388results about "Styryl dyes" patented technology

An electroluminescent device containing an anode, an organic electroluminescent element, and a cathode wherein the electroluminescent element contains, for example, a fluorescent hydrocarbon component of Formula (I) wherein R1 and R2 are substituents, which are selected from the group consisting of hydrogen, an alkyl, an alicyclic alkyl, an alkoxy, a halogen, and a cyano; Ar1 and Ar2 are each independently an aromatic component or an aryl group comprised of a from about 4 to about 15 conjugate-bonded or fused benzene rings.

A recording material for a medium used for the recording film of a write-once type information recording disk equipped with a transparent resin substrate on which concentric or spiral grooves were formed and a recording film which was formed on the grooves, characterized in that it is formed by one organic coloring matter having an anion portion and a coloring matter portion in which the maximum absorption wavelength zone exists at a longer wavelength side than the wavelength of short wavelength laser beam irradiated on the recording film and forms a record mark on the recording film by irradiation of the short wavelength laser beam, and the record mark has a higher optical reflection coefficient than the optical reflection coefficient of the recording film before irradiation of the short wavelength laser beam. This material realizes so-called Low to High property.

The present invention provides styryl dyes which have absorption maxima at a wavelength of 400 nm or less and are sensitive to a laser beam with a wavelength of 450 nm or less, light absorbents and optical recording media which comprise the styryl dyes, and a process for producing the styryl dyes which comprises reacting with an aldehyde compound a quaternary ammonium salt of nitrogen atom containing heterocyclic compound having an active methyl or active methylene group.

The invention belongs to the technical field of organic luminescence materials. The gathering luminescence material of the invention contains a triphenyl thylene structure, ketone carbonyl is converted into double bonds by substituent phenyl ketone through a Wittig reaction or a Wittig-Horner reaction during synthesis, and the triphenyl thylene structure is formed and then is connected with otheraromatic base groups. The synthesis method has simple technique and easy purification, and the synthesized organic luminescence material containing the triphenyl thylene structure not only has obvious gathering induced luminescence performance, high thermal stability, high vitrifaction transformation temperature and high luminescence intensity, but also is suitable for preparing a luminescence layer material in an organic electroluminescence material component; by introducing proper base groups, and the organic luminescence material also can be used as a fluorescent probe and organic solar battery sensitizing dyestuff.

A write-once information recording medium comprises a transparent resin substrate having a concentrically or spirally shaped groove and a land formed thereon, and a recording firm formed on the groove and the land of the transparent resin substrate, a recording mark being formed on the medium by emission of a short wavelength laser light, the recording medium having an L to H feature in which a light reflectivity of the recording mark portion formed by the emission of the short wavelength laser light is higher than a light reflectivity obtained before the emission of the short wavelength laser light.

The present invention relates to fluorene compounds and polymers thereof, having various structures and functional groups, and capable of being used as a luminescent material for organic and polymer-based electro-luminescence (EL) element and other optical element, and to an EL element using the same as a luminescent material.

To provide a two-photon absorption dye-containing material having a great off-resonant two-photon absorption cross section and comprising a two-photon absorption dye capable of decoloring itself through off-resonant two-photon absorption, useful for a three-dimensional refractive index or absorption index modulation material, a three-dimensional optical recording medium, three-dimensional refractive index modulation method and recording and reproducing method for a three-dimensional optical recording medium a two-photon absorption dye-containing material comprising at least a two-photon absorption dye capable of decoloring itself through two-photon absorption.

According to the present invention there is provided a liquid composition, preferably aqueous composition, comprising a deposition aid and a hueing dye and preferably a fabric care benefit agent.

The present invention relates to photoelectric conversion devices, characterized by using oxide semiconductor particles sensitized with a methine dye represented by the Formula (1):

(in the Formula (1), m represents 1 to 4; n1 represents 1 to 7; p1 represents 1 to 4; X1 represents an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue, a cyano group, a phosphoric acid group, a sulfonic acid group, or a carboxyl group, a carbonamide group, and the like; L1 represents an optionally substituted aromatic residue and the like; A1 and A2 each independently represent an optionally substituted aromatic residue, a hydroxyl group, a phosphoric acid group, a cyano group, a hydrogen atom, a halogen atom and the like; the ring a1 has 1 or a plurality of halogen atoms, amide groups, hydroxyl groups, cyano groups, nitro groups, alkoxy groups, acyl groups and the like.), and solar cells made by using the same. The devices and the cells are characterized by relatively low cost, high stability, and high photoelectric conversion efficiency.

