Patents by Inventor Dirk Bollen

Dirk Bollen 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: 10676630
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier, and a dispersion-stabilizing compound according to Formulae I, II, III or IV, wherein Q represents the necessary atoms to form a substituted or unsubstituted a five or six membered heteroaromatic ring; M is selected from the group consisting of a proton, a monovalent cationic group and an acyl group; R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl or heteroaryl group, a hydroxyl group, a thioether, an ether, an ester, an amide, an amine, a halogen, a ketone and an aldehyde, R1 and R2 may represent the necessary atoms to form a five to seven membered ring; R3 to R5 are independently selected from the group consisting of a hydrogen, a
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 9, 2020
    Assignee: AGFA-GEVAERT
    Inventor: Dirk Bollen
  • Patent number: 10619066
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and less than 50 ?mol/g metal of an inorganic acid or a compound capable of generating such an acid during curing of a metallic layer or pattern formed from the dispersion. The presence of such small amounts an inorganic acid increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 14, 2020
    Assignee: AFGA-GEVAERT
    Inventors: Dirk Bollen, Nicolas Vriamont, Johan Loccufier
  • Publication number: 20190185686
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier and an optional binder, and a silane compound according to Formula I: wherein R1, R2 and R3 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, an alkoxy group and an aryloxy group with the proviso that at least one of R1 to R3 represents an alkoxy group or an aryloxy group, L1 represents a divalent linking group including one to 20 carbon atoms, A represents a thiol, a disulfide or a functional moiety comprising at least one thiol or disulfide, having no more than 10 carbon atoms, and n represents 0 or 1.
    Type: Application
    Filed: August 24, 2017
    Publication date: June 20, 2019
    Inventor: Dirk BOLLEN
  • Publication number: 20180371278
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a binder, and a liquid carrier, characterized in that the binder is a copolymer of vinyl chloride and a hydroxyfunctional monomer.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 27, 2018
    Inventors: Dirk BOLLEN, Hubertus VAN AERT
  • Publication number: 20180155566
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier, and an adhesion promoting compound, characterized in that the adhesion promoting compound is an acidic polyester.
    Type: Application
    Filed: May 25, 2016
    Publication date: June 7, 2018
    Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Hubertus VAN AERT
  • Publication number: 20180148593
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a binder and a liquid carrier, characterized in that the binder is a vinylidene chloride copolymer including 90 wt % or less of vinylidene chloride based on the total weight of the binder.
    Type: Application
    Filed: May 25, 2016
    Publication date: May 31, 2018
    Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Hubertus VAN AERT
  • Patent number: 9839961
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and a compound according to Formula I, wherein X represents the necessary atoms to form a substituted or unsubstituted ring. The presence of small amounts of the compound according to Formula I increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: December 12, 2017
    Assignee: AGFA GEVAERT
    Inventors: Johan Loccufier, Nicolas Vriamont, Dirk Bollen
  • Publication number: 20170349773
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier, and a dispersion-stabilizing compound according to Formulae I, II, III or IV, wherein Q represents the necessary atoms to form a substituted or unsubstituted a five or six membered heteroaromatic ring; M is selected from the group consisting of a proton, a monovalent cationic group and an acyl group; R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl or heteroaryl group, a hydroxyl group, a thioether, an ether, an ester, an amide, an amine, a halogen, a ketone and an aldehyde, R1 and R2 may represent the necessary atoms to form a five to seven membered ring; R3 to R5 are independently selected from the group consisting of a hydrogen, a
    Type: Application
    Filed: December 10, 2015
    Publication date: December 7, 2017
    Inventor: Dirk BOLLEN
  • Patent number: 9771485
    Abstract: A metallic nanoparticle dispersion includes a dispersion medium characterized in that the dispersion medium includes a solvent according to Formula I, wherein R1 and R2 represent an optionally substituted alkyl group, and R1 and R2 may form a ring. When using a solvent according to Formula I as a dispersion medium, no polymeric dispersants are necessary to obtain stable metallic nanoparticle dispersions.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 26, 2017
    Assignee: AGFA-GEVAERT
    Inventors: Xavier Andre, Dirk Bollen
  • Patent number: 9624386
    Abstract: A method to prepare a metallic nanoparticle dispersion includes the steps of forming a metallic precursor dispersion or solution by adding a metallic precursor to a dispersion medium including: (a) a solvent according to Formula I, and wherein R1 and R2 represent an optionally substituted alkyl group, R1 and R2 may form a ring, (b) a carboxylic acid according to Formula II, R—COOH?? Formula II wherein R is an optionally substituted C2-C7 alkyl, alkenyl or alkynyl group, reducing the metallic precursor with a reducing agent to form metallic nanoparticles, sedimenting the metallic nanoparticles to obtain a highly concentrated metallic nanoparticle dispersion comprising at least 15 wt % of metallic nanoparticles.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 18, 2017
    Assignee: AGFA GEVAERT
    Inventors: Dirk Bollen, Nicolas Vriamont, Jaroslav Katona
  • Publication number: 20160108272
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and less than 50 ?mol/g metal of an inorganic acid or a compound capable of generating such an acid during curing of a metallic layer or pattern formed from the dispersion. The presence of such small amounts an inorganic acid increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Application
    Filed: July 1, 2014
    Publication date: April 21, 2016
    Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Johan LOCCUFIER
  • Publication number: 20160082516
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles and a compound according to Formula I, wherein X represents the necessary atoms to form a substituted or unsubstituted ring. The presence of small amounts of the compound according to Formula I increases the conductivity of metallic layers or patterns formed from the metallic nanoparticle dispersions at moderate curing conditions.
