Patents
Patents for C09K 9 - Tenebrescent materials, i.e. materials for which the range of wavelengths for energy adsorption is changed as a result of excitation by some form of energy (4,715)
01/1998
01/07/1998EP0816912A1 Process for the production of a photochromic layer
01/07/1998EP0816116A1 Thermal transfer formulations
01/07/1998EP0815492A1 Non-linear optical polycarbonates
01/07/1998EP0613475B1 Photochromic naphthopyran compounds
12/1997
12/31/1997CN1169187A Temp. stable and sunlight protected photochromic articles
12/29/1997EP0574470B1 Electrocatalytic material
12/24/1997WO1997048993A1 Novel photochromic heterocyclic fused indenonaphthopyrans
12/24/1997CN1168725A Novel photochromic indeno fused naphthopyrans
12/16/1997US5699182 Naphthopyran photochrome and hindered aminoether light stabilizer
12/16/1997US5698141 Reverse charge in color when exposured to electromagnetic radiation
12/16/1997US5698020 Contains photochromic dye; can be visually distinguished from natural tooth after irradiating with light
12/02/1997US5693808 Process for the preparation of peryleneimides, novel di-, tri- and tetrachromophoric perylene dyes and their use
12/02/1997US5693744 Based on a diamine and an 4-(n,n-bis(omega-carboxylalkyl)amino-4'-substituted stilbene; high glass transition temperature; amorphous; stability; solvent resistance; strength; films
11/1997
11/27/1997DE19719224A1 Layered structures e.g. windows containing protected thermotropic polymer system
11/25/1997US5691111 Sulfonium salt, acrylate ester polymer
11/18/1997US5688846 Light sensitive polymer with spiropyran derivatives for orange, yellow colors in displays
11/12/1997EP0805993A1 Photochromic substituted naphthopyran compounds
11/04/1997US5683628 Photochromic composition and photochromic resin obtainable by using the same
10/1997
10/30/1997WO1997040409A1 Photochromic naphthopyran compositions of improved fatigue resistance
10/23/1997WO1997035227A3 Electrochromic or photoelectrochromic device
10/22/1997EP0662978B1 Process for producing a photosensitive object
10/21/1997US5679808 Tertiary non-linear optical material
10/21/1997US5679283 Electrochromic layer and devices comprising same
10/15/1997EP0800522A2 Photochromic diaryl-3h-naphthopyranes
10/15/1997CN1036157C Device for monitoring ionizing radiation
10/14/1997US5676884 Nonlinear optical materials containing polar disulfone-functionalized molecules
10/09/1997WO1997037254A1 Photochromic naphthopyran compositions of neutral color
10/08/1997EP0799431A1 Organic photochromic materials with high refractive index, their preparation and articles formed from these materials
10/07/1997US5674559 Process for the preparation of a polymer matrix which becomes cloudy as a function of temperature
10/07/1997US5674432 Photochromic naphthopyran compounds
10/01/1997EP0797785A1 Temperature stable and sunlight protected photochromic articles
09/1997
09/25/1997WO1997035227A2 Electrochromic or photoelectrochromic device
09/18/1997WO1997034186A1 Improved electrochromic layer and devices comprising same
09/16/1997CA2097606C Photochromic naphthopyrans
09/10/1997CN1158882A Photochromic material sensitive to visible and infrared light and its preparation and application
09/03/1997EP0792468A1 Novel photochromic indeno-fused naphthopyrans
08/1997
08/21/1997WO1997030135A1 Electrochromic system
08/21/1997WO1997030134A1 Electrochromic system
08/21/1997DE19605451A1 Elektrochromes System Electrochromic system
08/21/1997DE19605448A1 Elektrochromes System Electrochromic system
08/21/1997CA2246478A1 Electrochromic system
08/21/1997CA2246450A1 Electrochromic system
08/20/1997CN1157311A Diffusing, doping and synthetizing phosphor powder by microwave heating method
08/19/1997US5659010 Polyimide or ring-opening polymerized benzocyclobutene; heat resistance
08/19/1997US5658501 Substituted naphthopyrans
08/13/1997EP0789066A2 Method for improving light-fastness of reversible themochromic compositions at the time of color extinguishment
07/1997
07/30/1997EP0785936A1 Photochromic naphthoxazine compounds
07/29/1997US5651923 Substituted naphthopyrans
07/24/1997WO1997026661A1 Iridium oxide film for electrochromic device
07/22/1997US5650098 Photochromic lenses
07/17/1997WO1997025358A1 Gels with thermotropic properties
07/17/1997WO1997025357A1 Gels with thermotropic properties
