36results about How to "UV stabilized" patented technology

The disclosure relates to a glass window for optical systems, in particular for LiDAR systems, in which the glass window has a curved form. For length scales between 0.1 mm and 15 mm, at least 50% of the area of the glass window has a geometrical slope error SE_G for which the following is true: SE_G<−2.3·10⁻⁶·2·R₀[1/mm]+7.3·10⁻⁴.

The invention relates to a polymethyl methacrylate composite coating and a preparation method thereof. The raw material formula of the composite coating comprises the following components in parts by weight: 10-35 parts of polymethyl methacrylate, 30-60 parts of unsaturated polyurethane resin, 1-5 parts of crosslinking agent, 1-10 parts of oxidizing agent, 0.5-2 parts of reducing agent capsules, 0.1-2 parts of oxygen scavenger, 0.1-1 part of dewatering agent and 10-30 parts of inorganic powder, wherein the reducing agent capsules are composed of a reducing agent core material and a hydrophilic colloid capsule wall material which is used for covering the surface of the core material and breaks when encountering water. The composite coating provided by the invention is triggered to polymerize and form a film through an oxidation reduction triggering system and can solidify at a normal temperature; the oxidizing agent and the reducing agent can coexist through the capsulation of the reducing agent under the drying condition; further the single-component packaging is realized; and the trouble that the double-component coating needs to be mixed and prepared on the scene during construction is avoided.

The present invention discloses a positive dielectric liquid crystal composition. The liquid crystal composition comprises a component A composed of one or more liquid crystal compounds represented bya general formula I in the description, a component B composed of one or more liquid crystal compounds represented by a general formula II in the description, a component C composed of one or more liquid crystal compounds represented by a general formula III in the description, and an additive component D composed of one or more compounds represented by a general formula S-1 in the description. The composition provided by the present invention does not change under the conditions of high temperature and ultraviolet radiation, thereby improving the quality of liquid crystals; and the composition is applicable to active matrix electro-optical elements and liquid crystal displays, and can be used for TFT-LCD used under civil and special harsh conditions.

The shade cover assembly includes a textile contoured to the shape and size of the bow of the vessel to which applied, tautly stretched across above the bow secured by a plurality of quick release fastening devices along the peripheral reinforced edges to the port and starboard the railing/stanchion system on the bow. An insulating air space between the shade cover and the bow surface is present at all times which may require spacers to maintain. For boats with through the windshield access to the bow a quick release fastening system is featured at the aft edge of the shade cover.

The invention discloses a raw lacquer and a preparation method thereof, belonging to the field of coating materials. The raw lacquer is prepared from the following raw materials: modified raw lacquer, an emusifier, epoxy chloropropane, dispersion liquid and a catalyst. The preparation method comprises the following steps: taking the raw materials according to parts by weight, then adding the modified raw lacquer, the epoxy chloropropane and the catalyst in the raw materials into a reaction still for reacting, then cooling to room temperature, adding the emusifier and the dispersion liquid in the raw materials, stirring, mixing, and discharging to obtain the raw lacquer. The raw lacquer has the beneficial effects that the raw lacquer has better ultraviolet resistance, a raw lacquer film has higher glossiness and pencil hardness, and the raw lacquer is worth popularizing and applying.

The invention discloses high-performance nitrogen-containing phenolic resin. The nitrogen-containing phenolic resin is prepared from a component A, a component B, a component C, a catalyzer, a thickening agent, a lubricating agent, a curing accelerator and a cutting agent. The invention further relates to a preparation method of the high-performance nitrogen-containing phenolic resin. The preparation method is simple and easy to implement, safe and environmentally friendly, and the prepared nitrogen-containing phenolic resin has excellent fire resistance, high thermal stability, and good mechanical performance and electrical performance.

The present invention relates to a high pressure discharge lamp which is provided with a ceramic discharge vessel that is accommodated in an outer bulb, wherein the outer bulb is surrounded by a second outer bulb which is close to the outer bulb for fragment protection. The second outer bulb is fixed in a horizontal direction of a lamp holder.

