50results about How to "Improve discoloration problem" patented technology

The invention provides a glittery metallic powder coating and a preparation method thereof, which can solve the problems that the metallic glittery effect is undesirable, and the coat is easy to wear away and distributed unevenly existing in the prior art. The glittery metallic powder coating comprises the following components in percentage by weight: 50 to 70 percent of transparent powder, 25 to 45 percent of dark and light covering power, 2.0 to 5.0 percent of coarse aluminum silver powder, 0.05 to 0.5 percent of fine aluminum silver powder, 0.1 to 1 percent of wax powder, 0.1 to 1 percent of defoaming agent, and 0.05 to 0.5 percent of fluidity improver. The invention also provides a method for preparing the glittery metallic powder coating. The glittery metallic powder coating of the invention has the advantages that: the leveling can be improved; the surface of the coat has a strong metallic glittery effect, and the coat is easy to wear away and uniform in color so as to give people a fashionable and beautiful feeling and show a high-grade decoration effect, therefore, the glittery metallic powder coating is very suitable for high-grade decoration field; and meanwhile, the production cost of the glittery metallic powder coating is not high.

The invention provides a preparation method of color-changing fibers. The preparation method comprises the steps of preparation of color-changing powder and preparation of color-changing fibers applying the powder; the color-changing powder is prepared from polyolefin, photochromic dyes, an antioxidant, an ultraviolet absorber and a sensitizer, all the materials are uniformly mixed and granulatedthrough melting, then pulverized at low temperature and sieved to obtain the color-changing powder with a desired particle size, the powder is blended with a fiber-forming polymer, the color-changingpowder is further sheared and dispersed under the shearing function of a twin screw rod and uniformly distributed in the fiber-forming polymer in the form of solid emulsion droplets to form a core layer material of the color-changing fibers, and the core layer is wrapped with a fiber-forming polymer skin layer containing a functional auxiliary agent to obtain the photochromic fibers of a skin-corestructure. The color-changing fibers prepared by means of the method are suitable for various photochromic dyes, high in applicability and operability and simple in preparation method and have a goodcolor development effect, long service life, excellent mechanical properties and broad application prospects in the field of textiles and garments.

The invention relates to a modified silver-loaded zirconium phosphate powder, which is prepared by the following method: fully mix the silver-loaded zirconium phosphate powder and a crystallization accelerator of 3 to 20 wt% of its weight, and mix it uniformly in a place where the volume content of oxygen is more than 5v%. It is obtained by firing at 800-1100°C for 1-5 hours in an oxygen atmosphere. Described crystallization accelerator is MgO or ZnO or can generate the compound of this oxide compound when roasting, and B 2 o 3 or a mixture of compounds capable of forming this oxide upon firing, B 2 o 3 The molar ratio to MgO or ZnO is 0-0.3. The modified zirconium phosphate silver-loaded powder can be stored in the air for a long time, and does not change color when mixed with resin, which fundamentally improves the problem of discoloration of the zirconium phosphate silver-loaded powder when it is used in industries such as textiles, plastics, and papermaking; and the present invention The preparation method provided has simple procedures, easy industrial production, no by-products and no pollution to the environment. At present, it has been applied in Shanghai, Hunan and other enterprises, and the product quality is excellent.

The invention discloses a rust remover and a preparation method thereof. The rust remover is prepared from the following components in percentage by mass: 60 to 80 percent of organic acid, 19 to 39 percent of inorganic acid and 0.8 to 3 percent of corrosion inhibitor, wherein the organic acid is one or more than two kinds of tartaric acid, citric acid, oxalic acid and trichloroacetic acid; the inorganic acid is one or more than two kinds of sulfamic acid, phosphorous acid and ammonium acid fluoride; and the corrosion inhibitor is benzotrizaole or / and sodium dihydrogen phosphate. According to the rust remover disclosed by the invention, the use of hydrochloric acid or sulfuric acid is completely avoided; no acid mist during rust removal is generated, the corrosion to equipment in a workshop is avoided and the labor environment is improved; meanwhile, the corrosion inhibitor is weaker in acidity, the over corrosion to workpieces is avoided and the condition that the skin of an operator is severely corroded is prevented; in addition, after a certain amount of workpieces are treated, the rust removing efficiency is reduced; and by continuously adding the rust remover disclosed by the invention, the rust removing efficiency can be restored, i.e., a rust removing bath solution disclosed by the invention can be conveniently and repeatedly used.

