30results about How to "Good light fastness" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

This invention discloses a gravure printing ink composition and its preparation method. The ink, by weight, comprises: 15-35 parts chlorinated polypropylene, 10-20 parts EVA-40W, 4-8 parts rosin-modified resin, 0.3-0.8 parts polyketide resin, 0.1-0.3 parts chlorinated ether resin MP45, 0.3-0.8 parts silica, 0.05-0.15 parts antistatic agent, 0.2-0.5 parts dispersant, 0.1-0.3 parts modified aluminum silicate AM660, 8-12 parts benzidine yellow, 6-10 parts fast red BHXL-T, 3-5 parts permanent orange yellow No. 13, 3-7 parts calcium powder, and 30-50 parts mixed solvent. During preparation, each resin is pre-dissolved separately, then mixed with pigments, additives, etc., and ground to a fineness ≤15μm. The ink of this invention has bright colors, good light resistance, excellent adhesion, antistatic properties, and printability, and is particularly suitable for gravure printing on polyolefin films.

The present application relates to the field of coatings, and in particular to a coating material for a film-coated aluminum plate and a preparation method thereof. The coating material for a film-coated aluminum plate comprises, by weight, 75 to 95 parts of aqueous polyurethane emulsion, 25 to 40 parts of modified functional resin, 20 to 30 parts of modified particles, 5 to 15 parts of auxiliary agent, 6 to 12 parts of dispersant, 2 to 5 parts of adhesion promoter, 5 to 8 parts of curing agent, 1.5 to 3 parts of leveling agent, 0.5 to 1.5 parts of defoaming agent, and 140 to 200 parts of deionized water. The coating material for the laminated aluminum plate prepared in the present application uses polyurethane as the main material to ensure its adhesion to the laminated aluminum plate, and on this basis, greatly enhances the waterproofness, antistatic properties, weather resistance, light resistance and other properties of the coating material during long-term use. Different from the existing surface coating materials for laminated aluminum plates, it can take into account and balance multiple surface properties, thereby enhancing the application effect of the laminated aluminum plate, avoiding the technical problems of the existing coating materials for laminated aluminum plates, and has very excellent market and application prospects.

The present invention provides a reversible thermochromic composition which exhibits black color upon coloration and colorless color upon discoloration, and has excellent light resistance, by using a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The means for solving the problem is a reversible thermochromic composition comprising: (a) a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, (b) a compound having a specific structure as an electron-accepting compound, and (c) a reaction medium which allows the electron transfer reaction between the (a) component and the (b) component to occur reversibly in a specific temperature range, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition.

According to the construction process, a hopper feeding device, a transmission system, a heating extrusion device, a cooling shaping device, a cutting device, a thread rolling device, a traction device, a grinding device and a sterilization device are arranged. The acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good non-toxic biodegradability, the acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good in-vivo biocompatibility, degradation products of lactic acid and glycolic acid can participate in metabolism of a human body, and finally carbon dioxide and water are formed and discharged out of the body. Meanwhile, the material is degraded by organisms and microorganisms in the natural world in the natural environment; by adding the traditional Chinese medicine pigment and adding a small amount of surfactant (phenol polyethylene glycol solvent or zinc naphthenate), the finished acupuncture needle has excellent weather resistance, light resistance, chemical corrosion resistance and ultraviolet resistance.

This invention discloses a light-resistant biodegradable plastic, its preparation method, and its application in dustproof netting. The raw material composition of the light-resistant biodegradable plastic, by weight, includes: 60-70 parts polylactic acid (PLA), 10-15 parts lignin, 5-10 parts toughening agent, 5-8 parts UV-shielding agent, 3-5 parts compatibilizer, 1-2 parts composite nucleating agent, and 0-0.5 parts colorant. The UV-shielding agent is composed of sericite, glass microspheres, and fluorite powder. The layered structure of sericite and the spherical structure of glass microspheres reflect ultraviolet light from multiple angles, while the fluorite powder absorbs and converts the transmitted ultraviolet light, thereby shielding ultraviolet rays and increasing the light resistance of PLA. A compatibilizer is used to modify the nano-lignin, which absorbs ultraviolet light and converts the light energy into heat energy in a timely manner, preventing ultraviolet light from attacking the PLA chain segments. It has stable processability, low cost, and stable raw material supply, making it suitable for use in dustproof netting.

The invention belongs to the technical field of reactive dyes, and particularly provides a preparation method of a bright yellow reactive dye. The bright yellow reactive dye prepared by the method disclosed by the invention is a bisazo dye, the fixation rate is relatively high, the color of a dyed fabric is full, sulfonic groups are increased, and the dye solubility is good; the dye is high in solubility and improvement rate, good in leveling property, green and bright in color, good in light fastness and wet rubbing fastness, good in cleaning rate and suitable for dyeing various cellulosic fibers, the fixation rate reaches 65%, the dye belongs to environment-friendly and energy-saving dye, the product is suitable for dyeing various cellulosic fibers, the production process is simple, clean and environmentally friendly, spray drying is adopted after synthesis, the wastewater discharge amount is reduced, and the production cost is reduced. And the national energy conservation and emission reduction policy is met.