The invention discloses a self-cleaning amphiphobic coating for degrading NO and a preparation method of the self-cleaning amphiphobic coating, and belongs to the field of photocatalytic degradation of NO. According to the preparation method of the self-cleaning amphiphobic coating for degrading NO, the amphiphobic coating capable of being used in a large area is prepared by adopting a simple spraying method, and aiming at the problem that the robustness of the amphiphobic coating is poor, epoxy resin with high bonding strength is introduced to improve the durability of the amphiphobic coating; the titanium dioxide nanotube has excellent photocatalytic activity and adsorption effect, and the titanium dioxide nanotube is introduced, so that the coating has excellent performance of photocatalytic degradation of NO; the one-dimensional structure of the titanium dioxide nanotube is beneficial to the construction of a nano hierarchical structure on the surface of the coating and the formation of a super-amphiphobic surface; and in order to solve the problem of ultraviolet stability of the coating, nano silicon dioxide is introduced, so that the situation that the epoxy resin is directly degraded by strong oxidizing groups generated by nano titanium dioxide nanotubes is avoided, the anchoring effect of nano titanium dioxide is improved, and the ultraviolet stability of the coating is greatly improved.

The invention discloses an evaporator and an anesthesia machine with the same. The evaporator comprises a body, an evaporator valve seat and a liquid level display unit. An evaporation chamber is arranged in the body and provided with a first air inlet and a first air outlet. The body is provided with a second air inlet communicated with the first air inlet of the evaporation chamber and a second air outlet communicated with the first air outlet of the evaporation chamber. The evaporator valve seat is mounted on the body. The liquid level display unit is a resin tube and arranged on the body. According to the evaporator, the liquid display unit uses the resin tube having the characteristics of low thermal conductivity, high light transmittance, high impact resistance, light weight, ultraviolet ray resistance, stable optical property and the like, so that the liquid level display unit of the evaporator is high in fogging resistance, high in transparency, unbreakable and wide in anti-solvent range when compared with a liquid level display unit using a glass tube.

The invention provides a high dyeability EVA color master batch special for shoes. The high dyeability EVA color master batch comprises, by weight, 30-70 parts of an EVA carrier resin, 5-20 parts of apigment, 5-10 parts of sucrose fatty acid ester, 3-7 parts of EVA wax, 3-7 parts of polyethylene wax, 4-8 parts of octadecanamide, 2-4 parts of white oil, 3-7 parts of oleamide, 3-7 parts of a coupling agent, 7-12 parts of a maleic anhydride graft compatilizer, 5-9 parts of an antioxidant, 2-6 parts of a light stabilizer and 10-40 parts of a filler. The high dyeability EVA color master batch special for shoes is prepared from the above raw materials through processes, has the advantages of no flow pattern, no color point, small color difference, good light aging resistance, strong resistanceto thermo-oxidative aging and good dispersibility and solves the existing EVA master batch problems of uneven color and large color difference in coloring.

The invention provides a synthesis technology of halogen-free high-poly type phosphate flame retardant, which comprises the steps of: carrying out reaction in a high pressure reaction kettle to generate intermediate by taking phosphorus oxychloride, ammonia water, phosphorus pentoxide, pentaerythritol and melamine as raw materials; 2) carrying out a reaction on the intermediate and diammonium hydrogen phosphate, polyvinyl alcohol, urea as well as 201type polyether polyol in the presence of an initiator; and finally, obtaining the product. The technology can be used for synthesizing high-poly type phosphate under the conditions of high temperature and high pressure; compared with the traditional high-temperature atmospheric technology, the synthesis technology improves the yield by more than 50%; the synthesis technology is simple in technology and convenient in control of the reaction process; and the obtained halogen-free high-poly type phosphate flame retardant is non-toxic, has the smoke suppression function, and is non-corroding, stable for heat and ultraviolet ray and good in flame retardant effect, thus being mainly used as high polymer material flame retardant.

