46results about How to "Photosensitivity" patented technology

A photothermographic recording material comprising a photo-addressable thermally developable element coatable from aqueous media comprising a substantially light-insensitive organic silver salt, photosensitive silver halide in catalytic association with the substantially light-insensitive organic silver salt and a reducing agent in thermal working relationship with the substantially light-insensitive organic silver salt and a binder, characterized in that the binder comprises a water-soluble polymer, a water-dispersible polymer or a mixture of a water-soluble polymer and a water-dispersible polymer and particles of the photosensitive silver halide are non-aggregating in the photo-addressable thermally developable element and are uniformly distributed over and between particles of the substantially light-insensitive organic silver salt, at least 80% by number of the particles having a diameter, determined by transmission electron microscopy, of <=40 nm; and a recording process therefor.

The invention provides a heat-resistant insulating paint with fast curing speed. The heat-resistant insulating paint comprises the following ingredients in parts by weight: 30-40 parts of epoxy acrylate, 30-50 parts of activated diluent, 1-10 parts of photoinitiator, 5-15 parts of talcum powder, 1-10 parts of mica powder, 0.1-0.3 parts of defoaming agent, 0.1-0.5 parts of levelling agent, 0.01-2 parts of wetting dispersing agent, and the balance of pigment, wherein the mass ratio of epoxy resin to acrylic acid in the epoxy acrylate is 2:1, and the activated diluent is triuret propylene glycol diacrylate. The heat-resistant insulating paint with fast curing speed has the advantages of being fast to cure, and good in impact resistance and flexibility and other mechanical properties, the paint is good in insulation and heat resistance, as well as green and environmentally-friendly, thus being a heat-resistant insulating paint which is wide in application range and suitable for use in large-scale production.

The invention discloses a photosensitive amphiphilic copolymer containing thymine. The photosensitive amphiphilic copolymer P(St / VBT-co-MA) is prepared from 1-(4-vinylbenzyl)thymine (VBT), styrene, maleic anhydride, azodiisobutyronitrile (AIBN) and tetrahydrofuran through a reaction in an oil bath with a temperature of 60 to 70 DEG C for 20 to 24 h and repeated purification with toluene after completion of the reaction, wherein 1-(4-vinylbenzyl)thymine (VBT), styrene and maleic anhydride are used as copolymerization monomer, azodiisobutyronitrile (AIBN) is used as an initiator and tetrahydrofuran is used as a solvent. A micelle can be prepared from the copolymer through self-assembly. The copolymer simultaneously contains a hydrophilic chain segment and a hydrophobic chain segment and can form the micelle in deionized water throughy; a thymine group on the hydrophobic chain segment can undergo photocrosslinking, which enables the copolymer to have photosensitivity; and the self-assembled micelle has good dispersibility, a controllable particle size and photosensitivity and can be used for a sensing coating.

The invention discloses a display module, an application method thereof and a display device. The display module comprises a first display area, a second display area, a display panel and a backlightmodule, wherein the backlight module comprises a first through hole and a first supporting part at least partially located in the first through hole. The display module also comprises a photosensitiveelement which comprises a driving mechanism; a light supplementing module which comprises a light supplementing source and a flexible circuit board; and a connecting part which is connected with thephotosensitive element and the light supplementing module. The first display area comprises a display stage and a photosensitive stage, in the display stage, orthographic projections of the light supplementing module and the photosensitive element on the display panel are at least partially overlapped, and at the moment, light emitted by the light supplementing source supplements light to the first display area, so that the first display area can realize a display function, and the design of a full screen is realized; in the light sensing stage, the orthographic projections of the light supplementing module and the light sensing element on the display panel are not overlapped, so that the light supplementing module does not influence the light sensing performance of the light sensing element, and the light sensing performance of the light sensing element is improved.

The invention provides bio-based photo-curable polyurethane and a photoresist composition from the same and belongs to the field of photoresists. The photoresist composition is prepared by: reacting bio-based monomer isosorbide with a diisocyanate to obtain NCO-terminated monomer, reacting this monomer with dihydroxy acid to synthesize polyurethane prepolymer, terminating with acrylate monohydric alcohol to obtain bio-based photo-curable polyurethane, mixing the prepared polyurethane proportionally with a photoinitiator, a solvent, an active diluent and a pigment in the shade, and stirring well to enable full dissolution. By introducing the isosorbide, it is possible to improve corrosion resistance of the photoresist and improve its thermal performance and it is possible to produce an image with good comprehensive performance and high resolution.

The invention relates to a random copolymer polystyrene-co-poly-methacryloyl ethyl cinnamate (PS-co-PCEMA) with photosensitivity and a preparation method of a honeycomb ordered porous film. The honeycomb ordered porous film disclosed by the invention has the characteristics that the method is simple in preparation technology, and good in porous film ordering property, and the prepared honeycomb ordered porous film has photosensitivity.

