149results about How to "Good Photochromic Properties" patented technology

A photochromic optical article comprises a substrate, and a photochromic coating coated on an outer surface of the substrate and having at least two photochromic layers. Each of the photochromic layers has a composition that contains a carrier and at least one photochromic dye. The compositions of the photochromic layers are different from each other.

A photochromic naphthopyran displays good color distribution when the naphthopyran has a central nucleus of the formula: wherein F is a 5-member, 6-member, or 7-member heterocyclic ring group having only one heteroatom, the heteroatom selected from the group consisting of oxygen, sulfur, and nitrogen, the 2,3 or 3,2 positions of the heterocyclic ring fused to the g, h, or i side;R1 and R2 are the atoms or groups providing photochromic properties to the naphthopyran.

The invention relates to a preparing process and application sequential mesoporous silicon dioxide film with high amino content. The preparing process of the invention takes various surface active agent as template, takes tetraethyl ortho-silicate and 3-3-aminopropyl triethoxysilane as the silicon source, utilizing sol-gel manner, leading the amino silane to take the molar percentage of the whole silane of 30-60 by introducing amino silane directly part of silica sol, after forming homogeneous solution, relying on the synergy of the silane and organic templates, forming films by dip-coating on the clear substrate, finally forming functional sequential silicon dioxide film with different meso-structure and high amino content. The silicon dioxide mesoporous film of the invention has perfect assembly and fixing property to organic molecules, inorganic anions, protein, enzyme molecule and the like object materials.

Provided is a method for producing a photochromic optical article having a photochromic coating layer exhibiting photochromism formed on an optical base such as a plastic lens which has good optical characteristics and photochromic characteristics, and also has good adhesion between the base and the photochromic layer. The method enables to easily produce such a photochromic optical article by improving wettability of a photochromic coating agent for a primer. In this method, the photochromic optical article is produced by forming a primer layer on the optical base surface by coating a primer comprising an emulsion which has a colloidally dispersed urethane resin in a dispersion medium, and then forming on the primer layer.

A curable composition comprising (1) 0.1 to 20 parts by weight of a silicon compound having a silanol group or a functional group for forming a silanol group upon hydrolysis and no radically polymerizable group, such as γ-glycidoxypropyltrimethoxysilane, (2) 100 parts by weight of radically polymerizable monomers and (3) 0.01 to 20 parts by weight of a photochromic compound, wherein the radically polymerizable monomers include a radically polymerizable monomer having an epoxy group in the molecule, such as glycidyl methacrylate. This curable composition is capable of forming a photochromic coating layer which shows excellent photochromic properties such as high color development density and fast fading rate, is free from the dissolution of the photochromic compound, exhibits high adhesion to a substrate through a simple pre-treatment and has excellent hard coating applicability.

A photochromic curable composition comprising 100 parts by mass of polymerizable monomers which include 70 to 100 mass % of polymerizable monomers having two to four (meth)acrylic groups and 0 to 30 mass % of a polymerizable monomer having one (meth)acrylic group and 0.01 to 20 parts by mass of a photochromic compound, whereinthe number of moles of the methacrylic group existent in the polymerizable monomer composition is 3 to 7 times the number of moles of the acrylic group. This composition can provide a lens having a photochromic coating which exhibits excellent photochromic properties, comprises a hard coat layer having sufficiently high adhesion and scratch resistance and has no delay in fading and has excellent storage stability.

A photochromic cured product exhibiting favorable photochromic properties such as a high color density and a large fading rate, and excellent base member properties such as a high hardness, a high heat resistance and a high impact resistance. A curable composition contains a polymerizable monomer which exhibits the L-scale Rockwell hardness of not larger than 40, a bifunctional polymerizable monomer which exhibits the L-scale Rockwell hardness of not smaller than 60, a polyfunctional polymerizable monomer which exhibits the L-scale Rockwell hardness of not smaller than 60, and a photochromic compound.

The present invention relates to a photochromic acrylic polyurethane varnish and a preparation method thereof, and belongs to the technical field of functional coating. The method comprises steps of: preparing a varnish from In 1, 3, 3- trimethyl-3H-spiroindolinonaphthoxazine, hydroxy acrylic resin, high hydroxy saturated polyester resin, urea / carbamic acid ester liquid thixotropic agent, acrylic leveling agent and organosilicone leveling agent; filtering out the materials or filtering out the materials and diluting by butyl acetate solvent; and preparing the paint and curing agent component cyclohexane diisocyanate trimer into the photochromic acrylic polyurethane varnish according to formula proportion. The photochromic acrylic polyurethane varnish provided by the invention has wide application value and development prospect.

