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Sony Corporation

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Covestro Intellectual Property Gmbh & Co. Kg

Serguei Kostromine

Horst Berneth

Rainer Hagen

Thomas Bieringer

Friedrich-Karl Bruder

Rafael Oser

Ralf Neigl

Uwe Claussen

Josef-Walter Stawitz

Wilfried Haese

Joachim Petzoldt

Thomas Fäcke

Thomas Rölle

Dennis Hönel

Ralf Ruhmann

Wolfgang Jacobsen

Wolfgang Fischer

Masanobu Yamamoto

Hans-Werner Schmidt

Klaus Meyer

Hidetoshi Watanabe

Wieland Hovestadt

Helmut Werner Heuer

Yuichi Sabi

Sakuya Tamada

Takashi Iwamura

Timo Kuhlmann

Thomas Roelle

Chung Leung Wong

Carsten Benecke

Mitsuaki Oyamada

Sven Hobeika

Thomas Sommermann

Peter Landenberger

Karin Hassenr&uuml;ck

Hans-Joachim Vedder

Roland Künzel

Mehmet-Cengiz Yesildag

Karin Hassenrück

Konstantin Leonhardt

Karl Vetterle

Ingmar Dorn

Birgit Meyer Zu Berstenhorst

Ute Flemm

Enrico Orselli

Joachim Rubner

Frauke Kühn

Heinz-Guenter Auweiler

Therese Klobutowski

Eberhard Koch

Benjamin Herzberg

Rino E Kunz

Axel Müller

Stephan Zilker

Carsten Frenz

Kay Lautwein

Thomas Breiner

Joachim R&uuml;bner

Bernd Post

Theivanayagam Chairman Deivaraj

Nutkiye Bayram

Meng Feng

Daniel Scheibner

Konstantin Leonhart

The invention relates to a scaled holographic medium comprising a layer construction B'-C1&#x2032;-C2&#x2032;, to a process for producing the sealed holographic medium, to a kit of parts, to a layer construction comprising a protective layer and a substrate layer and to the use thereof.

System consisting of two UV-curing dry-transfer coating layers for the protection of a hologram in a photopolymer film composite

The invention relates to a layer construction comprising a curable protective layer C and a photopolymer layer B, to a method for producing such a layer construction, to a method for producing a hologram using such a layer construction, to a sealed holographic medium and to the use of such a layer construction for producing a hologram.

Film structure containing a photopolymer layer for holographic exposure and a coating layer of high resistance

The invention relates to a protective layer comprising a photopolymer layer B and an at least partly cured protective layer C, to a process for producing the layer construction according to the invention, to a kit of parts, to the use of an at least partly cured protective layer C for protection of a photopolymer layer B and to optical displays and security documents comprising the layer construction according to the invention.

Protective layer for photopolymer

The present invention relates to a coating composition comprising at least one thermoplastic acrylonitrile-butadiene-styrene copolymer in a content of at least 30% by weight of the solids content of the coating composition, at least one UV-curable reactive diluent in a content of at least 30% by weight of the solids content of the coating composition, at least one photoinitiator in a content of &#x2265;0.1 to &#x2264;10 parts by weight of the solids content of the coating composition and at least one organic solvent, where the proportion of ethylenically unsaturated groups is at least 3 mol per kg of the solids content of the coating composition. This is used to provide films and mouldings coated therewith, having a metallizable, scratch-resistant and solvent-resistant surface.

Metallizable, scratch-resistant and solvent-resistant film

A coating agent and films coated with it are provided, of which the coating comprises an enhanced mechanical and chemical resistance and a formability adequate for 2-D-film-insert molding processes. The coating agent, comprising

Coating agent and films having increased mechanical and chemical resistance and sufficient deformability in 2-D film insert molding methods

The invention relates to naphthyl urethane acrylates particularly useful as writing monomers in photopolymer formulations for holographic media. The invention further relates to a photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, to a holographic medium comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, and also to a display comprising a holographic medium according to the invention.

Naphthyl acrylates as writing monomers for photopolymers

The present invention relates to a coating composition comprising at least one thermoplastic acrylonitrile-butadiene-styrene copolymer in a content of at least 30% by weight of the solids content of the coating composition, at least one UV-curable reactive diluent in a content of at least 30% by weight of the solids content of the coating composition, at least one photoinitiator in a content of &#x2265;0.1 to &#x2264;10 parts by weight of the solids content of the coating composition and at least one organic solvent, where the proportion of ethylenically unsaturated groups is at least 3 mol per kg of the solids content of the coating composition. This is used to provide films and moldings coated therewith, having a metallizable, scratch-resistant and solvent-resistant surface.

The present invention relates to a UV absorber-comprising urethane acrylate, to a process for its preparation, and to the use thereof. The UV absorber is chemically bonded into the system. The UV absorber-comprising urethane acrylate has the formula (I): 

UV absorber-containing urethane acrylate

The present invention relates to a two-stage preparation process for an organic UV absorber that has a (meth)acrylate group in the molecule and which as a result is particularly suitable for curable UV protective coatings. One example of the preparation process is: 

Method for producing a polymerizable UV absorber

The present invention relates to organic UV absorbers which have two or more polymerizable acrylate or methacrylate groups in the molecule, to coating compositions comprising such UV absorbers, and also to coatings produced therefrom and to substrates coated therewith.

Special UV absorbers for curable UV-protective coatings

The invention relates to triazine-based special organic UV absorbers modified in such a way as to be soluble in polar coating compositions. The invention further relates to coatings, e.g. sol-gel based ones, containing said novel UV absorbers as well as to the use of said coatings for permanently protecting materials, especially plastics, from photochemical degradation.

UV absorbers soluble in polar media

Homopolymers suitable for storage of information provided optically are disclosed. The are formed from monomers which 

Homopolymers which exhibit a high level of photo-inducable birefringence

Polymeric material suitable for the preparation of optical recording media for volume data storage is disclosed. The molecular structure of the material contains a main chain derived from any of poly(meth)acrylate, poly(meth)acrylamide, polysiloxane, polyurea, polyurethane, polyester, polystyrene and cellulose, and the side chains contain a) azobenzene dye, b) form anisotropic grouping, and c) at least one monomer selected from the group consisting of  where R=H or methyl,R' and R&#x2033; independently denote CnH2n+1 or CnH2n-OH and R&#x2032;&#x2033; denotes &#x2014;CnH2N&#x2014;OH.

Rewriteable optical recording material having good solubility

An optical layer structure having at least two layers and also a sensor based on this layer structure are described. The layer structure comprises at least a substrate layer and at least one (light) waveguide layer and a coupling element for the coupling of the optical beam, the layer adjacent to the waveguide layer having a smaller refractive index than the waveguide layer, and at least one layer consisting of a photoaddressable polymer.

Layer structure and optical waveguide sensor based on photoaddressable polymers

Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with one or more reflection layers and to whose surface a light-writeable information layer, if desired one or more reflection layers and if desired a protective layer or a further substrate or a covering layer have been applied, which can be written on or read by means of blue, red or infrared light, preferably laser light, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that at least one cyanine dye is used as light-absorbent compound.

Optical data carrier comprising a cyanine dye as light-absorbent compound in the information layer

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Swisttal, Germany

Serguei Kostromine