The invention discloses a potted landscape light which comprises a base. A drawer for holding tools is arranged on the base. A flexible plate, which can surround a potted landscape, is arranged at the top end of the base. Buckles, which can be connected with each other, are arranged at the two ends of the flexible plate. A lighting circuit is arranged on the base, and comprises bulbs, a bidirectional thyristor, a time base integrated circuit, photo resistors, a relay and a power line connected with an AC source provided by a mains supply. The bulbs and the bidirectional thyristor are connected in series between the positive electrode and the negative electrode of a power source. The control electrode of the bidirectional thyristor is connected with the output end of the time base integrated circuit. The input ends of the time base integrated circuit are connected with the photo resistors. The relay is connected between the bidirectional thyristor and the bulbs. An electromagnet connected with a normally closed contact of the relay is arranged on the base. Iron blocks attracted by the electromagnet are arranged at the corresponding positions of the drawer. The bulbs are arranged on the flexible plate. The potted landscape light has the functions of lighting automatically and providing self-protection tools.

The invention discloses an additive and a photoresist composition containing the additive, the additive is a pyrazoline compound and a five-membered heterocyclic compound composed of two connected nitrogen atoms and three carbon atoms, the additive has a double bond, the structure contains lone pair electrons, the lone pair electrons and metal atoms can form covalent bonds, and the metal atoms can form metal atoms. The pyrazoline compound is a very important organic heterocyclic compound; the photoresist composition disclosed by the invention comprises the linear phenolic resin, the photosensitizer, the solvent, the sensitizer, the flatting agent and the additive, and the additive can be adsorbed on the surface of metal to form a compact protective film, so that the corrosion of the metal is inhibited, the occurrence of side surface corrosion in the developing process is reduced, and the corrosion resistance of the photoresist is effectively improved.

The invention discloses an LED (Light-emitting Diode) street lamp cover, which comprises an inner cover shell and an outer cover shell. The outer cover shell is nested on an outer wall of the inner cover shell; a plurality of heat radiation holes are formed in the top part of the outer cover shell; a plurality of support bars are arranged on a side wall of the outer cover shell; the side wall of the outer cover shell comprises a connecting part and a main body part; a step is arranged at a connected part of the connecting part and the main body part; a connecting structure and a plurality of buckling mechanisms are arranged on the connecting part; a light transmitting port is formed in the main body part; and a light transmitting plate is arranged on the inner cover shell. According to theLED street lamp cover provided by the invention, the outer cover shell is additionally arranged outside the inner cover shell, and the outer cover shell is locked and matched with the inner cover shell, so that the service life of the lamp cover is prolonged; a heat radiation effect of the heat radiation holes in the top part of the outer cover shell is good, and the support bars on the side wallof the outer cover shell are matched with the outer wall of the inner cover shell, so that a heat radiation gap between the outer cover shell and the inner cover shell is increased; and through the interaction of the light transmitting plate and the light transmitting port, an internal light controller is more sensitive to sense light and better controls a street lamp to switch on and switch off,so that the resources are saved.

The invention relates to a method for preparing a photosensitive nanocomposite supramolecular hydrogel. In tetrahydrofuran solvent, mercaptopolyethylene glycol monomethyl ether or polyethylene glycol monomethyl lipoate is used as a stabilizer, and chloroauric acid is reduced in situ to form polyethylene glycol monomethyl ether under the action of a reducing agent. Assembling the gold nanocomposite particle of single-layer protection, then the aqueous solution of gold nanoparticles self-assembled single-layer protection of polyethylene glycol monomethyl ether with a mass percentage concentration of 3-20% and a mass percentage concentration of 5-12% α - Cyclodextrin aqueous solution mixed, α -Cyclodextrin is assembled with polyethylene glycol monomethyl ether on the surface of gold nanoparticles to obtain a photosensitive nanocomposite supramolecular hydrogel. The synthesis method of the invention is simple and easy, and the prepared gold nano composite particles have good water dispersibility and stability, and the nano gold is uniformly distributed in the composite supramolecular hydrogel. The nanocomposite supramolecular hydrogel prepared by the invention not only has the performance of shear thinning, but also has photosensitivity, and is expected to be used in the field of biomedical engineering materials as a new injection implant functional material.