    Type: Application
    Filed: July 2, 2014
    Publication date: March 24, 2016
    Inventors: Johan LOCCUFIER, Nicolas VRIAMONT, Dirk BOLLEN
  • Publication number: 20160083594
    Abstract: A method of preparing a conductive metallic layer or pattern includes the steps of applying a metallic nanoparticle dispersion on a support to obtain a metallic layer or pattern, and contacting the metallic layer or pattern with a solution containing an acid or an acid precursor capable of releasing the acid during curing of the metallic layer or pattern. It has been observed that by contacting the metallic layer or pattern with a solution containing an acid or an acid precursor capable of releasing the acid, higher conductivities at moderate curing conditions are obtained.
    Type: Application
    Filed: July 2, 2014
    Publication date: March 24, 2016
    Inventors: Dirk BOLLEN, Nicolas VRIAMONT
  • Patent number: 9275773
    Abstract: The present invention relates to a dispersion comprising metallic, metal oxide or metal precursor nanoparticles and a polymeric dispersant, the dispersant comprising an anchor group with affinity for the metallic, metal oxide or metal precursor nanoparticles that is chemically bonded to a polymeric backbone characterized in that the dispersant has a 95 wt. % decomposition at a temperature below 300° C. as measured by Thermal Gravimetric Analysis. It further relates to metallic fluids or inks prepared from the dispersion and to the preparation of the dispersion and the metallic fluid or inks.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 1, 2016
    Assignee: Agfa-Gevaert N.V.
    Inventors: Xavier André, Dirk Bollen, Johan Loccufier
  • Patent number: 9243159
    Abstract: A dispersion includes metallic, metal oxide, or metal precursor nanoparticles; a thermally cleavable polymeric dispersant; an optional dispersion medium; and a thermally cleavable agent. Pastes, coated layers, and patterns may contain the dispersion. A method for producing the specific thermally cleavable dispersant and for producing the metallic nanoparticle dispersions. The dispersions allow the reduction or avoidance of organic residue in coated layers and patterns on substrates, the use substrates of low thermal resistance, and faster processing times.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 26, 2016
    Assignee: AGFA-GEVAERT
    Inventors: Xavier André, Dirk Bollen
  • Patent number: 9240258
    Abstract: A dispersion includes metallic, metal oxide, or metal precursor nanoparticles; a thermally cleavable polymeric dispersant; an optional dispersion medium; and a thermally cleavable agent. Pastes, coated layers, and patterns may contain the dispersion. A method for producing the specific thermally cleavable dispersant and for producing the metallic nanoparticle dispersions. The dispersions allow the reduction or avoidance of organic residue in coated layers and patterns on substrates, the use substrates of low thermal resistance, and faster processing times.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 19, 2016
    Assignee: AGFA-GEVAERT
    Inventors: Xavier André, Dirk Bollen
  • Publication number: 20150368483
    Abstract: A method to prepare a metallic nanoparticle dispersion includes the steps of forming a metallic precursor dispersion or solution by adding a metallic precursor to a dispersion medium including: (a) a solvent according to Formula I, and wherein R1 and R2 represent an optionally substituted alkyl group, R1 and R2 may form a ring, (b) a carboxylic acid according to Formula II, R—COOH??Formula II wherein R is an optionally substituted C2-C7 alkyl, alkenyl or alkynyl group, reducing the metallic precursor with a reducing agent to form metallic nanoparticles, sedimenting the metallic nanoparticles to obtain a highly concentrated metallic nanoparticle dispersion comprising at least 15 wt % of metallic nanoparticles.
    Type: Application
    Filed: March 18, 2014
    Publication date: December 24, 2015
    Applicant: AGFA GEVAERT
    Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Jaroslav KATONA
  • Publication number: 20150159029
    Abstract: A metallic nanoparticle dispersion includes a dispersion medium characterized in that the dispersion medium includes a solvent according to Formula I, wherein —R1 and R2 represent an optionally substituted alkyl group, and R1 and R2 may form a ring. When using a solvent according to Formula I as a dispersion medium, no polymeric dispersants are necessary to obtain stable metallic nanoparticle dispersions.
    Type: Application
    Filed: June 5, 2013
    Publication date: June 11, 2015
    Inventors: Xavier André, Dirk Bollen
  • Publication number: 20150017405
    Abstract: A dispersion includes metallic, metal oxide, or metal precursor nanoparticles; a thermally cleavable polymeric dispersant an optional dispersion medium; and a thermally cleavable agent. Pastes, coated layers, and patterns may contain the dispersion. A method for producing the specific thermally cleavable dispersant and for producing the metallic nanoparticle dispersions. The dispersions allow the reduction or avoidance of organic residue in coated layers and patterns on substrates, the use substrates of low thermal resistance, and faster processing times.
    Type: Application
    Filed: December 17, 2012
    Publication date: January 15, 2015
    Applicant: AGFA-GEVAERT
    Inventors: Xavier André, Dirk Bollen
  • Publication number: 20140329067
    Abstract: A dispersion includes metallic, metal oxide, or metal precursor nanoparticles; a thermally cleavable polymeric dispersant; an optional dispersion medium; and a thermally cleavable agent. Pastes, coated layers, and patterns may contain the dispersion. A method for producing the specific thermally cleavable dispersant and for producing the metallic nanoparticle dispersions. The dispersions allow the reduction or avoidance of organic residue in coated layers and patterns on substrates, the use substrates of low thermal resistance, and faster processing times.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 6, 2014
    Inventors: Xavier André, Dirk Bollen