A photochromic laminate comprising a base material of a thermoplastic resin having light-transmitting property, a crosslinked resin layer formed on the surfaces of the base material and containing inorganic colloidal particles in an amount of 20 to 40% by mass, and a photochromic coating formed on the surfaces of the crosslinked resin layer. Though the laminate has the layer exhibiting photochromic property formed thereon by the coating method, the surfaces of the base material of a thermoplastic resin are suppressed from being whitened or swollen. Therefore, the base material exhibits excellent optical properties, a high adhesiveness to the photochromic coating, and superior durability.

There is provided a coating composition which can be applied to a substrate such as a plastic lens so as to form a photochromic coating layer having good photochromic properties and excellent adhesion to the substrate on the surface of the substrate. This composition comprises, for example, as monomer components, 0.1 to 20 wt % of monomer having a group which produces a silanol group through hydrolysis such as γ-methacryloyloxypropyltrimethoxysilane and 0.1 to 50 wt % of monomer having at least one oxycarbonyl group in a molecule. The composition can further contain a maleimide compound as a monomer component and further desirably contains an amine compound.

The invention relates to a photochromic viscose fiber and a preparation method thereof, belonging to the technical field of textile. The photochromic viscose fiber is prepared from an adhesive, photochromic microcapsules and a fiber reinforced agent, wherein the content of the photochromic microcapsules is 1-20wt%, and the content of the fiber reinforced agent is 0.1-10wt%. The preparation method of the photochromic viscose fiber comprises the following steps: (1) dissolving the photochromic microcapsules and the fiber reinforced agent into water to form dispersed viscose emulsion; (2) feeding the dispersed viscose emulsion into viscose to be spun, and mixing; (3) molding by spinning in an acid bath to obtain a photochromic viscose fiber product. The photochromic viscose fiber is simple and reasonable in components and simple in preparation method; the obtained fiber is uniform in whole color change; the strength of the photochromic viscose fiber reaches or exceeds that of the conventional viscose fiber, so that the demand of fabric manufacture can be met.

A composition comprising: a polycarbonate comprising units derived from a bisphenol cyclohexylidene of the formula:wherein Rc1 and Rd1 are each independently C1-12 alkyl, Rc2 and Rd2 are each independently hydrogen or C1-12 alkyl, Rg is C1-12 alkyl or halogen, and t is 0 to 10; and a poly(ether-ester) copolymer comprising 40 to 60 wt % of polyester hard block units derived from a C6-C24 aromatic dicarboxylic acid or a C6-C24 alicyclic dicarboxylic acid and at least one glycol component, wherein when the C6-C24 aromatic dicarboxylic acid comprises terephthalic acid, isophthalic acid groups are present in an amount from 0 to 30 mole %, based on the total moles of isophthalic acid groups and terephthalic acid groups in the hard block units, and 40 to 60 wt % of polyether soft block units derived from poly(oxytetramethylene) glycol, wherein the molecular weight of the poly(oxytetramethylene) glycol groups is 300 to 1800 Daltons.

This invention discloses the fluoric poly-imides resin and its preparation method, as well as its application. It relates to the azobenzene photochromic compounds and its preparation technology. Using two different anhydrides, the fluoric poly-imides resin whose amidation principal chain accompanied with active hydroxyl was synthesized firstly, then catenated DR1 to the side chain skeleton of the fluoric poly-imides resin. So the poly-imides resin with azobenzene side chain was obtained. The polymer obtained by this invention has the good performance of heat-staple and workability, and has the similitude photochromic action with monomer. The poly-imides resin has the widespread application prospect in the aspect of optical information storage.

A curable composition comprising (1) 0.1 to 20 parts by weight of a silicon compound having a silanol group or a functional group for forming a silanol group upon hydrolysis and no radically polymerizable group, such as γ-glycidoxypropyltrimethoxysilane, (2) 100 parts by weight of radically polymerizable monomers and (3) 0.01 to 20 parts by weight of a photochromic compound, whereinthe radically polymerizable monomers include a radically polymerizable monomer having an epoxy group in the molecule, such as glycidyl methacrylate.This curable composition is capable of forming a photochromic coating layer which shows excellent photochromic properties such as high color development density and fast fading rate, is free from the dissolution of the photochromic compound, exhibits high adhesion to a substrate through a simple pre-treatment and has excellent hard coating applicability.

