AGFA-GEVAERT NV Patent applications |
Patent application number | Title | Published |
20150064606 | ASSEMBLY OF A POROUS METAL DIFFUSION SUBSTRATE AND A POLYMERIC SEPARATOR MEMBRANE - The invention relates to an assembly of a porous metallic gas diffusion substrate and a polymeric separator membrane for use in an alkaline electrolyser or alkaline fuel cell. The polymeric separator membrane of the assembly comprises inorganic hydrophilic particulates dispersed in an organic polymeric binder. The polymeric separator membrane is gas tight when filled with electrolyte. The polymeric separator membrane is penetrating into at least a top portion of the porous metallic gas diffusion substrate. Also disclosed is a method to produce such an assembly via coating a paste on a porous metallic gas diffusion substrate. | 03-05-2015 |
20140285612 | Method of Producing Security Document - A security document having in order a) a first laser markable layer, present as a self-supporting layer or as a layer on a support; b) at least one polymeric overlay; and c) a second laser markable layer; wherein the second laser markable layer exhibits a higher laser sensitivity than a non-laser marked area of the first laser markable layer but produces a smaller maximum optical density or a smaller gloss on laser marking. Methods for manufacturing the security document are also disclosed. | 09-25-2014 |
20140232810 | Colour Laser Marking Methods of Security Document Precursors - A method of colour laser marking a security document precursor including at least: a transparent biaxially stretched polyethylene terephthalate foil; at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber a colour forming compound and a polymeric binder; and a laser markable polymeric support or a laser markable layer for generating a black colour; comprising the steps of:
| 08-21-2014 |
20140193638 | PET-C Based Security Laminates and Documents - A security laminate ( | 07-10-2014 |
20140099482 | COLOUR LASER MARKING OF ARTICLES AND SECURITY DOCUMENTS - A method for preparing a colour laser marked article comprising the steps of: a) infrared laser marking a security element including a polymeric support and a colour forming layer comprising a colour forming compound, an infrared dye and a polymeric binder comprising vinyl acetate and at least 85 wt % of vinyl chloride based on the total weight of the binder; and b) exposing the laser marked security element with light having a wavelength higher than 440 nm. The light exposure of step b) hinders the falsification of an issued security document without significant increase of background density. | 04-10-2014 |
20140065387 | DISPERSION COMPRISING METALLIC, METAL OXIDE OR METAL PRECURSOR NANOPARTICLES - 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. | 03-06-2014 |
20130235145 | COLOUR LASER MARKING METHODS OF SECURITY DOCUMENT PRECURSORS - A method of colour laser marking a security document precursor including, in order, at least: a) a polymeric foil; b) at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber, a colour forming compound and a polymeric binder; and c) either a lasermarkable polymeric support or a lasermarkable layer for generating a black colour; comprising the steps of: (1) laser marking a colour different from black in the colourless colour forming layer with an infrared laser used in continuous wave mode; and (2) laser marking a black colour by carbonization in the lasermarkable polymeric support or the lasermarkable layer with the same infrared laser used in a pulsed mode; and wherein at least one of the polymeric foil and the lasermarkable polymeric support is transparent for the infrared light of the infrared laser. | 09-12-2013 |
20130233932 | SECURITY DOCUMENTS AND COLOUR LASER MARKING METHODS FOR SECURING THEM - A security document precursor including, in order, at least: a) a transparent biaxially stretched polyethylene terephthalate foil; b) a colourless colour forming layer containing at least an infrared absorber, a colour forming component and a polymeric binder; and c) a polymeric support; wherein the colourless colour forming layer contains at least one component forming a compound having a melting temperature of less than 20° C. upon laser marking the colourless colour forming layer with an infrared laser. Methods for securing a security document using the security document precursor are also disclosed. | 09-12-2013 |
