Patents Assigned to Datalase Ltd.
  • Patent number: 12285961
    Abstract: The invention is directed towards a composition comprising: a near-infrared radiation absorbing compound; a colour-forming compound; and a heat transfer agent operable to facilitate heat transfer from the near-infrared radiation absorbing compound to the colour-forming compound; wherein the near-infrared radiation absorbing compound is present in an amount of 0.1-3.5 wt % of the total composition, and the heat transfer agent is present in an amount of 1-15 wt % of the total composition, and the heat transfer agent is present in the composition as solid particles. The invention further relates to substrates comprising the composition applied thereto, as well as methods of forming colour or an image on said substrates.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 29, 2025
    Assignee: DataLase Ltd.
    Inventors: Richard Cook, Martin Walker
  • Patent number: 10029502
    Abstract: A method of forming an image on a substrate by applying energy, involves a substrate in or on which there are at least two different colour-change agents, i.e. a first colour-change agent capable of giving rise to at least two different colours; and a second colour-change agent capable of giving rise to at least one different colour than achievable with the first colour change agent. A preferred embodiment of the invention is a multi-layer laminate comprising, in order, a layer comprising the first agent, a barrier layer, and a layer comprising the second agent.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 24, 2018
    Assignee: DataLase Ltd.
    Inventors: Anthony N. Jarvis, Christopher Anthony Wyres, William Green, Martin Robert Walker
  • Patent number: 9663675
    Abstract: In a first aspect, the invention provides an ink formulation comprising: (a) a near infrared absorbing system comprising a compound of the formula M1W1.6O6, wherein M1 is one or more elements selected from the group consisting of H, He, alkali metals such as Li, Na, K, Rb, Cs, alkaline earth metals such as Be, Mg, Ca, Sr, Ba, rare-earth elements, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, AL Ga, in, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Hf, Os, Bi and I, or ammonium; (b) a color change agent; and (c) a binder. The invention also provides alternative ink formulations for laser marking, a method of forming an image using the ink formulations and a substrate coated with the ink formulation of the invention. Ink formulations according to the invention have been found to have good laser imaging efficacy, and an essentially negligible impact on the background color of the coating.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: May 30, 2017
    Assignee: DataLase Ltd.
    Inventor: Anthony Jarvis
  • Publication number: 20160168407
    Abstract: In a first aspect, the invention provides an ink formulation comprising: (a) a near infrared absorbing system comprising a compound of the formula M1W1.6O6, wherein M1 is one or more elements selected from the group consisting of H, He, alkali metals such as Li, Na, K, Rb, Cs, alkaline earth metals such as Be, Mg, Ca, Sr, Ba, rare-earth elements, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, AL Ga, in, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Hf, Os, Bi and I, or ammonium; (b) a colour change agent; and (c) a binder. The invention also provides alternative ink formulations for laser marking, a method of forming an image using the ink formulations and a substrate coated with the ink formulation of the invention. Ink formulations according to the invention have been found to have good laser imaging efficacy, and an essentially negligible impact on the background colour of the coating.
    Type: Application
    Filed: July 30, 2014
    Publication date: June 16, 2016
    Applicant: DataLase Ltd.
    Inventor: Anthony Jarvis
  • Patent number: 9333786
    Abstract: The present invention provides polymeric particles comprising a polymeric matrix comprising one or more water-insoluble polymers and a laser-sensitive system encapsulated in the polymeric matrix. It also provides a process for the preparation of the polymeric particles, a composition comprising the polymeric particles, a process for the preparation of this composition, a process for forming a laser-sensitive coating layer on a substrate using this composition, a coated substrate obtainable by the coating process, a process for preparing a marked substrate and a marked substrate obtainable by the marking process.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: May 10, 2016
    Assignee: Datalase, Ltd.
    Inventor: Jonathan Campbell
  • Patent number: 9017425
    Abstract: A textile comprising a diacetylene compound which is capable of changing color when irradiated with light energy. Methods of imparting color to textiles comprising irradiating the textile with light energy are also provided.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 28, 2015
    Assignee: Datalase Ltd.
    Inventor: Anthony Jarvis
  • Patent number: 8936901
    Abstract: A laser-markable composition comprises a binder and an oxyanion of a multivalent metal.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: January 20, 2015
    Assignee: DataLase Ltd.
    Inventor: Nazir Khan
  • Patent number: 8900414
    Abstract: Fiber products, comprising in their body at least 20% by weight of cellulose fibers, and adequate amounts of an acid and a cationic retention aid for the acid, can be marked by means of a laser beam.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: December 2, 2014
    Assignee: Datalase, Ltd.
    Inventor: Adolf Käser
  • Patent number: 8865620
    Abstract: The present invention provides heat-sensitive coating compositions, which comprise a color developer of formula (1) or mixtures thereof wherein R1 can be hydrogen, C1-20-alkyl, C3-8-cycloalkyl, C2-10-alkenyl, aryl or SO3H, and R2 and R3 can be the same or different and can be hydrogen, halogen, C1-20-alkyl, C3-8-cyclo-alkyl, C2-10-alkenyl, aryl, OR6, NR7R8, SR9, SO3H or COOR10 and R4 and R5 can be the same or different, and can be hydrogen, halogen, C1-20-alkyl, C3-8-cyclo-alkyl, C2-10-alkenyl, aryl, OR6, NR7R8 or SR9, R6, R7, R8, R9 and R10 can be the same or different and can be hydrogen, C1-30-alkyl, C3-8-cycloalkyl, C2-10-alkenyl or aryl, wherein C1-20-alkyl can be unsubstituted or substituted with one or more C3-8-cycloalkyl, C2-10-alkenyl, phenyl, halogen, OR11, NR12R13, SR14, SO3H or COOR15, and aryl can be unsubstituted or substituted with one or more halogen, C1-10-alkyl, halogenated C1-10-alkyl, C3-8-cycloalkyl C2-10-alkenyl, phenyl, OR11, NR12R13, SR14, SO3H or COOR15, wherein R11, R12, R13, R14 an
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: October 21, 2014
    Assignee: Datalase, Ltd.