The invention belongs to the field of powder coating and particularly relates to power coating with an effect of color changing along with an angle. The powder coating with the effect of color changing along with the angle comprises epoxy resin, an epoxy resin particle system corresponding to a matched curing agent A and color changing pigments and a fluorocarbon resin particle system with fluorocarbon resin and a matched curing agent B. The parts by weight ratio of the epoxy resin particle system and the fluorocarbon resin particle system is 7-3:3-7. According to the powder coating, the color changing pigments are adhered in an epoxy resin layer successfully through bonding technology. In the process of curing, the color changing pigments are sunk into the coating bottom instead of floating to the surface of the coating along with the epoxy resin. A transparent fluorocarbon resin layer floating to the upper layer has the function of protecting the color changing pigments so that the color changing pigments are antioxidative. A structure of the color changing pigments is not damaged in the whole process and the color changing effect is thoroughly played.

The invention belongs to the field of metal powder coatings, and in particular relates to a metal powder coating for enhancing a flash effect. The metal powder coating for enhancing the flash effect comprises an epoxy resin particle system containing epoxy resin, a correspondingly adaptive curing agent A and flash metal pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B. The weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal powder coating for enhancing the flash effect disclosed by the invention, thick aluminium-silver powder is successively bonded into an epoxy resin layer by using a binding process, so that the thick aluminium-silver powder is deposited in the bottom layer of a coating together with the epoxy resin layer in the curing process and cannot float in the surface layer of the coating; and a transparent fluorocarbon resin layer floating to the upper layer plays a role of protecting oxidative resistance of flash metal powder.

The invention provides a color printing lamination metal plate and a preparation method thereof. The color printing lamination metal plate comprises a metal substrate and a color film adhered to at least one side surface of the metal substrate in an adhesive-free way; the color film is a relief block film; and the one side of the color film adhered to the metal substrate has color patterns. The color printing lamination metal plate provided by the invention contains no adhesive, and the color patterns of the printing film are sealed between the film and the metal substrate, so as to significantly improve the safety quality of the color printing metal plate; and the preparation method of the color printing lamination metal plate does not cause tensile deformation of the color printing patterns in a lamination process, and no adhesive is used to adhere the color printing film to the metal substrate.

The invention discloses a hybrid tetra-aryl ethylene compound. The structure of the hybrid tetra-aryl ethylene compound is as shown in the specification, wherein, Ar1 is phenyl or hexahydric heteroaryl; Ar2 and Ar3 are phenyl, hexahydric heteroaryl or quinary heteroaryl independently and respectively; X is nitrogen, oxygen, sulphur or silicon; R1, R2 and R3 are hydrogen, fluorine, chorine, bromine, iodine, methyl, ethyl, propyl, isopropyl, normal-butyl, isobutyl, tertiary butyl, methoxy, ethyoxyl, amino, hydroxyl, carboxyl, nitryl, sulfonic acid group, trifluoromethyl, phenyl, benzyl, benzoyl, para-bromophenyl, para-fluorophenyl, thiophene, pyridine, or crown ether. The invention further discloses a preparation method of the hybrid tetra-aryl ethylene compound and an application thereof, and discloses a polymer of the hybrid tetra-aryl ethylene compound, a preparation method and an application thereof. The hybrid tetra-aryl ethylene compound is unique in structure performance; the compound has good photochromic performance as well as excellent aggregation-induced emission performance.