Provided is a fluorene compound represented by formula (1) and having a sulfonic acid ester structure and an allyl group. # imgabs0 # (In the formula, each R1 independently represents a hydrogen atom or a methyl group. Each R2 independently represents a hydrocarbon group having 1-20 carbon atoms, some or all of the hydrogen atoms thereof may be substituted by a halogen atom, a nitro group or a cyano group, and an ester bond or an ether bond may be interposed between carbon-carbon bonds thereof. ).

The present invention is an azo compound represented by formula (1): # imgabs0 # (in formula (1), Ar represents a benzene ring which may have a substituent, a naphthalene ring which may have a substituent, or a heterocyclic ring which may have a substituent, and A represents an arbitrary substituent) or a salt thereof.

The present invention relates to an aramid dope-dyed yarn and a manufacturing method therefor, the aramid dope-dyed yarn being manufactured by blend spinning a mixture dope comprising: a master batch dope comprising a pigment and a meta-aramid dope, which is obtained by polymerizing m-phenylene diamine (MPD) and isophthaloyl chloride (IPC); and the meta-aramid dope, and provided is an aramid dope-dyed yarn having less color deviation and excellent light fastness due to uniform pigment dispersion.

The present invention relates to a glass having high UV transmittance and high solarization resistance.

Provided is a spectacle lens having antifogging properties, excellent light resistance, and little change in color, the spectacle lens including: a substrate; and a water-absorbent antifogging layer provided as an outermost layer on the substrate, wherein the water-absorbent antifogging layer contains an ultraviolet absorber, and the water-absorbent antifogging layer has spectral characteristics in which a light transmittance at least at 350 to 370 nm is less than 5%, and a wavelength at which the light transmittance is 5% or more is 370 nm or more.

The invention discloses a color conversion apparatus and method, a color conversion table creation apparatus, and a storage medium. The processor converts a signal value of a first color space representing an image into a signal value of a second color space including a YMCK signal corresponding to a usage amount of a pigment of a YMCK color and a special color signal corresponding to a usage amount of a pigment of a special color other than the YMCK color. A special color conversion ratio, which is a ratio at which the signal value of the first color space is converted into the special color signal, is set in accordance with a property of an image printed using the signal value of the second color space.

The utility model relates to cable technical field discloses a wear -resisting waterproof type power cable, including cable core and shielding layer, the number of cable core is three, the inside of shielding layer is located to cable core, the outer surface of cable core is fixedly connected with insulating layer, the inner chamber of shielding layer and be located between adjacent cable core and be provided with rebound rubber pipe, the utility model discloses a cable core, shielding layer and insulating layer can improve the insulation shielding performance of cable, through setting up rebound rubber pipe, can when the cable is extruded, to its buffer protection, avoid causing cable damage, through setting up waterproof layer, can improve the waterproof performance of cable, through setting up function layer, can improve the heat -proof flame -retardant performance of cable, through setting up wear -resisting layer, can improve the wear resistance of cable, through setting up above structure, can improve the wear -resisting waterproof ability and pressure -resistance of cable, to be able to satisfy the special use demand of user.

[Problems] To provided are a reversibly thermochromic composition that shows black during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in light resistance and a microcapsule pigment encapsulating the reversibly thermochromic composition. [Solution] Disclosed is a reversibly thermochromic composition including: (a) a fluoran derivative having a specific structure as an electron-donating color-developing organic compound; (b) a compound having a specific structure as an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition.

The invention discloses a coloring agent and an intermediate thereof, and a preparation method and application thereof, and belongs to the technical field of polymer coloring agents. The preparation method of the intermediate comprises the following steps: carrying out reduced pressure distillation on the polymer polyol and the modified color at 100-105 DEG C until the water content is less than or equal to 0.1%; cooling to 40-60 DEG C, adding part of the solvent, then adding diisocyanate and a catalyst, and reacting for 1.5-3 hours when the internal temperature reaches 80-90 DEG C; cooling to 40-60 DEG C, adding part of the solvent, then adding micromolecular dihydric alcohol to carry out chain extension reaction, and reacting for 2-3 hours when the internal temperature reaches 70-85 DEG C; and adding a terminating agent, adding the residual solvent, and reacting for 0.5-1.5 hours when the internal temperature is 70-80 DEG C. According to the method, the colorant intermediate capable of improving the light resistance and migration resistance of the colorant can be obtained; the colorant prepared from the intermediate and an acrylic monomer is especially suitable for automobile leather.

