Patent application number | Description | Published |
20100086861 | SPECIAL POLYETHER-BASED POLYURETHANE FORMULATIONS FOR THE PRODUCTION OF HOLOGRAPHIC MEDIA - The present invention relates to novel polyurethane compositions which are advantageous for the production of holographic media, inter alia for data storage, but also for optical applications of different types. | 04-08-2010 |
20100087564 | PHOTOPOLYMER FORMULATIONS HAVING A LOW CROSSLINKING DENSITY - The invention relates to photopolymer formulations based on a polymeric network as a matrix and at least one photopolymerizable monomer dissolved therein and to a method for the production of holographic media from such photopolymers and to the use thereof. | 04-08-2010 |
20100112459 | POLYETHER-BASED POLYURETHANE FORMULATIONS FOR THE PRODUCTION OF HOLOGRAPHIC MEDIA - The present invention relates to novel polyurethane compositions which are advantageous for the production of holographic media, inter alia for data storage, but also for optical applications of different types. | 05-06-2010 |
20110311905 | METHOD FOR PRODUCING HOLOGRAPHIC PHOTOPOLYMERS ON POLYMER FILMS - The invention relates to a method for producing novel photopolymers on the basis of prepolymer-based polyurethane compositions that are suitable for producing holographic media, in particular for the visual display of images. | 12-22-2011 |
20120214090 | METHOD FOR PRODUCING HOLOGRAPHIC MEDIA - The invention relates to a method for producing holographic media, wherein a photopolymer formulation comprising matrix polymers, writing monomers, a photoinitiator system, and optionally auxiliary materials and additives as components is provided, the photopolymer formulation is applied as a coating on the surface of a carrier film and the photopolymer formulation is dried on the carrier film at a temperature XXYY DEG C., wherein only those compounds having TGA 95 values >100 DEG C. and at least 30 DEG C. above the temperature T are selected as components for the photopolymer formulation. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention. | 08-23-2012 |
20120214895 | URETHANE ACRYLATE HAVING A HIGH REFRACTIVE INDEX AND REDUCED DOUBLE BOND DENSITY - The invention relates to novel specially substituted urethane acrylates based on tris(p-isocyanatophenyl)thiophosphate having a high refractive index and reduced double bond density, and to a method for the production and use thereof. | 08-23-2012 |
20120219884 | PHOTOPOLYMER FORMULATIONS HAVING THE ADJUSTABLE MECHANICAL MODULUS GUV - The subject matter of the invention is a method for producing illuminated, holographic media comprising a photopolymer formulation having the adjustable mechanical modulus GUV. A further subject matter of the invention is an illuminated, holographic medium that can be obtained by means of the method according to the invention. | 08-30-2012 |
20120219885 | NOVEL NON-CRYSTALLIZING METHACRYLATES, PRODUCTION AND USE THEREOF - The invention relates to a novel non-crystallizing methacrylate and a method for the production thereof. The invention further relates to a photopolymer formulation comprising the methacrylate of the invention as well as to use of said photopolymer formulation for producing holographic media. | 08-30-2012 |
20120231376 | FLUOROURETHANE AS AN ADDITIVE IN A PHOTOPOLYMER FORMULATION - The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for illuminating holographic media made of the photopolymer formulation, and to special fluorourethanes. | 09-13-2012 |
20120302659 | PHOTOPOLYMER FORMULATION HAVING ESTER-BASED WRITING MONOMERS - The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, wherein the writing monomers comprise compounds of formula (I), where at least one of the radicals R1, R2, R3, R4, R5, R6 is a radical bonded to the aromatic ring via X of formula (II), where, in formula (II), A is a linear or branched hydrocarbon, optionally comprising oxygen or nitrogen, the remaining radicals R1, R2, R3, R4, R5, R6 are, independent of each other, hydrogen or an organic radical, and R7 is hydrogen or methyl. The invention further relates to the use of the photopolymer formulation for producing holographic media. | 11-29-2012 |
20120321997 | URETHANES USED AS ADDITIVES IN A PHOTOPOLYMER FORMULATION - The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers and photo initiators, to a method for producing said photopolymer formulation, a photopolymer formulation obtained according to said method, a sheeting, a film, a layer, a layer structure or a moulded body made from said photopolymer formulation and to the use of said photopolymer formulation for producing optical elements, in particular for producing holographic elements and images. | 12-20-2012 |
20120321998 | PHOTOPOLYMER FORMULATION HAVING TRIAZINE-BASED WRITING MONOMERS - The invention relates to a photopolymer formulation comprising polyurethane matrix polymers, writing monomers, and photoinitiators, wherein the writing monomers comprise compounds of formula (I), where R1, R2, R3 independent of each other are each a halogen atom or an organic radical, wherein at least one of the radicals is an organic radical comprising a radiation hardening group. The invention further relates to the use of the photopolymer formulation for producing holographic media. | 12-20-2012 |
20130224634 | PHOTOPOLYMER FORMULATION FOR PRODUCING HOLOGRAPHIC MEDIA HAVING HIGHLY CROSSLINKED MATRIX POLYMERS - The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula F An, where F stands for a cationic dye and An″ stands for an anion, wherein the dye having the formula F An comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention. | 08-29-2013 |