The invention provides a method for modifying photoresisting materials by photosensitive nano-silica, belonging to the technical field of high polymer photoresisting materials. In the method, a sol-gel method is adopted to prepare nano-silica sol, then a silane coupling agent containing double bonds is used as a main raw material to carry out in-situ grafting modification on the surface of the nano-silica sol to obtain photosensitive nano-silica, the photosensitive nano-silica is added to the ultraviolet curing alkali soluble prepolymers and the photoresisting materials modified by the photosensitive nano-silica are obtained through interaction between the double bonds on the surface of the photosensitive nano-silica and the double bonds in the ultraviolet curing alkali soluble prepolymers. After modifying the photoresisting materials, the photosensitive performance and dimensional stability to heating of the photoresisting materials can be obviously improved. The photoresisting materials modified by the method can be applied to the fields such as etching resistance of printed circuit boards, imaging ink, color filters of liquid crystal displays and the like.

The invention discloses a sulfonic acid tetraphenyl porphyrin nano-fluorescent material and a preparation method thereof, which relate to a fluorescent porphyrin material and a preparation method thereof. The sectional shape of the material is of a rectangular sheet or strip or sheet and strip. The method comprises the following steps: preparing a TPRS alcohol solution first, preparing a TPPS nano-fluorescent material dispersion system, and obtaining a product through separation and drying. The material has smaller size and better photosensitivity, has good characteristics of a porphyrin monomer such as rigidity and flexibility, electronic buffer capacity, photosensitivity, high chemical stability, wide spectral response, and also has special properties after the nanometer treatment such as small-size effect, surface effect, quantum effect, interfacial effect. The method is simple, has low production cost, and is convenient for promotion and application. The material prepared by adopting the method can be widely used as markers, photosensitive materials as well as sensitive recognition elements and materials for constructing photoelectric devices, molecular devices and sensors.

The invention relates to a photoetching lithium-aluminum-silicon glass material and its preparation method and application. The components of the lithium-aluminum-silicon glass material by weight percentage are: SiO 2 72~76wt%; Li 2 O 10~15wt%; K 2 O 3~4wt%; Al 2 o 3 6~8wt%;Na 2 O 2~3wt%; ZnO 1~1.2wt%; Sb 2 o 3 0.8~1.5wt%; Ce 2 o 3 0.04~0.08wt%; Ag 2 O 0.04 to 0.08 wt%. The photoetched lithium-aluminum-silicon glass material prepared in the present invention has simple and clear material composition, convenient production process, and the prepared glass material has the same photosensitivity as the same type of glass.

The invention relates to a traditional Chinese medicine composition for treating insomnia. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 1-5 parts of coptis chinensis, 7-11 parts of fructus psoraleae, 7-11 parts of folium artemisiae argyi, 1-5 parts of safflower, 14-21 parts of fleshfingered citron flower, 7-11 parts of folium mori, 1-5 parts of cinnamon, 7-11 parts of cardamom, 7-11 parts of rose, 7-11 parts of radix angelicae and 7-11 parts of mint. The invention further provides application of the traditional Chinese medicine composition. The compress bag has the curative effect of hot compress, the traditional Chinese medicine composition serves as a pillow to be cushioned under the neck of a patient, medicine fragrance emitted by the traditional Chinese medicine composition helps the patient to relax and fall asleep, and the compress bag is suitable for symptoms such as insomnia and dreaminess, restless mood, dizziness, weakness and tiredness, cold hands and feet, cold shape and cold limbs and the like.

The invention relates to a random copolymer polystyrene-co-poly-methacryloyl ethyl cinnamate (PS-co-PCEMA) with photosensitivity and a preparation method of a honeycomb ordered porous film. The honeycomb ordered porous film disclosed by the invention has the characteristics that the method is simple in preparation technology, and good in porous film ordering property, and the prepared honeycomb ordered porous film has photosensitivity.

The invention discloses a photosensitive amphiphilic copolymer containing thymine. The photosensitive amphiphilic copolymer P(St / VBT-co-MA) is prepared from 1-(4-vinylbenzyl)thymine (VBT), styrene, maleic anhydride, azodiisobutyronitrile (AIBN) and tetrahydrofuran through a reaction in an oil bath with a temperature of 60 to 70 DEG C for 20 to 24 h and repeated purification with toluene after completion of the reaction, wherein 1-(4-vinylbenzyl)thymine (VBT), styrene and maleic anhydride are used as copolymerization monomer, azodiisobutyronitrile (AIBN) is used as an initiator and tetrahydrofuran is used as a solvent. A micelle can be prepared from the copolymer through self-assembly. The copolymer simultaneously contains a hydrophilic chain segment and a hydrophobic chain segment and can form the micelle in deionized water throughy; a thymine group on the hydrophobic chain segment can undergo photocrosslinking, which enables the copolymer to have photosensitivity; and the self-assembled micelle has good dispersibility, a controllable particle size and photosensitivity and can be used for a sensing coating.