20130230704 | COLOUR LASER MARKING OF ARTICLES AND SECURITY DOCUMENT PRECURSORS - A method of colour laser marking an article having a polymeric foil with at least one colourless layer containing an infrared absorber, a polymeric binder and a colour forming compound; including the steps of:—laser marking the colourless layer with an infrared laser using a first laser operation mode to generate a blue or cyan colour; and—laser marking the same colourless layer with an infrared laser using a second laser operation mode to generate a black colour, wherein the first laser operation mode applies less energy to the colourless layer than the second laser operation mode. Also disclosed is an article, such as a security document, including a polymeric foil and a colourless layer containing laser marked graphical data having a blue or cyan colour and laser marked information having a black colour | 09-05-2013 |
20130229008 | COLOUR LASER MARKING METHODS OF SECURITY DOCUMENTS - A security document precursor including, in order: a) at least one transparent biaxially stretched polyester foil; b) one colourless colour forming layer containing at least an infrared absorber, a colourless dye-precursor and a polymeric binder; and c) a polymeric support; wherein the polymeric binder is copolymer including at least 90 wt % of a chlorinated ethylene and 1 wt % to 10 wt % of vinyl acetate both based on the total weight of the binder. Methods for making the security document precursor are also disclosed. | 09-05-2013 |
20130210954 | POLYMERISABLE PHOTOINITIATORS FOR LED CURABLE COMPOSITIONS - A polymerisable photoinitiator according to Formula (I): | 08-15-2013 |
20130209783 | IMAGE RECEIVING MATERIAL FOR OFFSET PRINTING - 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. | 08-15-2013 |
20130176370 | LED CURABLE COMPOSITIONS - A radiation curable composition includes a) at least one monomer comprising at least one vinyl ether group and at least one (meth)acrylate group; and b) at least one diffusion hindered photoinitiator selected from the group consisting of a polymeric photoinitiator, a multifunctional photoinitiator and a polymerizable photoinitiator characterized in that the diffusion hindered photoinitiator includes at least one structural moiety according to Formula (I): | 07-11-2013 |
20130050367 | FLEXIBLE, SCRATCH RESISTANT RADIATION CURABLE INKJET INKS - A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds includes at least 45 wt % of a mixture of monomers consisting of: a) 10 to 35 wt % of one or more cyclic monofunctional acrylates wherein the homopolymer thereof has a T | 02-28-2013 |
20130044167 | FLEXIBLE, SCRATCH RESISTANT RADIATION CURABLE INKJET INKS - A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds includes a) no more than 15 wt % of one or more monofunctional acrylates wherein the homopolymer thereof has a T | 02-21-2013 |
20130008965 | PET-C BASED SECURITY LAMINATES AND DOCUMENTS - A method of preparing a security laminate including the steps of: a) providing a polyethylene terephthalate substrate ( | 01-10-2013 |
20120309861 | PHOTOINITIATORS FOR UV-LED CURABLE COMPOSITIONS AND INKS - A specific type of carbazole photoinitiator is capable of providing radiation curable compositions that are curable by UV LEDs and do not exhibit an unstable yellowing behaviour in an image upon storage like ITX. | 12-06-2012 |
20120283349 | UV-LED CURABLE COMPOSITIONS AND INKS - A radiation curable composition for UV LED curing includes at least one co-initiator selected from the group consisting of an aliphatic tertiary amine and a dialkyl aniline derivative; and at least one specific carbazole photoinitiator. The radiation curable composition can be advantageously used to prevent unstable yellowing behaviour in an image upon storage. | 11-08-2012 |
20120279419 | PREPARING AND DISPERSING SURFACE-MODIFIED COLOUR PIGMENTS - A method of preparing a pigment includes, in order, the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with a compound according to Formula (I): | 11-08-2012 |
20120231240 | Laser Markable Security Film - A security film including a support ( | 09-13-2012 |
20120229555 | NON-AQUEOUS PIGMENT DISPERSIONS USING DISPERSION SYNERGISTS - Non-aqueous pigment dispersions exhibit improved dispersion quality and/or stability for a specific selection of naphthol AS pigments and azo pigments by using specific quinacridone dispersion synergists. The non-aqueous pigment dispersions can be advantageously used in inkjet inks inkjet printing methods. | 09-13-2012 |
20120223516 | Security Document with Security Feature on Edge - A security document precursor including one or more lamellae provided with two or more holes near a perimeter edge surface of the precursor, wherein the holes perforate the largest surface of the one or more lamellae, and wherein at least one of the holes is filled with a coloured material which differs in colour from at least one of the one or more lamellae, such that the coloured material is visible from a direction perpendicular on the perimeter edge surface; wherein at least one of the one or more lamellae is transparent or translucent: or wherein at least one of the one or more lamellae is opaque and the opaque part of the at least one of the one or more lamellae between the perimeter edge and the hole filled with a coloured material has been removed. A security document and a method of preparing the security document precursor are also disclosed. | 09-06-2012 |