The present application relates to a kind of naphthalimide derivative polymer dyes, yellow photosensitive resin composition and its application, the structure general formula of dye is as follows: general formula (I);Wherein, n is the positive integer of 1-100, 0 < a ≤ 100, 0 ≤ b < 100, and a+b=100;X1-X4 each is independently selected from any one of hydrogen atom, alkyl, aryl or heteroaryl substituent, Y1-Y5 each is independently selected from any one of hydrogen atom, alkyl, aryl or heteroaryl substituent, Z is selected from any one of oxygen atom, nitrogen atom or sulfur atom;R1-R3 each is independently selected from any one of hydrogen atom, alkyl, alkenyl, ether group, substituted alkyl, aryl or heteroaryl substituent.Compared with prior art, the naphthalimide derivative polymer dyes have high solubility, excellent light resistance and heat resistance, and the yellow photosensitive resin composition prepared based on the dye has high color density.

The invention discloses a polysiloxane anticorrosive coating as well as a preparation method and application thereof. The polysiloxane anticorrosive paint comprises a component A and a component B, the component A and the component B are matched according to the mass ratio of (6-16): 1 during use, the component A comprises epoxy-terminated polysiloxane, polyether epoxy co-modified silicone oil, pigment, filler, a dispersing agent, a defoaming agent, a rheological additive and a solvent, and the component B comprises amino silane and a curing accelerator. The polysiloxane anticorrosive paint can be cured at normal temperature, a formed paint film is large in crosslinking density, good in flexibility, good in corrosion resistance, outstanding in weather resistance and good in shielding property, the polysiloxane anticorrosive paint can be used for metal corrosion prevention in a special corrosive environment, the preparation method is simple, and the polysiloxane anticorrosive paint is suitable for large-scale industrial production and application.

The present invention provides an eyeglass lens having a lens substrate and an inorganic layer, the eyeglass lens further having a metal-containing layer between the lens substrate and the inorganic layer, the metal-containing layer containing a metal selected from one or more of silver and platinum.

An object of the present invention is to provide a compound with a high refractive index and a low extinction coefficient at a wavelength in range of 450 nm to 750 nm in a capping layer to improve light extraction efficiency of an organic electroluminescent device. The present invention was achieved by focusing on the fact that a specific arylamine based compound has excellent thin film stability and durability and is able improve the refractive index by adjusting the molecular structures, and planning molecule, and an organic electroluminescent device having excellent luminous efficiency was obtained by using this compound as a material for constituting a capping layer.

The present invention aims to provide a polycarbonate resin and a manufacturing method for a polycarbonate resin molded product, the polycarbonate resin being excellent in light resistance, transparency, color tone, heat resistance, thermal stability, and mechanical strength. The polycarbonate resin of the present invention contains at least a structural unit derived from a dihydroxy compound having a moiety represented by the following general formula (1) as a partial structure, wherein a case where the moiety represented by the general formula (1) is -CH2-O-H is excluded.

The utility model relates to the technical field of buildings, in particular to a large-diameter composite material pipeline applied to construction, which comprises a high-strength composite tunnel pipe, the pipe piece splicing layer is used for splicing the high-strength composite tunnel pipes; the temperature measuring sensors are arranged in the high-strength composite tunnel pipe at intervals; the high-strength composite tunnel pipe comprises a fireproof heat insulation layer, a first anti-corrosion coating layer, a steel structure layer, a second anti-corrosion coating layer, a first composite plastic protection layer, a mechanical reinforcement protection layer and a second composite plastic protection layer. According to the scheme, by arranging the fireproof heat insulation layer, the situation that a main stress layer in the pipeline is damaged due to high temperature generated by a fire disaster in the tunnel, mechanical performance is reduced, and safe use of the pipeline is endangered is prevented; the first anti-corrosion coating layer and the second anti-corrosion coating layer have the effect of preventing the metal layer from being corroded; the first composite plastic protection layer and the second composite plastic protection layer prevent corrosion of the steel structure layer, and have the advantages of being good in light resistance, appropriate in impact strength, good in acid and alkali resistance and the like.

There are provided a fluorescent compound represented by General Formula (1) and a fluorescently labeled biological substance using the fluorescent compound. In the formula, FL indicates an n-valent phosphor moiety, and n is an integer of 1 or more. R11 to R15 represent a hydrogen atom or a substituent. However, at least one combination of the combination of R11 and R12 or the combination of R12 and R13 is a combination in which one is -SO3-X+ and the other is a substituent. X+ represents a hydrogen ion or a metal ion.

The invention discloses a benzofluorene photochromic compound, the general structural formula of which is shown below: The benzofluorene photochromic compound of the invention has a higher optical density difference, a faster fading decay rate and excellent light resistance, and has excellent development and application prospects.

