Torfs, Frank Louwet, Johan Loccufier, Mark Lens
  • Publication number: 20190084872
    Abstract: A method of manufacturing an etched glass article includes the steps of jetting an image with a UV curable inkjet ink on a surface of the glass article; UV curing the image; etching the surface not covered by the UV cured image to obtain an etched image; and removing the UV cured image in an aqueous alkaline solution; wherein the UV curable inkjet ink includes a polymerizable composition, wherein at least 80 wt % of the polymerizable composition consists of: a) 15.0 to 70.0 wt % of an acryl amide; b) 20.0 to 75.0 wt % of a polyfunctional acrylate; and c) 1.0 to 15.0 wt % of a (meth)acrylate containing a carboxylic acid group, a phosphoric acid group or a phosphonic acid group; with all weight percentages (wt %) based on the total weight of the polymerizable composition.
    Type: Application
    Filed: February 24, 2017
    Publication date: March 21, 2019
    Inventors: Rita TORFS, Frank LOUWET, Johan LOCCUFIER, Mark LENS
  • Publication number: 20190031558
    Abstract: A method of manufacturing an etched glass article includes the steps of jetting an image with a UV curable inkjet ink on a surface of a glass article; UV curing the image; etching the surface not covered by the UV cured image to obtain an etched image; and removing the UV cured image; wherein a time between jetting and curing the image is at least 50 ms.
    Type: Application
    Filed: February 24, 2017
    Publication date: January 31, 2019
    Inventors: Rita TORFS, Frank LOUWET, Johan LOCCUFIER, Mark LENS
  • Patent number: 7989032
    Abstract: A composition comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene as a solution or as a dispersion in a liquid medium and at least one compound with at least two vinyl groups, wherein said liquid medium comprises at least one non-aqueous solvent and has less than 30% by weight of water; and said composition comprises more than 0.1% by weight of the polymer or copolymer of a substituted or unsubstituted thiophene and is capable of UV-photopolymerization due to said composition comprising at least one vinyl-compound capable of initiating UV-photopolymerization and/or at least one UV-photoinitiator; an ink with the composition of the composition; a process for preparing the composition; a process for producing a layer or pattern on an object with the composition; and a layer, pattern or print produced therewith.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: August 2, 2011
    Assignee: Agfa Gevaert
    Inventors: Frank Louwet, Louis Bollens
  • Patent number: 7932320
    Abstract: An aqueous dispersion of latex particles, said latex particles containing a polymer containing monomer units according to formula (I): in which R1 and R2 independently of one another represent hydrogen or a C1-5-alkyl group or together form an optionally substituted C1-5-alkylene residue and at least one polyanion compound.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: April 26, 2011
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Frank Louwet, Bert Groenendaal
  • Patent number: 7820078
    Abstract: Disclosed are a light-emitting diode, a photovoltaic device, a transistor, and an electroluminescent device, each comprising a layer disposed on a support, the layer comprising a [A] composition exclusive of hydroquinone comprising at least one polymer comprising (3,4-dialkoxythiophene) monomer units, a polyanion, at least one polyhydroxy group-containing aromatic compound exclusive of sulfo groups, at least one amino-compound or heterocyclic compound with at least one ring nitrogen atom, and at least one compound selected from the group consisting of polyhydroxy- and/or carboxy group or amide or lactam group containing aliphatic compounds and aprotic compounds with a dielectric constant ?15.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: October 26, 2010
    Assignee: Agfa Graphics, N.V.
    Inventor: Frank Louwet
  • Patent number: 7678845
    Abstract: A pigment dispersion includes a pigment and a block copolymer having ionic aromatic monomers. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers. A process for preparing the pigment dispersion is also disclosed.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: March 16, 2010
    Assignee: Agfa Graphics NV
    Inventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
  • Patent number: 7674843
    Abstract: A pigment dispersion includes a pigment with at least one carboxylic acid group and a block copolymer including aromatic monomers having at least one carboxylic acid group or a salt thereof and aromatic monomers having at least one sulfonic acid group or a salt thereof. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: March 9, 2010
    Assignee: Agfa Graphics NV
    Inventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
  • Publication number: 20090148722
    Abstract: Disclosed are a light-emitting diode, a photovoltaic device, a transistor, and an electroluminescent device, each comprising a layer disposed on a support, the layer comprising a [A] composition exclusive of hydroquinone comprising at least one polymer comprising (3,4-dialkoxythiophene) monomer units, a polyanion, at least one polyhydroxy group-containing aromatic compound exclusive of sulfo groups, at least one amino-compound or heterocyclic compound with at least one ring nitrogen atom, and at least one compound selected from the group consisting of polyhydroxy- and/or carboxy group or amide or lactam group containing aliphatic compounds and aprotic compounds with a dielectric constant ?15.
    Type: Application
    Filed: April 23, 2008
    Publication date: June 11, 2009
    Inventor: Frank Louwet
  • Publication number: 20080290324
    Abstract: A composition exclusive of hydroquinone comprising at least one polymer comprising (3,4-dialkoxythiophene) monomer units, in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, a polyanion, at least one aromatic compound exclusive of sulfo groups and containing at least two hydroxy groups and at least one polyhydroxy- and/or carboxy group or amide or lactam group containing aliphatic compound and/or at least one aprotic compound with a dielectric constant ?15; and a layer configuration on a support, said layer configuration comprising a layer exclusive of hydroquinone comprising at least one polymer comprising optionally substituted (3,4-dialkoxythiophene) monomer units, in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, a polyanion, at least one aromatic compound exclusive of sulfo groups and containing at least two hydroxy groups and at least one pol
    Type: Application
    Filed: November 2, 2007
    Publication date: November 27, 2008
    Inventors: FRANK LOUWET, Louis Bollens
  • Publication number: 20080188612
    Abstract: A pigment dispersion includes a pigment and a block copolymer having ionic aromatic monomers. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers. A process for preparing the pigment dispersion is also disclosed.