20120217736 | Laser Markable Security Film - A security film including, in order, a transparent biaxially oriented polyethylene terephthalate support ( | 08-30-2012 |
20120202927 | PREPARING AND DISPERSING SURFACE-MODIFIED COLOUR PIGMENTS - A method of preparing a pigment includes the steps of: a) providing a mixture including:
| 08-09-2012 |
20120200650 | NON-AQUEOUS PIGMENT DISPERSIONS USING DISPERSION SYNERGISTS - Non-aqueous pigment dispersions exhibiting improved dispersion quality and/or stability were prepared for a specific selection of naphthol AS pigments, diketopyrrolo-pyrrole pigments and quinacridone pigments, by using specific yellow monoazo dispersion synergists. The non-aqueous pigment dispersions can be advantageously used in inkjet inks inkjet printing methods. | 08-09-2012 |
20120200634 | NON-AQUEOUS PIGMENT DISPERSIONS USING DISPERSION SYNERGISTS - Non-aqueous pigment dispersions exhibiting improved dispersion quality and/or stability were prepared for a specific selection of quinacridone pigments, diketopyrrolo-pyrrole pigments and azo pigments by using specific naphthol AS dispersion synergists. The non-aqueous pigment dispersions can be advantageously used in inkjet inks inkjet printing methods. | 08-09-2012 |
20120199044 | PREPARING AND DISPERSING SURFACE-MODIFIED COLOUR PIGMENTS - A method of preparing a pigment includes in order the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with 1,4-butane sultone or 1,3-propane sultone in an alkaline medium to form sulfobutyl groups respectively sulfopropyl groups on the pigment surface; and c) adding acid to convert the sulfobutyl groups or sulfopropyl groups to sulfonic acid groups. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed. | 08-09-2012 |
20120194616 | UV CURABLE INKJET COMPOSITIONS FOR HIGH-DENSITY PRINT HEADS - A combination of: a) an inkjet print head having a nozzle density of at least 600 dpi and nozzles with an outer nozzle diameter D smaller than 25 μm; and b) a UV curable inkjet composition containing 0 to 10 wt % of one or more monofunctional monomers and at least A wt % of 2-(2-vinyloxyethoxy)ethyl acrylate, wherein both wt % are based on the total weight of the UV curable inkjet composition; and wherein A is defined by the formula 100 wt %−D×3.0 wt %/μm≦A≦100 wt %−D×1.0 wt %/μm. | 08-02-2012 |
20120147086 | HYPERBRANCHED POLYMERIC DISPERSANTS AND NON-AQUEOUS PIGMENT DISPERSIONS - A polymeric dispersant having a hyperbranched polyurethane architecture obtained by reacting a polyisocyanate core with a mixture of: | 06-14-2012 |
20110266788 | SECURITY LAMINATES WITH INTERLAMINATED TRANSPARENT EMBOSSED POLYMER HOLOGRAM - A method for interlaminating a transparent embossed hologram, the transparent embossed hologram comprising a support having two sides, at least one of the two sides either itself being embossed or having a layer thereon which is embossed and a layer of a HRI-material contiguous with the embossed side or embossed layer, comprising the steps of: a) providing the outermost surface of the layer of inorganic HRI-material with a layer of an adhesive composition containing a solution or dispersion of at least one polymer in an organic solvent medium; b) drying the layer of the adhesive composition on the outermost surface of the HRI-material thereby providing a conditioned outermost surface of the layer of inorganic HRI-material with a transparent continuous adhesive layer; and c) laminating the transparent continuous laminatable layer to a foil, wherein the organic solvent medium is selected from the group consisting of ketones, ethers, heterocyclic ethers, lactams, amides, halo-aliphatic compounds, nitriles and esters; wherein at least one of the support and the foil is transparent; and wherein the HRI material is a material with a refractive index of at least 0.3 higher than that of the embossed material. A laminate and a security document comprising the laminate obtainable by the above-disclosed process are also disclosed. | 11-03-2011 |
