Abstract:
Disclosed herein are novel amidic nitrone and a method of manufacturing a data storage media comprising mixing the amidic nitrone, as a photochromic dye, with an organic material or an inorganic material to form a holographic composition and molding the holographic composition into holographic data storage media. Disclosed herein too is an article comprising a photochromic dye and an organic material, wherein the article is used as a data storage media. Disclosed herein too is a method for recording information comprising irradiating an article that comprises a photochromic dye, wherein the irradiation is conducted with electromagnetic energy having a wavelength of about 350 to about 1,100 nanometers; and reacting the photochromic dye.
Abstract:
Disclosed herein are novel nitrone compounds, holographic recording media that include the nitrone compound(s) and a polymer binder, a method of manufacturing a holographic recording medium where the nitrone compound, as a photochromic dye, is mixed with a polymer binder to form a holographic composition and molding the holographic composition into holographic data recording medium. Disclosed herein too is a method for recording a hologram by exposing the holographic recording medium to mutually coherent signal and reference light sources at a wavelength that causes a change in the chemical structure of the nitrone compound.
Abstract:
A compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R 1 independently at each occurrence is a C 1 -C 20 aliphatic radical, a C 3 -C 10 cycloaliphatic radical, or a C 3 -C 10 aromatic radical; R 2 , R 3 , R 4 and R 5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycloaliphatic radical, or a C 6 -C 20 aromatic radical; and "n", "q", and "p" are each independently integers having a value of O to 3, and "m" is an integer having a value of O to 4.
Abstract:
A compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R 1 independently at each occurrence is a C 1 -C 20 aliphatic radical, a C 3 -C 10 cycloaliphatic radical, or a C 3 -C 10 aromatic radical; R 2 , R 3 , R 4 and R 5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycloaliphatic radical, or a C 6 -C 20 aromatic radical; and "n", "q", and "p" are each independently integers having a value of O to 3, and "m" is an integer having a value of O to 4 (II).
Abstract:
A composition comprising compound of formula: (I), a process for preparing the composition comprising compound of formula: (I), methods of authentication for an article comprising compound of formula: (I) or compound of formula: (II), authentication technology for polymer based articles comprising compound of formula: (I) or formula: (II), methods of facilitating such authentication and method of making articles capable of authentication.
Abstract:
Disclosed herein are novel nitrone compounds, holographic recording media that include the nitrone compound(s) and a polymer binder, a method of manufacturing a holographic recording medium where the nitrone compound, as a photochromic dye, is mixed with a polymer binder to form a holographic composition and molding the holographic composition into holographic data recording medium. Disclosed herein too is a method for recording a hologram by exposing the holographic recording medium to mutually coherent signal and reference light sources at a wavelength that causes a change in the chemical structure of the nitrone compound.
Abstract:
A composition comprising compound of formula: (I), a process for preparing the composition comprising compound of formula: (I), methods of authentication for an article comprising compound of formula: (I) or compound of formula: (II), authentication technology for polymer based articles comprising compound of formula: (I) or formula: (II), methods of facilitating such authentication and method of making articles capable of authentication.
Abstract:
Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II,wherein R I and R 2 are independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2cycloalkylidene group, or combinations thereof, "q" is independently an integer from 1 - 4, L is a linking group, and "r" is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.
Abstract:
Articles (11) for recording a holographic image are described. The articles include a holographic recording medium (16) having surfaces, having a photoreactive dye dispersed in a transparent polymeric binder, the holographic recorded medium having a holographic image recorded therein from an interference pattern formed by exposed areas of the photoreactive dye and unexposed areas of the photoreactive dye; and a first light-blocking layer (14) or material over a first surface of the holographic recorded medium from which surface the holographic image is viewed, the light blocking layer or material absorbing light in the wavelength range to which the photoreactive dye is sensitive and allowing transmission of light in a different wavelength range for viewing the holographic image.
Abstract:
A compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R 1 independently at each occurrence is a C 1 -C 20 aliphatic radical, a C 3 -C 10 cycloaliphatic radical, or a C 3 -C 10 aromatic radical; R 2 , R 3 , R 4 and R 5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycloaliphatic radical, or a C 6 -C 20 aromatic radical; and "n", "q", and "p" are each independently integers having a value of O to 3, and "m" is an integer having a value of O to 4 (II).