The invention relates to a method for fluorescent staining of orlon, which belongs to the field of dye synthesis and textile dyeing. Stilbazole salt is taken as a cation fluorescent dye, 0.2 and 2.5 percent owf fluorescent dye, 0.5g/L Peregal 0, a 1.0 percent owf leveling agent and 4g/L glauber salt are mixed to prepare a dye solution, acetic acid and a sodium acetate buffer solution are used to adjust the pH value of the dye solution to 5, and the dyeing processing with the dyeing bath ratio of 100 to 1 is performed to obtain a fluorescent orlon fabric. The stilbazole salt provided by the method has simple synthesis reaction, has relative flexibility in molecular design and assembly, and also has good linear optical performance and non-linear optical performance; and under specific dye bath concentration, the dyed orlon fabric satisfies the coordinate range of orange color stipulated in European EN471 standard High-visibility Warning Clothing for Professional Use-Test Methods (2003).

The invention belongs to the technical field of solar batteries, which more particularly relates to a preparation of a novel triphenylamine group organic dye and the application thereof as a photosensitizer in a dye-sensitized solar cell. The triphenylamine group organic dye provided by the invention has excellent light-capturing capacity; the D-Pi-A molecular structure thereof causes the effective transferring of the electrons in the molecule. The titanium dioxide electrode sensitized by the dye is applied to the dye-sensitized solar cell and obtains a higher photoelectric conversion property. The novel triphenylamine group organic dye provided by the invention is novel in structure, is easy to be composed, is low in cost, and has excellent photoelectric properties, can be modified by molecule designing and shows a potential application prospect to replace a heavy metal organic photosensitizer.

Disclosed is a photoelectric conversion device wherein a methine dye represented by the formula (1) below is supported by a thin film of oxide semiconductor particles arranged on a substrate. Also disclosed is a solar cell manufactured by using such a photoelectric conversion device.

(In the formula (1), n represents an integer of 0-5; m represents an integer of 0-5; R₁-R₄ independently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; X and Y independently represent a hydrogen atom; an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; Z represents an oxygen atom, a sulfur atom or the like; A₁, A₂, A₃, A₄ and A₅ independently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; and rings a, b and c may be substituted.)

Sterically stabilized second-order nonlinear optical chromophores and devices incorporating the same are embodied in a variety of chromophore materials. An exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a ring-locked bridge structure therebetween, with the bridge structure being directly connected to the electron donor via a single bond. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a ring-locked bridge structure between the electron donor group and the electron acceptor group, with two free double bonds, one located between the donor and the bridge and the other located between the (fused) ring bridge and the acceptor. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group, and a bridge structure therebetween, with the chromophores having no carbon-carbon double bond between the donor and the (fused) ring bridge. In this class, there is only one unlocked carbon-carbon double bond between the (fused) ring bridge and the acceptor. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group, and a ring-locked bridge structure therebetween, with a built-in electron-withdrawing cyano group on the last ring of the (fused) bridge. Another exemplary preferred chromophore includes any electron donor group, an electron acceptor group including a linear conjugated triene bearing four cyano groups, and any bridge structure therebetween.

An azo compound which is reduced in the copper ion content and exhibits hue and clarity suitable for ink-jet recording and which can give records having excellent light fastness, water resistance, and moisture proofness, and such ozone resistance as to control the fading and the discoloration; and water-base yellow inks containing the same. In particular, the azo compound represented by the formula (12) having a content of impurity copper ions of 100 ppm or below or salts thereof; and inks containing the same.