20110204616 | SECURITY LAMINATES WITH INTERLAMINATED TRANSPARENT EMBOSSED POLYMER HOLOGRAM - A method for interlaminating a transparent embossed hologram, the transparent embossed hologram comprising a support having two sides, at least one of the two sides either itself being embossed or having a layer thereon which is embossed and a layer of a HRI-material contiguous with the embossed side or embossed layer, comprising the steps of: a) conditioning the outermost surface of the layer of inorganic HRI-material with at least one organic liquid; b) drying the outermost surface of the layer of the inorganic HRI-material thereby providing a conditioned outermost surface of the layer of inorganic HRI-material; c) applying an adhesive layer to the conditioned outermost surface; and d) laminating the outermost surface of inorganic HRI-material to an optionally transparent film, wherein the at least one organic liquid is selected from the group consisting of ketones, ethers, heterocyclic ethers, lactams, amides, halo-aliphatic compounds, nitriles and esters; wherein at least one of the support and the film is transparent; and wherein the HRI-material is a material with a refractive index of at least 0.3 higher than that of the embossed material. A laminate obtainable with the above-mentioned methods and an identity document comprising the laminate are also disclosed. | 08-25-2011 |
20110171377 | PROCESS FOR PRODUCING AN ION-PERMEABLE WEB-REINFORCED SEPARATOR - Process comprising the steps of: (i) providing an elongated porous web, said elongated porous web comprising two outermost surfaces; (ii) transporting said elongated porous web downwards between two impregnating heads comprising two slots each with substantially vertical upper and lower slot faces substantially parallel to said elongated porous web providing simultaneously to both surfaces of said elongated porous web metered substantially identical quantities of a dope, comprising at least one membrane polymer and at least one solvent therefor; (iii) thereby impregnating said elongated porous web completely with said dope and providing substantially equally thick dope layers on each surface of said outermost surfaces of said elongated porous web with a thickness independent of the gap between one of said lower slot faces and the surface of said elongated porous web nearest thereto; (iv) subjecting said dope associated with said elongated porous web immediately after dope-impregnation to symmetric phase inversion with at least one non-solvent thereby forming a membrane; and (v) removing residues of said at least one solvent for said at least one membrane polymer from said membrane thereby producing an ion-permeable web-reinforced separator, wherein said dope is shear-thinning, and the separator obtainable therewith. | 07-14-2011 |
20110156382 | SECURITY DOCUMENT AND METHODS OF PRODUCING IT - A security document having in order a) a first laser markable layer, present as a self-supporting layer or as a layer on a support; b) at least one polymeric overlay; and c) a second laser markable layer; wherein the second laser markable layer exhibits a higher laser sensitivity than a non-laser marked area of the first laser markable layer but produces a smaller maximum optical density or a smaller gloss on laser marking. Methods for manufacturing the security document are also disclosed. | 06-30-2011 |
20110131737 | SECURIZATION WITH DYE DIFFUSION TRANSFER LAMINATES - A security laminate containing a dye diffusion transfer image receptor layer comprising a polymeric mordant for dyes on a support having a laser engraved first dye diffusion transfer image or a laser marked dye diffusion transfer image receptor layer in an area lacking the first dye diffusion transfer image. Methods for manufacturing and securing security document precusors are also disclosed. | 06-09-2011 |
20110111122 | APPARATUS AND PROCESS FOR PRODUCING AN ION-PERMEABLE WEB-REINFORCED SEPARATOR AND SEPARATOR OBTAINABLE THEREWITH - An apparatus for producing an ion-permeable web-reinforced separator comprising a duplex type impregnating apparatus comprising two slots each with substantially vertical upper and lower slot faces for providing premetered substantially identical quantities of a dope simultaneously to either side of an elongated porous web, a transport means providing for substantially vertical downwards transport of said elongated porous web through said duplex impregnating apparatus and subsequent phase inversion, coagulation and washing stations, said phase inversion station providing for phase inversion of said dope and said coagulation station providing for coagulation and washing of solvent from the resulting phase-inverted dope, wherein there is an air gap between said duplex impregnating apparatus and said phase inversion station and wherein the distance between the lower faces of each impregnating apparatus is greater than the distances between the upper faces of each impregnating apparatus; a process comprising the steps of: (i) providing an elongated porous web, said elongated porous web comprising two