The invention relates to the technical field of art pigment preparation, and discloses a self-thickening pure acrylic latex for art pigment and a preparation method thereof, the self-thickening pure acrylic latex is composed of a base material, pigment, a cross-linking agent, a regulator, an initiator, an emulsifier and water; the base material is prepared from acrylic resin, alkyd resin, vinyl resin and water-based emulsion resin; the cross-linking agent is formed by mixing N-(2-hydroxyethyl) acrylamide, polymethyl methacrylate, polyvinyl alcohol and C12-14 alkyl glycidyl ether, and the conditioning agent is formed by mixing alpha-methylstyrene dimer and isooctyl thioglycolate. The initiator is prepared from dibenzoyl peroxide, dicumyl peroxide and azodicarbonamide. The emulsifier is composed of alkylbenzene sulfonate, lauryl sodium sulfate and alkyl sodium sulfonate. The adhesive has the characteristics of strong adhesive force, excellent tensile strength, strong stacking force, high yield force, high pseudoplasticity, aging resistance, high light resistance and the like. The formaldehyde is not contained, so that the worry of formaldehyde residue of a user on pure acrylic latex is avoided.

The application provides a kind of phthalocyanine dye containing polymerizable group and a synthesis method and application thereof.The application relates to the field of functional organic dyes, and provides a kind of phthalocyanine dye containing polymerizable group and a synthesis method and application thereof, which introduces halogen atoms, long alkyl chains and polymerizable active groups into phthalocyanine as a parent structure.The active groups introduced can be crosslinked with resins or monomers in a color photoresist component, so that the stability of a thin film can be improved, and the transmittance loss can be reduced.The application overcomes the problem that the light resistance, heat resistance and migration resistance of dye molecules in the prior art are still much poorer than those of pigments.A kind of phthalocyanine dye containing polymerizable group has the structure shown in the following general formula I.

The utility model discloses a pillow inner fused with a pillow inner through an anti-traction cylinder, which comprises an inner body, the inner body comprises a flat pillow area, one side of the flat pillow area is provided with a high pillow area, and the other side of the flat pillow area is provided with a short pillow area; the wrapping layer is used for wrapping the core body, the side face of the wrapping layer is provided with a dismounting assembly used for dismounting the core body, the dismounting assembly comprises a zipper tooth cloth belt arranged on the side face of the wrapping layer, the zipper tooth cloth belt is provided with a zipper head matched with the zipper tooth cloth belt, and the core body is composed of a comfortable layer, an elastic layer, an antibacterial layer, an antistatic layer and a wear-resistant layer. And the comfortable layer is formed by weaving modal fibers. The high pillow area and the short pillow area are symmetrically arranged on the two sides of the flat pillow area, double-face use can be achieved, the core body can be conveniently disassembled and assembled through the zipper tooth cloth belts and the zipper pullers, and therefore the wrapping layer can be conveniently cleaned or maintained, and practicability of the pillow is improved.

The present application relates to the technical field of dyes, in particular to a high-weather-resistance washable macromolecular dye. The high-weather-resistance washable macromolecular dye is prepared by condensation reaction of 1-amino-2-bromo-4-hydroxy-9,10-anthraquinone and polyethylene glycol under alkaline conditions based on the hydrophilicity of polyether chain and the stability of anthraquinone skeleton. The prepared high-weather-resistance washable macromolecular dye has the characteristics of bright color, easy washing, good light resistance and strong oxidation resistance, and has a wide range of applications, especially for educational ink and daily chemical products.

This invention discloses a highly stable, high-brightness, fast-dissolving, dust-free natural blue composition granules, its preparation method, and its applications, belonging to the field of pigment extraction technology. This natural blue composition uses gardenia blue, butterfly pea flower extract, and phycocyanin extract as the ternary coloring components, compounded with buffers (phosphates) and antioxidants (vitamin C and tea polyphenols), and employs an embedding wall material (β-cyclodextrin and sodium caseinate) for emulsification and embedding. Finally, it is produced into composite granules through spray drying and dry granulation processes. The composition granules exhibit a bright and vibrant color, excellent light and heat resistance, rapid dissolution in water without dust generation, and are environmentally friendly. This invention also provides a method for preparing the composition granules and their application as a colorant in food, pharmaceuticals, and cosmetics, offering a safe, stable, and efficient comprehensive solution to replace petroleum-based synthetic blue pigments.

The invention relates to a fluorescent whitening agent as well as a preparation method and application thereof. The structural formula of the fluorescent whitening agent is as shown in formula (1), in the formula (1), n and m are respectively and independently selected from natural numbers greater than or equal to 2, R1 and R2 are respectively and independently selected from-OH,-COOM,-SH or-SO3M, R3, R4, R5 and R6 are respectively and independently selected from-H,-COOM or-SO3M, and M is selected from-H,-Na or-K.