15results 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 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.

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.

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.

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.

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 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.