outermost surfaces; (ii) transporting said elongated porous web downwards between two impregnating heads comprising two slots each with substantially vertical upper and lower slot faces substantially parallel to said elongated porous web providing simultaneously to both surfaces of said elongated porous web metered substantially identical quantities of a dope, comprising at least one membrane polymer and at least one solvent therefor; (iii) thereby impregnating said elongated porous web completely with said dope and providing substantially equally thick dope layers on each surface of said outermost surfaces of said elongated porous web with a thickness independent of the gap between one of said lower slot faces and the surface of said elongated porous web nearest there-to; (iv) subjecting said dope associated with said elongated porous web to symmetric phase inversion with at least one non-solvent thereby forming a membrane, and (v) removing residues of said at least one solvent for said at least one membrane polymer from said membrane thereby producing an ion-permeable web-reinforced separator, wherein said dope is shear-thinning and steps (iv) and (v) are optionally performed simultaneously; and the separator obtainable therewith. | 05-12-2011 |
20110046035 | METHOD FOR TREATING A LITHOGRAPHIC PRINTING PLATE - A method for treating a lithographic printing plate is disclosed comprising the step of applying a liquid to the plate including an aqueous phase; a solvent phase which is present in the liquid in an amount ≦40% wt; and one or more compound (s) having the following formula (I): R | 02-24-2011 |
20100330304 | SECURITY LAMINATES WITH A SECURITY FEATURE DETECTABLE BY TOUCH - A security laminate precursor comprising a plurality of lamellae and layers, wherein at least one of the outermost lamellae is an axially stretched linear polyester film and the security laminate precursor comprises a touch-detectable relief structure on a side of the security laminate precursor having as outermost lamella the axially stretched linear polyester film, the relief structure being associated with a viewable non-surface image which is a pattern made up of micro-perforations. A security laminate and a process for preparing a security laminate are also disclosed. | 12-30-2010 |
20100201115 | SECURITY LAMINATES WITH INTERLAMINATED TRANSPARENT EMBOSSED POLYMER HOLOGRAM - A method for interlaminating an embossed hologram, the embossed hologram comprising an optionally transparent support having two sides, at least one of the two sides either itself being embossed or having a layer thereon which is embossed and a layer of a HRI-material contiguous with the embossed side or embossed layer, comprising the steps of: a) conditioning the outermost surface of the layer of inorganic HRI-material with an alkaline solution or an acidic solution; b) drying the outermost surface of the layer of the inorganic HRI-material thereby providing a conditioned outermost surface of the layer of inorganic HRI-material; c) applying a layer of an adhesive composition to the conditioned outermost surface of the layer of inorganic HRI-material support; and d) laminating the outermost surface of the layer of HRI-material to a polymer film, wherein at least one of the support and the polymer film is transparent; and wherein the HRI material is a material with a refractive index of at least 0.3 higher than that of the embossed material. A laminate obtainable therewith, and a security document comprising the laminate are also disclosed. | 08-12-2010 |
20100119134 | Method of Segmenting Anatomic Entities in Digital Medical Images - For each of a number of landmarks in an image an initial position of the landmark is defined. Next a neighborhood around the initial position, comprising a number of candidate locations of the landmark is sampled and a cost is associated with each of the candidate locations. A cost function expressing a weighted sum of overall gray level cost and overall shape cost for all candidate locations is optimized. A segmented anatomic entity is defined as a path through a selected combination of candidate locations for which combination the cost function is optimized. | 05-13-2010 |
20090169455 | INK-JET RECORDING MATERIAL - An ink-jet recording material having a support and at least one ink-receiving layer, the ink-receiving layer comprising at least one binder and a cationized fumed silica prepared by copolymerizing at least one cationic monomer and at least one non-cationic monomer monomer in the presence of a fumed silica. A cationized fumed silica prepared by polymerizing the monomers in the presence of a fumed silica and a method of preparing an ink-jet recording material are also disclosed. | 07-02-2009 |