    Type: Application
    Filed: January 26, 2006
    Publication date: August 7, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
  • Publication number: 20080167411
    Abstract: A pigment dispersion includes a pigment with at least one carboxylic acid group and a block copolymer including aromatic monomers having at least one carboxylic acid group or a salt thereof and aromatic monomers having at least one sulfonic acid group or a salt thereof. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 10, 2008
    Applicant: AGFA GRAPHICS NV
    Inventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
  • Patent number: 7378039
    Abstract: A process for preparing an aqueous or non-aqueous solution or dispersion of a polythiophene or thiophene copolymer, containing structural units according to formula (I): in which R1 and R2 independently of one another represent hydrogen or a C1-5-alkyl group or together form an optionally substituted C1-5-alkylene residue, comprising the step of: preparing the polythiophene or thiophene copolymer with an initiator in a reaction is medium in the presence of polyanions under oxidizing or reducing conditions under an inert atmosphere such that when said initiator is added less than 3 mg of oxygen per litre of the reaction medium is present in the reaction medium; an aqueous or non-aqueous solution or dispersion prepared therewith; the use of an aqueous or non-aqueous dispersion or solution comprising the aqueous or non-aqueous solution or dispersion of a polythiophene or thiophene copolymer for coating an object; a printable paste containing the aqueous or non-aqueous solution or dispersion of a polythiophen
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: May 27, 2008
    Assignee: Agfa-Gevaert
    Inventors: Frank Louwet, Bert Groenendaal
  • Publication number: 20080050534
    Abstract: A composition comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene as a solution or as a dispersion in a liquid medium and at least one compound with at least two vinyl groups, wherein said liquid medium comprises at least one non-aqueous solvent and has less than 30% by weight of water; and said composition comprises more than 0.1% by weight of the polymer or copolymer of a substituted or unsubstituted thiophene and is capable of UV-photopolymerization due to said composition comprising at least one vinyl-compound capable of initiating UV-photopolymerization and/or at least one UV-photoinitiator; an ink with the composition of the composition; and a process for producing a layer or pattern on an object with the composition.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 28, 2008
    Applicant: AGFA-GEVAERT
    Inventors: Frank Louwet, Louis Bollens
  • Publication number: 20080017833
    Abstract: An aqueous dispersion of latex particles, said latex particles containing a polymer containing monomer units according to formula (I): in which R1 and R2 independently of one another represent hydrogen or a C1-5-alkyl group or together form an optionally substituted C1-5-alkylene residue and at least one polyanion compound, said latex having a primary particle size of less than 40 nm and said dispersion contains an organic compound containing a di- or polyhydroxy- and/or carboxy groups or amide or lactam group or an aprotic compound with a dielectric constant, ?, ?15, wherein said latex particles contain said at least one polyanion compound and said polymer in a weight ratio of at least 4; a process for preparing an electroconductive coating comprising the steps of: preparing an aqueous solution or dispersion of the above-mentioned polymer by polymerization with an initiator in a reaction medium in the presence of at least one polyanion compound under oxidizing or reducing conditions, wherein the weight
    Type: Application
    Filed: May 16, 2007
    Publication date: January 24, 2008
    Applicant: AGFA-GEVAERT
    Inventors: Frank Louwet, Bert Groenendaal
  • Patent number: 7223357
    Abstract: A method for preparing a composition containing between 0.08 and 3.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: May 29, 2007
    Assignee: AGFA-Gevaert
    Inventors: Jean-Pierre Tahon, Roger Van den Bogaert, Bert Groenendaal, Frank Louwet
  • Patent number: 7179768
    Abstract: A thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element comprising at least one substantially light-insensitive organic silver salt, at least one organic reducing agent therefor in thermal working relationship therewith, at least one binder and at least one toning agent represented by formula (I): wherein X represents the optionally substituted atoms necessary to form a 6-membered ring.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: February 20, 2007
    Assignee: Agfa-Gevaert
    Inventors: Carlo Uyttendaele, Johan Loccufier, Frank Louwet
  • Patent number: 7147936
    Abstract: A layer configuration on a support, the layer configuration comprising a layer containing a polymer containing optionally substituted 3,4-alkylenedioxythiophene structural units, in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge, and a compound selected from the group consisting of polyphosphoric acids, polyphosphoric acid salts, thia-alkanedicarboxylic acids, cyclohexadiene compounds and polyhydroxy-compounds selected from the group consisting of tetronic acid derivatives; ortho-dihydroxybenzene compounds with at least one sulpho group, compounds according to formula (I): HO—CH2—CH(OH)—(CH2)m—S—CH2—C(R1)(R2)—CH2—S—(CH2)n—CH(OH)—CH2—OH??(I) wherein R1 and R2 are independently H, —OH or alkyl, and n and m are independently 1, 2 or 3; compounds according to formula (II): HO—(CH2)p—S—CH2—S—(CH2)q—OH??(II) wherein p and q are independently 2, 3 or 4; compounds hydrolyzable to tetronic acid derivatives; compounds hydrolyzable to
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: December 12, 2006
    Assignee: Agfa Gevaert
    Inventors: Frank Louwet, Geert Van Dyck, Johan Loccufier, Bert Groenendaal, Hieronymus Andriessen
  • Patent number: 7122130
    Abstract: A method for preparing a composition containing between 0.08 and 3.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: October 17, 2006
    Assignee: Agfa Gevaert
    Inventors: Jean-Piere Tahon, Roger Van den Bogaert, Bert Groenendaal, Frank Louwet