The invention discloses a photochromic bi-thiophene six-sugar water-solubility symmetrical octafluorocyclopentene compound and a synthetic method and a purpose thereof. A photochromic material can maintain good photochromic performance in solutions or films, the superior performance of a high cyclizing quantum yield, good sensitivity and the like is achieved in a open-loop state (a colorless state) and a closed-loop state (a color generation state), the open-loop state has strong fluorescent light occurs in a 350-550 nm range, luminance of the fluorescent light is reduced along with increasing of ultraviolet light emission time, and the closed-loop state has no fluorescent light, so the compound can be used for fluorescence detection and fluorescence light-operated switches. Compared with symmetrical thiophene or benzo thiophene type octafluorocyclopentene materials, the compound is low in cost of prepared materials and wide in application prospect.

The invention relates to a method for preparing photochromic glass of which the glass body presents different colors under different light sources. The preparation method comprises the following steps: (1) burdening; (2) mixing and performing ball-milling; (3) melting; (4) molding; and (5) annealing. The photochromic glass prepared by the method is claret-colored under solar radiation, is red in an incandescent light bulb, is ultramarine in a fluorescent lamp and has the characteristics of independent Nd2O3 developing and color change, good developing effect, fast color change response time, low cost, simplicity and convenience in manufacture and the like.

A photochromic chromene compound which develops a color of a neutral tint, has high color optical density, a high fading speed and high durability, and has an indeno(2,1-f)naphtho(1,2-b)pyran structure represented by the following formula as the basic skeleton, wherein a sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group is bonded to the 6-position and / or 7-position carbon atom(s).

The invention discloses photochromic glass with a high elasticity modulus. The photochromic glass comprises the following components in percentage by weight: 2-8% of Li2O, 15-24% of Al2O3, 0-7% of B2O3, 50-72% of SiO2, 0-8% of K2O, 0-4% of MgO, 0-1% of CaO, 0-15% of Na2O and 0.5-8% of WO3; and the photochromic glass is prepared according to the following steps: preparing materials: preparing the glass raw materials according to the above components; performing mixing and ball milling: loading the prepared glass raw materials into a ball mill, and performing full mixing and ball milling; performing melting: melting the milled glass raw materials in a smelting furnace, and enabling the glass material liquid to be clarified and uniform; performing forming: pouring the glass material liquid into a mold for forming; and performing annealing: placing the formed glass sample into an annealing furnace, and performing annealing to finally obtain the photochromic glass with the high elasticity modulus. The prepared photochromic glass provided by the invention has the characteristics of the high elasticity modulus, excellent color developing effects, fast color change response time, low costs, simple and convenient manufacture and the like.

A photochromic curable composition comprising,as radically polymerizable component (A), a silsesquioxane component (A1) having a radically polymerizable group and a bifunctional radically polymerizable monomer (A2) represented by the following general formula (1),wherein a is a number of 0 to 30, and b is a number of 0 to 30 on condition that an average value of a+b is 2 to 30,R1, R2, R3 and R4 are each a hydrogen atom or a methyl group, andA is a divalent organic group on condition that the number of carbon atoms is 1 to 20, and a photochromic compound (B).

A polymerizable composition for optical materials of the present invention includes a polyisocyanate compound (A), a polyol compound (B) represented by the following General Formula (1) having a number average molecular weight of 100 or more, a di- or higher functional active hydrogen compound (C) (here, the compound (B) is excluded), and a photochromic compound (D).

The invention discloses a photosensitive composite thin film material and a preparation method and application thereof. The photosensitive composite thin film material comprises a multi-metal oxide and organic matters. The concentration of the organic polymer solution is in a range of 10<-3> to 10<-2>M. The concentration of the multi-metal oxide is in a range of 10<-3> to 10<-2>M. The preparation method comprises synthesizing a multi-metal oxide nanostructure by a hydrothermal method, immersing a cleaned substrate in a polymer solution so that a layer of the polymer film is adsorbed on the surface of the substrate, immersing the substrate with the polymer film in the solution containing the multi-metal oxide nanostructure so that a layer of the multi-metal oxide film is adsorbed, and repeating the above processes to obtain the desired photosensitive composite thin film material. The photosensitive composite thin film material has a high electron conduction rate, a high light response speed of the material and the photosensitive effects adjusted by change of the doping amount of Mo. The preparation method has the advantages of simple and fast operation. The photosensitive composite thin film material has the characteristics of fast light response and high contrast and has a great application prospect in the fast and accurate information storage.

A curable composition which comprises a carbonate-based polymerizable monomer represented by the following formula, other polymerizable monomers and a photochromic compound, can be used even under high-temperature and high-humidity conditions without any problems and provides a cured product having excellent photochromic properties.wherein A and A′ are each a linear or branched alkylene group having 2 to 15 carbon atoms, “a” is an average value of 1 to 20, when there are a plurality of A's, A's may be the same or different, R1 is a hydrogen atom or methyl group, and R2 is a (meth)acryloyloxy group or hydroxyl group.

