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).
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Patent number: 11098207Abstract: 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: GrantFiled: August 24, 2017Date of Patent: August 24, 2021Assignee: AGFA-GEVAERT NVInventor: Dirk Bollen
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Publication number: 20210253887Abstract: A conductive ink comprising metallic nanoparticles, a liquid carrier and an optional binder, characterized in that liquid carrier includes between 0.5 and 7.5 wt % of a solvent selected from water and a compound comprising at least two hydroxyl groups.Type: ApplicationFiled: May 6, 2019Publication date: August 19, 2021Inventor: Dirk Bollen
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Patent number: 10676630Abstract: 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, aType: GrantFiled: December 10, 2015Date of Patent: June 9, 2020Assignee: AGFA-GEVAERTInventor: Dirk Bollen
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Patent number: 10619066Abstract: 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: GrantFiled: July 1, 2014Date of Patent: April 14, 2020Assignee: AFGA-GEVAERTInventors: Dirk Bollen, Nicolas Vriamont, Johan Loccufier
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Publication number: 20190185686Abstract: 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: ApplicationFiled: August 24, 2017Publication date: June 20, 2019Inventor: Dirk BOLLEN
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Publication number: 20180371278Abstract: 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: ApplicationFiled: December 9, 2016Publication date: December 27, 2018Inventors: Dirk BOLLEN, Hubertus VAN AERT
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Publication number: 20180155566Abstract: 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: ApplicationFiled: May 25, 2016Publication date: June 7, 2018Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Hubertus VAN AERT
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Publication number: 20180148593Abstract: 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: ApplicationFiled: May 25, 2016Publication date: May 31, 2018Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Hubertus VAN AERT
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Patent number: 9839961Abstract: 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: GrantFiled: July 2, 2014Date of Patent: December 12, 2017Assignee: AGFA GEVAERTInventors: Johan Loccufier, Nicolas Vriamont, Dirk Bollen
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Publication number: 20170349773Abstract: 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, aType: ApplicationFiled: December 10, 2015Publication date: December 7, 2017Inventor: Dirk BOLLEN
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Patent number: 9771485Abstract: 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: GrantFiled: June 5, 2013Date of Patent: September 26, 2017Assignee: AGFA-GEVAERTInventors: Xavier Andre, Dirk Bollen
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Patent number: 9624386Abstract: 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: GrantFiled: March 18, 2014Date of Patent: April 18, 2017Assignee: AGFA GEVAERTInventors: Dirk Bollen, Nicolas Vriamont, Jaroslav Katona
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Publication number: 20160108272Abstract: 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: ApplicationFiled: July 1, 2014Publication date: April 21, 2016Inventors: Dirk BOLLEN, Nicolas VRIAMONT, Johan LOCCUFIER
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Publication number: 20160082516Abstract: 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: ApplicationFiled: July 2, 2014Publication date: March 24, 2016Inventors: Johan LOCCUFIER, Nicolas VRIAMONT, Dirk BOLLEN
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Publication number: 20160083594Abstract: 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: ApplicationFiled: July 2, 2014Publication date: March 24, 2016Inventors: Dirk BOLLEN, Nicolas VRIAMONT
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Patent number: 9275773Abstract: 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: GrantFiled: December 19, 2011Date of Patent: March 1, 2016Assignee: Agfa-Gevaert N.V.Inventors: Xavier André, Dirk Bollen, Johan Loccufier
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Patent number: 9243159Abstract: 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: GrantFiled: December 18, 2012Date of Patent: January 26, 2016Assignee: AGFA-GEVAERTInventors: Xavier André, Dirk Bollen
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Patent number: 9240258Abstract: 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: GrantFiled: December 17, 2012Date of Patent: January 19, 2016Assignee: AGFA-GEVAERTInventors: Xavier André, Dirk Bollen
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Publication number: 20150368483Abstract: 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: ApplicationFiled: March 18, 2014Publication date: December 24, 2015Applicant: AGFA GEVAERTInventors: Dirk BOLLEN, Nicolas VRIAMONT, Jaroslav KATONA
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Publication number: 20150159029Abstract: 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: ApplicationFiled: June 5, 2013Publication date: June 11, 2015Inventors: Xavier André, Dirk Bollen