07/17/1997DE19601085A1 Gele mit thermotropen Eigenschaften Gels with thermotropic properties
07/17/1997DE19601084A1 Gele mit thermotropen Eigenschaften Gels with thermotropic properties
07/16/1997EP0783535A1 PROCESS FOR PREPARING AQUEOUS SOLUTIONS OF POLY(N-VINYL-$g(e)-CAPROLACTAM) AND THEIR USE
07/16/1997EP0783483A1 Method for preparing photochromic compounds of the spiro indolin- 2,3']-benzoxazine] ringed type
07/03/1997WO1997023578A1 Electrochromic tin oxide
07/03/1997CA2241286A1 Electrochromic tin oxide
07/02/1997EP0781667A2 Reversible thermochromic composition
06/1997
06/26/1997WO1997022895A1 Photochromic substituted naphthopyran compounds
06/25/1997EP0780708A2 Layer comprising photochromic material, manufacturing method and use of said layer
06/24/1997US5641884 Color materials changing color by irradiation
06/19/1997WO1997021698A1 Novel substituted naphthopyrans
06/18/1997EP0779353A2 Novel thermochromic compound and uses thereof
06/18/1997EP0755527A4 Photochromic naphthopyran compounds
06/12/1997WO1997015565A3 Photochromic diaryl-3h-naphthopyranes
06/10/1997US5637709 Photochromatic substances
06/10/1997US5637262 Reversible photochromic dyes for ophthalmic lenses
06/05/1997WO1997020239A1 Photochromic substituted naphthopyran compounds
05/1997
05/28/1997EP0700420A4 Thermostable and lightfast dichroic light polarizers
05/20/1997US5631765 Comprising charge storage layer for donating, accepting electrons
05/20/1997US5631720 Ophthalmic lenses with heterocyclic chromene compounds
05/20/1997US5630869 Reversibly photochromic printing inks
05/14/1997EP0773273A1 Process for the production of photochromic product of curing
05/14/1997EP0773272A1 Photochromic curable composition
05/14/1997EP0773271A1 Process for the production of photochromic product of curing
05/14/1997EP0772798A1 Spiro indoline- 2,3']-benzoxazine]-type photochromic compounds containing a 6'-cyano or phenylsulphonyl group and with a 7', 8'-condensed benzene ring in the benzoxazine ring and use of same in ophthalmic optics
05/14/1997EP0772661A1 Electrochromic layer and devices comprising same
05/06/1997US5627287 Phthalide compound and a near infrared absorber and a recording material each comprising the same compound
05/02/1997EP0770116A1 Diaryl-2h-naphthopyranes
05/01/1997WO1997015607A1 Novel polymers and production and use thereof
05/01/1997WO1997015565A2 Photochromic diaryl-3h-naphthopyranes
04/1997
04/30/1997DE19540185A1 Photochrome Diaryl-3H-naphthopyrane Photochromic diaryl-3H-naphthopyrans
04/30/1997CN1148585A Soluble chromophore containing solubilizing group easy to be removed
04/23/1997EP0769532A1 Naphtholactamimide fluorescent dyes
04/22/1997US5623040 Polymerisable photochromic naphthacenediones, polymers of these monomers, process for their preparation and the use thereof
04/22/1997US5622812 Photochromic (5-phenyl)thienyl aryl maleic anhydride or imide derivatives; oxidation resistance, durability; optical recording media, optical masks
04/15/1997US5621017 Photochromic composition and method producing photochromic cured product
04/13/1997CA2187593A1 Naphthalenelactamimide fluorescence dyes
04/02/1997EP0592563B1 Electrically conductive polymer composition, method of making same and device incorporating same
03/1997
03/27/1997DE19630813A1 Production of precisely dimensioned, controllable optical density sunroof from transparent glass and plastic
03/26/1997EP0764628A1 Diesters of pyrocarbonic acid, their preparation and their use
03/26/1997EP0560898B1 Photochromic naphthopyrans
03/20/1997WO1997010241A1 Photochromic spiroxazines with asymmetric monocyclic substituent, compositions and articles containing them
03/20/1997CA2221719A1 Photochromic spiroxazines with asymmetric monocyclic substituent, compositions and articles containing them
03/19/1997CN1145630A Cross-linked polymer systems
03/18/1997US5612449 Formed by ring-opening polymerization of monomer having a benzocyclobutene structure
03/18/1997US5611966 Electrochemichromic solutions, processes for preparing and using the same, and devices manufacturing with the same
03/17/1997EP0725304A4 Electrochromic compound
03/12/1997EP0761772A1 Soluble chromophors containing solubility-enhancing groups which separate easily therefrom
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