The invention discloses a window capable of automatically adjusting the light and relates to the window. By means of the window capable of automatically adjusting the light, the light can be adjusted without adding curtains, funds are saved, and residents can adjust the light conveniently. The technical scheme is that the window comprises a window frame, a window sash, electrochromic glass, a movable member, a power source, a control switch, a single-chip microcomputer and an optical inductor, wherein the power source, the control switch and the electrochromic glass are connected serially, and the optical inductor is positioned on the outer side of the window sash and connected with the single-chip microcomputer which is connected with the control switch. The window has the advantages that the optical inductor arranged on the outer side of the window sash inducts sunlight, the single-chip microcomputer controls connection and disconnection of the circuit through the control switch, therefore, the transparent state and the opaque state of the electrochromic glass can be switched, light of the window can be adjusted automatically, manual adjustment is avoided, the curtains are not needed, the funds are saved, and the residents can adjust the light conveniently.

The invention discloses a preparation method of a thorn-ball photochromic MoO3 thin film. The preparation method comprises the following steps: (1) preparing a 0.05-3mol / L molybdate liquor; (2) adding a formaldehyde liquor to the molybdate liquor, adjusting the pH of the liquor by a pH adjustor to 0.8-1.5, and stirring and homogenizing in dark light; (3) transferring the homogenized reaction liquor to a reaction container, and placing a clean transparent conductive oxide crystal substrate for hydrothermal reaction; (4) after hydrothermal reaction, cooling to reaction system to room temperature, taking out the crystal substrate plated with film from the container for hydrothermal reaction, and washing with water and alcohol and drying to prepare the thorn-ball photochromic MoO3 thin film. The MoO3 thin film prepared by the invention can generate a good photochromic effect under a condition of a low power excitation light source, and the photochromic performance of the MoO3 thin film is improved.

The invention discloses a photochromic ceramic tile and a preparation method thereof. The preparation method comprises the steps of: A, preparation of ground glaze: by mass percentage, mixing 30-35% of frit, 3-7% of a functional agent, 20-28% of lithium porcelain stone, 5-10% of zirconium silicate, 20-25% of kaolin and 10-12% of quartz evenly, conducting wet ball-milling, and performing sieving to obtain slurry ground glaze; B, preparation of surface glaze: by mass percentage, mixing 70-80% of frit, 1-4% of conductive powder, 10-20% of kaolin, 5-8% of alumina, 1-2% of zinc oxide and 1-5% of zirconium silicate evenly, performing wet ball-milling, and conducting sieving so as to obtain slurry surface glaze; and C, applying the ground glaze and surface glaze prepared by step A and step B respectively to a tile blank in order, and performing firing so as to obtain the ceramic tile. Compared with the existing ceramic tiles, the ceramic tile prepared by the method provided by the invention has the characteristics of scientific compounding, reasonable preparation and stable performance. Also through reasonable collocation with conductive powder, photochromic compounds and antibacterial powder, the ceramic tile has excellent antibacterial, antistatic and photochromic properties, thus further broadening the application scope of ceramic tiles.

A photochromic curable composition that contains a (meth)acrylate compound represented by the following formula (1-X1);(wherein Y is an oxygen atom or a divalent group represented by —NH—, R1 and R2 are hydrogen atoms or methyl groups, R3 is an alkylene group having 1 to 6 carbon atoms, R4 is an alkylene group having 1 to 6 carbon atoms, a cycloalkylene group having 3 to 8 carbon atoms and which may include a double bond, or an arylene group having 6 to 10 carbon atoms, and a is a positive number of 1 to 20), other radically polymerizable monomers and a photochromic compound. The invention provides a lens that features excellent durability and high photochromic property free of the problems of turbidity in the surfaces of the lens caused by bleed out or the peeling in the step of production.

The invention discloses a photochromic thiophene-thiazole heterocycle hybrid asymmetric perfluorocyclopentene compound, a preparation method and application. The photochromic material can keep good photochromic performance in solution or films, has good chemical and thermal stability, remarkable fatigue resistance, high cyclized quantum yield, good sensitivity and the like in an open ring state (a colorless state) and a closed ring state (a color state), and has appointed absorption wavelength; the absorption spectrum in the color state is between 400 and 600 nanometers and is just matched with a laser device with the wavelength of 532 nanometers; the photochromic material can be used for the preparation of an organic photochromic photon recording medium with shorter wavelength, and also can be used for fluorescence detection and a fluorescent light-operated switch; and the photochromic material is primarily used for high-density holographic optical storage, and the storage attribute of the photochromic material is erasable photon type storage.