The modified silver-carrying zirconium phosphate powder is prepared through the process of mixing silver-carrying zirconium phosphate powder with crystallization promoter in the amount of 3-20 wt% of the zirconium phosphate powder, and roasting at 800-1100 deg.c inside atmosphere with oxygen content over 5 vol% for 1-5 hr. The crystallization promoter is mixture of MgO or ZnO or compound capable of producing MgO or ZnO in roasting and B2O3 or compound capable of producing B2O3 in roasting with molar ratio of B2O3 to MgO or ZnO 0-0.3. The modified silver-carrying zirconium phosphate powder may be maintained in the air for long time and has no color change during mixing with resin.

The invention relates to weather-resistant paint for external walls and a preparation method. The weather-resistant paint for the external walls comprises components in parts by weight as follows: 5-10 parts of cellulose, 6-15 parts of wollastonite powder, 15-25 parts of calcined kaolin, 12-18 parts of a styrene-acrylic emulsion, 3-5 parts of a dispersing agent, 1-3 parts of an anti-settling agent, 2-5 parts of a mildew preventive agent, 0.5-1.5 parts of a defoaming agent and 25-35 parts of water. The weather resistance of the weather-resistant paint for the external walls is remarkably improved. In comparison with the prior art, the water resistance, the alkali resistance, the artificial weather aging resistance, the chalking resistance, the discoloration resistance and the stain resistance of the paint and the temperature fluctuation resistance of coating are remarkably improved.

The invention discloses an oral care composition, belonging to the field of oral care. The oral care composition is prepared from particles and an orally-acceptable carrier, wherein polyphenol compounds are encapsulated in the particles. According to the oral care composition, the polyphenol compounds are encapsulated in an embedding form, so that the problems that in the existing oral care compositions, the polyphenol compounds cannot well exert an antioxidant function and easily enable the oral care composition to change color due to being easily oxidized can be solved.

An electronic device includes a wet-label device. The wet-label device includes a moisture introduction portion formed in a case of the electronic device, at least one label portions provided in a position adjacent to the moisture introduction portion, and at least one rib portions provided in a position adjacent to the at least one label portions, in which the at least one rib portions guide or block introduction of the moisture to the at least one label portions according to wetness or submersion of the electronic device.

The improved color changing soft tube lamp structure includes one opaque core line, LED's inside the core line, one translucent light scattering body in the same length as the core line and over the LED's, and one coating layer outside the core line and integrated with the light scattering body. The LED's are grouped into units set on a fixing box and inside holes in the core line and connected serially, and each unit includes three LED's, one red, one green and one blue. The present invention has the lighting effect similar to that of neon lamp and can change colors and mix colors to show flowery and colorful patterns.

The invention relates to the technical field of learning articles, and discloses a convenient-to-carry and color-changeable mark pen. The mark pen comprises a rotating block, wherein a hanging hole isformed in the front surface of the rotating block. According to the convenient-to-carry and color-changeable mark pen, the rotating block and a screw rod are matched for use, the rotating block drives the screw rod to rotate, and the screw rod drives a moving tube on the outer side to move up and down in a circular tube, so that a pen point and a mounting column are driven to contract in the circular tube; when the mark pen needs to be used for writing, the hand holds the circular tube and rotates the rotating block forward, and the pen point can extend out of the inside of the circular tube;otherwise, the hand rotates the rotating block reversely, the pen point can retract to the inside of the circular tube, the pen point is protected inside the circular tube, and the mark pen cannot bedamaged even if the pen falls off; a magnetic ring and an iron ring are matched for use, and the magnetic force of the magnetic ring is utilized to tightly connect a cap and the circular tube; and the low-falling floor ink is absorbed through the use of a sponge, the outer leakage of the low-falling floor ink is prevented, and the purpose of the mark pen being convenient to carry and use is achieved.

To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins. This invention provides a perchlorate solution of improved handlablity and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60 % by weight of perchlorate, 5 to 50 % by weight of water-soluble organic solvent and 20 to 94 % by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin: M(O)a nSiO2mH2O (I) in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3 / 2 where M is aluminum, n is from 1 to 5, and m is any positive integer.