    Inventors: Allan Francis Cunningham, Thomas Ehlis, Jean-Luc Birbaum, Pascal Hayoz, Kamalesh Pai Fondekar
  • Patent number: 8853314
    Abstract: The invention relates to a powder composition comprising particles of a) an alkali metal tungsten bronze, b) tungsten oxide, and c) tungsten metal, a method for the preparation of said powder composition, and to the use of said powder composition in form of a dispersion in a polymer material or article for heat shielding, or to increase the heat-input amount of near infrared radiation in processes selected from laser welding of plastics, NIR curing of coatings, drying of printing inks, fixing of ink toners to a substrate, heating of plastic performs, laser marking of plastics or paper.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 7, 2014
    Assignee: Datalase Ltd.
    Inventors: Marc Mamak, Urs Lehmann, Ralf Knischka, Francesca Peri, Adolf Käser
  • Publication number: 20140242290
    Abstract: A laser-markable composition comprises a binder and an oxyanion of a multivalent metal.
    Type: Application
    Filed: May 6, 2014
    Publication date: August 28, 2014
    Applicant: DataLase Ltd.
    Inventor: Nazir KHAN
  • Patent number: 8753791
    Abstract: A laser-markable composition comprises a binder and an oxyanion of a multivalent metal.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: June 17, 2014
    Assignee: Datalase Ltd.
    Inventor: Nazir Khan
  • Patent number: 8698863
    Abstract: Laser-markable compositions and methods for providing an image on a substrate are provided. A laser-markable composition can include a pigment, a solvent, and a conductive polymer that absorbs IR radiation. This can be used to mark a substrate, using a low-energy laser. Irradiation can be by means of a near-IR laser source, and the conductive polymer can absorb radiation and transfer heat to the pigment.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: April 15, 2014
    Assignee: Datalase Ltd.
    Inventors: Nazir Khan, Martin Robert Walker
  • Patent number: 8663902
    Abstract: A method of forming an image on a substrate, which comprises applying to the substrate an activatable color forming compound wherein said activatable color forming compound is initially unreactive but becomes reactive upon activation; activating said color forming compound in the areas of the substrate where the image is to be formed, and, reacting the activated color forming compound into its colored form to produce an image. A substrate imaged using this method is also provided.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: March 4, 2014
    Assignee: Datalase Ltd
    Inventors: Anthony Jarvis, Martin Walker, Christopher Wyres, Tristan Phillips
  • Patent number: 8637114
    Abstract: A method of manufacturing a paper substrate comprising a color former which is capable undergoing a light activated color change reaction, wherein the color former is applied to the paper substrate during the manufacture of said paper substrate, and the color former is a metal oxyanion or a molecular organic. A paper substrate obtainable by this method is also provided.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: January 28, 2014
    Assignee: Datalase Ltd
    Inventors: Christopher Wyres, Anthony Jarvis, Martin Walker, William Green
  • Patent number: 8637429
    Abstract: The invention relates to a method of marking a substrate comprising treating the substrate with a boron compound and a charrable agent, and, irradiating the areas of the substrate to be marked such that those areas change colour. Marked substrates obtainable by this method are also provided.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: January 28, 2014
    Assignee: Datalase Ltd
    Inventors: Martin Walker, Anthony Jarvis, Christopher Wyres, William Green
  • Patent number: 8557510
    Abstract: A composition comprising i) a color forming component which is susceptible to changing color when irradiated; ii) an amine neutralised alkylaromatic sulphonic acid; and iii) a binder. Methods of marking a substrate comprising incorporating within or applying to a substrate the composition of this invention, and substrates coated with the composition, are also provided.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 15, 2013
    Assignee: Datalase Ltd.
    Inventors: Martin Walker, Anthony Jarvis
  • Patent number: 8507178
    Abstract: The invention relates to use of a diacetylene compound as a color former wherein the diacetylene compound has one of general formulae (I) to (V). The invention also includes methods of imparting color to a material including a compound as defined above, which comprises subjecting the material to irradiation.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 13, 2013
    Assignee: Datalase, Ltd
    Inventors: Anthony N Jarvis, Christopher Anthony Wyres
  • Patent number: 8420282
    Abstract: A method for producing a color filter, comprising: applying to a substrate at least one diacetylene capable of undergoing a light-activated color change reaction, and exposing the substrate to light thereby causing the exposed regions of the substrate to change color. The invention also provides devices comprising colored filters such as liquid crystal displays.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: April 16, 2013
    Assignee: Datalase Ltd
    Inventors: Anthony N Jarvis, Martin Walker
  • Patent number: 8398760
    Abstract: A composition susceptible to changing color upon the application of energy, wherein the composition comprises a color former and a tinting colorant, wherein the tinting colorant has a complementary color to that of the composition comprising the color former without tinting colorant. Preferably, the composition 5 also comprises an energy absorbing additive. The invention also provides a method of improving contrast when a composition susceptible to changing color is imaged.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: March 19, 2013
    Assignee: Datalase Ltd.
    Inventor: Anthony Jarvis