The invention discloses a preparation method for 6-sulfonic acid liquid fluorescent brightener. In the prior art, cyanuric chloride, DSD acid, sulfanilic acid and diethanolameine are subjected to three-step condensation to obtain the optical brightener; and when the fluorescent brightener is applied to paper, the highest whiteness is not high, the chromatic light is cyan light, the surface of the paper is dark and the reactivity is not high. The preparation method comprises the following steps: a) aniline-2, 4-disulfonic acid and aniline-2, 5-disulfonic acid are reacted with the cyanuric chloride to obtain a mixture of benzene-2, 4-(4, 6-dichlorotriazine-2-amino) disulfonic acid and benzene-2, 5-(4, 6-dichlorotriazine-2-amino) disulfonic acid; and b) the mixture obtained in step a) and 4,4-diaminostilbene-2,2-disulfonic acid firstly undergo the second step condensation, the obtained product and drewamine undergo the third step condensation, and finally the 6-sulfonic acid liquid fluorescent brightener composition is obtained. The product of the invention has the function of compounding enhanced effect, solves the problem of poor stability of single component and greatly improves the yield and quality.

The invention discloses a hemicyanine fluorescent dye and a preparation method and application of the hemicyanine fluorescent dye. The hemicyanine fluorescent dye is obtained through the steps of adding 4-methylpyridine and N, N-diethyl-benzaldehyde into n-butanol according to the mole ratio of one to one, enabling the mixture to react for 4 hours to 6 hours at the temperature ranging from 100 DEG C to 105 DEG C, then, adding 2-chloroethylaminehydrochloride with the molar weight same as the molar weight of the 4-methylpyridine to the solution, enabling the mixture to react at the temperature ranging from 75 DEG C to 80 DEG C, and conducting column chromatography isolation. The hemicyanine fluorescent dye is simple in preparation process and high in productivity, and has good linear optical performance and non-linear optical performance. The dye simultaneously contains cation dye functional groups N<+> and crosslinking dye functional groups NH[2], can be used for dyeing of acrylic fibers, cotton fibers, silk fibers and wool fibers, and is wide in application range. The produced obtained through dyeing is bright in color and good in fluorescence effect.

A non-linear chromophore is obtained by reacting a picolinium halide having a desired functional group (preferably —OH) with a lithium TCNQ adduct. If desired, the chromophore can be graft polymerized onto a polymer which has complementary functional groups (preferably carboxyl groups). Optionally the polymer can then be cross-linked. Such polymers are useable in electro-optical devices.

The invention discloses a preparation method for triazine-stilbene liquid fluorescent brightener. The prior preparation method has the following problems: secondary reactions are numerous, the yield of the product is low and the quality of the product is poor. The preparation method comprises the following steps: a) cyanuric chloride, sulfanilic acid and metanilic acid undergo the first step condensation to obtain a mixture containing two components, namely 4-(4, 6-dichlorotriazine-2-amino) benzene sulfonic acid and 3-(4, 6-dichlorotriazine-2-amino) benzene sulfonic acid; and b) the mixture obtained in step a) and 4,4-diaminostilbene-2,2-disulfonic acid firstly undergo the second step condensation, the obtained product and diethanolameine undergo the third step condensation, and finally symmetrical and unsymmetrical triazine-stilbene liquid fluorescent brightener compositions are obtained. When whitening paper, the triazine-stilbene liquid fluorescent brightener has better whitening effect than single component, and has the function of compounding enhanced effect, and simultaneously the triazine-stilbene liquid fluorescent brightener has the advantages of good water-solubility, high whiteness and small use amount.

The present invention provides a fluorescent dye-silane hybrid resin manufactured by polycondensing an alkoxysilane bonded with a fluorescent dye with an organo-silane. More particularly, the present invention provides a fluorescent dye-siloxane hybrid resin that is manufactured by reacting a fluorescent dye having one or more functional groups with an alkoxysilane having an organic functional group to form an alkoxysilane bonded with the fluorescent dye and then polycondensing the alkoxysilane bonded with a fluorescent dye with an organo-silanediol and an organo-alkoxysilane having a thermocurable or ultraviolet-curable functional group without water. The fluorescent dye-silane hybrid resin has excellent thermostability, photostability, fluorescence characteristics, and processibility.