The present invention relates to a composition comprising reclaimed oil and a liquid anti-aging agent. The liquid anti-aging agent comprises (a) a hindered phenolic primary antioxidant; (b) a phosphite ester auxiliary antioxidant; and (c) a hindered amine light stabilizer. The invention provides the anti-aging agent product for stabilizing reclaimed oil for the first time, and the product is a liquid formula, is convenient to produce and use, and can effectively improve the discoloration problem in the reclaimed oil storage and transportation process.

The present invention relates to a Chinese patent medicine capsule preparation, which has the advantages of short treatment cycle and low recurrence rate in treating psoriasis, vitligo, dermatoses, black and white hyperpigmented macule, ichthyosis, tinea manuum, etc., and the biggest characteristic of the Chinese patent medicine capsule preparation is as follows: the Chinese patent medicine capsule preparation can treat a large variety of dermatoses and has no any side effect. The Chinese patent medicine capsule preparation is prepared with twelve Chinese medicine components including cicada shell, lightyellow sophora root, etc., and the functions of the Chinese patent medicine capsule preparation include dehumidifying and sterilizing, eliminating blood stasis and promoting tissue regeneration, dispersing pathogenic wind and detoxifiying and enhancing immunity.

The invention belongs to the field of metal powder coatings, and in particular relates to a metal powder coating for enhancing a flash effect. The metal powder coating for enhancing the flash effect comprises an epoxy resin particle system containing epoxy resin, a correspondingly adaptive curing agent A and flash metal pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B. The weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal powder coating for enhancing the flash effect disclosed by the invention, thick aluminium-silver powder is successively bonded into an epoxy resin layer by using a binding process, so that the thick aluminium-silver powder is deposited in the bottom layer of a coating together with the epoxy resin layer in the curing process and cannot float in the surface layer of the coating; and a transparent fluorocarbon resin layer floating to the upper layer plays a role of protecting oxidative resistance of flash metal powder.

The purpose of the present invention is to provide an antiviral vinyl chloride resin composition having excellent antiviral properties, an antiviral sheet, an antiviral wallpaper, and an interior sheet.

The invention provides a color-changing powder preparation method, wherein the color-changing powder comprises polyolefin, a photochromic dye, an antioxidant, an ultraviolet absorbent and a sensitizer. The preparation method comprises: uniformly mixing the substances in a melting manner, carrying out low temperature crushing, and screening to obtain the required color-changing powder. According tothe invention, the prepared color-changing powder is suitable for various photochromic dyes, has characteristics of wide applicability, simple preparation method, high operability, good color changing and developing effect, long service life and broad market prospect, and can be used in various fields.

The present invention aims to provide a method for improving discoloration in pulp, characterized by a versatile technique adaptable to any type of pulp, a time-saving process, a great and permanent anti-fading effect, environmental friendliness and other properties, as well as a pulp with greatly improved discoloration obtained by said method for improving discoloration. Discoloration in pulp can be greatly improved by adding one or more additives selected from the group consisting of reducing agents, peroxides and hydrogen-donating organic compounds to one of bleached mechanical pulp, semi-chemical pulps, chemical pulp and deinked pulps or a mixture of two or more of them, and irradiating it with UV and / or visible light.

The present invention relates to a composition comprising hydrofined base oil and an anti-aging agent. The anti-aging agent comprises: (a) a hindered phenolic main antioxidant; (b) a phosphite ester auxiliary antioxidant; (c) an ultraviolet absorber; wherein the component (c) is preferably a benzotriazole ultraviolet light absorber or a benzophenone ultraviolet light absorber. The anti-aging agentis applied to the field of hydrofined base oil for the first time, has a good synergistic effect, can effectively solve the problems of thermal aging and illumination discoloration of hydrogenated base oil, and ensures the stability of the hydrofined base oil in the processing and using processes.

The invention belongs to a method for stabilizing furfurylglycidylether or ester- carbon dioxide copolymer. The method for blending solution and antioxidant is simple, and can effectively improve the crosslinking and color-changing problems of the furfurylglycidylether or ester- carbon dioxide copolymer under the room temperature. When the antioxidant 264, 246 or 1010 is used alone and the dosage is 3 percent by weight, the copolymer does not produce gel and have color change in the air and under 40 DEG C after 168 hours; and when 1010 and 626 are used together and the dosage is 2 percent by weight, the same effect still can be obtained.

The invention discloses a triazolyl silane coupling agent as well as a preparation method and application thereof. The triazolyl silane coupling agent has a structural formula shown as follows: G1-R1-G2. R1 is an organic group as shown in a general formula (5) or (6), and in the general formula (6), X is a structure as shown in the general formula (5); wherein R4 is a hydrogen atom or a hydrocarbon group with 1-10 carbon atoms; r5 is an organic group having 4 to 40 carbon atoms; g1 and G2 are respectively and independently selected from one of structural formulas shown in general formulas (1)-(4), and R2 and R2'are independently selected from at least one of R3O, hydrogen atoms and alkyl with the carbon atom number of 1-10. The triazolyl silane coupling agent can significantly enhance the adhesiveness of heat-resistant resins such as polyimide and polybenzoxazole with a copper or copper alloy substrate after high-temperature thermocuring, and can significantly improve the discoloration problem of the copper or copper alloy substrate.

Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.

The invention relates to a cultivation method of colorful white oaks. The method includes: seed selection, stock cultivation, grafting, planting, field management and shaping pruning. The colorful white oaks cultivated by the method is high in poor soil tolerance, easy to manage, fast in growth, good in leaf color change, and good in greening and beautification effect.

The invention discloses a positive electrode, a preparation method thereof and a lithium ion battery. The positive electrode comprises a current collector and a positive electrode material layer arranged on the surface of at least one side of the current collector, a positive electrode material in the positive electrode material layer comprises a manganese-containing positive electrode material, and a complexing agent is arranged in the positive electrode material layer and / or on the surface of one side far away from the current collector. According to the positive electrode disclosed by the invention, the complexing agent is arranged in the positive electrode material layer and / or on the surface of one side, far away from the current collector, of the positive electrode material layer, so that the battery prepared from the positive electrode material layer can effectively capture dissolved manganese ions in a charging and discharging process, and the cycle performance of the battery is improved.

The invention relates to a UVC-resistant ASA resin composition and a preparation method thereof. The UVC-resistant ASA resin composition comprises the following components in parts by weight: 40-74 parts of SAN resin, 20-40 parts of ASA rubber powder, 5-15 parts of PMMA resin and 1-5 parts of an ultraviolet absorbent. The UVC-resistant ASA resin composition is prepared by the following steps: adding the components into a high-speed mixer according to the weight percentage, fully mixing, putting into a screw machine, melting, extruding, cooling and granulating. Compared with the prior art, the UVC-resistant resin composition developed by the invention has the advantages that the color difference is less than 3 and the impact retention rate reaches 90% or more after UVC ultraviolet continuous irradiation (250nm, 20W continuous irradiation for 180 days), and the UVC-resistant resin composition meets the use scene requirements of most UVC.

The invention discloses a glass outer protective film for cold environments, and belongs to the technical field of building glass. The glass outer protective film for the cold environments comprises afilm bonding glue layer, an elastic reset clamping layer is arranged on the right side of the film bonding glue layer, the film bonding glue layer can be adhered onto outer glass for the cold environments, influence of glass internal stress on glass is reduced when inner and outer temperature difference is large, breaking and cracking of the glass are decreased under large inner and outer temperature difference, four corners of the glass are adhered and fixed, so that the glass is naturally in an internal tension state, the glass has inward stress, the inward stress is within a controllable range, outer stress of the glass is offset after deformation of the outer glass caused by temperature difference, influence of the inner temperature on the glass stress is blocked, inner and outer temperature difference of the outer glass is reduced, the outer glass changes colors and reflects light after being irradiates to be heated, and increasing of outer stress caused by high temperature is decreased.