This disclosure concerns improved mulch holding, mulch preserving, and/or mulch pigmenting sprayable latex, and its application to preserving the appearance of decorative mulch, either by fixing decorative mulch in place more effectively than prior mulch-holding latex, by protecting the mulch from biological or UV degradation, by pigmenting or staining the mulch, or some combination of two or more of these characteristics.

The invention discloses a metal anticorrosive paint and a preparation method thereof. The metal anticorrosive paint is prepared from the following components in parts by mass: 10 to 15 parts of butylmethacrylate; 4-5 parts of cyclohexanone, 3-4 parts of titanium dioxide, 1-2 parts of an epoxy resin curing agent; 3 to 6 parts of propylene glycol phenyl ether; 10 to 15 parts of pentaerythritol; 8 to 15 parts of a pigment and filler; 5-6 parts of polyether silicone oil, 1-2 parts of polytetrafluoroethylene wax, 1-2 parts of a titanate coupling agent, 4-6 parts of a leveling agent, 1-2 parts of zinc phosphate, 15-25 parts of butyl acetate, 6-12 parts of graphite, 8-10 parts of hydroxypropyl methyl cellulose, 2-3 parts of xylene, 35-50 parts of a thermosetting high-salt resin and 15-25 parts of novolac epoxy resin and chlorinated polyether resin. The thermosetting high-salt resin has the characteristics of curing crosslinking and infusibility of a coating after crosslinking, an infusible hard-texture coating can be formed after a curing agent with a crosslinking reaction is added and heated, and the coating prepared from the thermosetting high-salt resin cannot be softened like a conventional thermoplastic coating under the condition of high temperature, and is good in stability.

The invention provides an antibacterial, mildew-proof and deodorizing composite film, which comprises a substrate, on which a layer of antibacterial film is compounded; the antibacterial film is composed of antibacterial agent and plastic, and the content of antibacterial agent is 0.1-10wt%; In parts by weight, the antibacterial agent consists of 1-10 parts of salicylanilide and 1-10 parts of imidazole. After the antimicrobial agent and plastic particles are evenly stirred, they are fed into a screw extruder and melted and extruded; the melt is cast into a film, and then hot pressed and pasted on the substrate to form a composite film. The composite membrane provided by the invention is safe and reliable, and the antibacterial agent can be used for acute oral LD ₅₀ >10000mg/kg (rat); strong antibacterial properties, especially in high humidity environment; stable performance, very stable in acid-base solution and ultraviolet rays, non-corrosive container, slightly soluble in water, medicine Long-lasting effect; transparency has no effect.

The invention relates to automobile part manufacturing, in particular to a weather-proof polyformaldehyde turbine for an automobile windshield wiper motor and a preparation method of the weather-proof polyformaldehyde turbine. The invention relates to a polyformaldehyde turbine for a weather-resistant automobile windshield wiper motor. The polyformaldehyde turbine comprises the following components in parts by mass: 100 parts of a polyformaldehyde raw material, 2-4 parts of a stabilizer, 1.5-2.5 parts of an antioxidant, 2-4 parts of an emulsifier, 0.15 part of a dispersion lubricant, 1-2 parts of an ultraviolet light absorber and 2-5 parts of metal oxide. According to the invention, the polyformaldehyde raw material is blended with other micromolecular modifiers to modify polyformaldehyde, so that the polyformaldehyde has the advantages of ultraviolet light resistance stability, heat sample resistance stability and hot water resistance stability, and the durability of the product is improved.

The invention relates to a technology for improving the quality of lubricant base oil. The technology includes the following steps that refined oil is added into a white clay pot and heated to 90 DEG C-100 DEG C, white clay is added, the mixture is stirred for 25 min-35 min, the refined oil passes through a degassing tower and then is heated to 115 DEG C-125 DEG C, a stabilizer with the mass fraction of 0.3%-0.5% is added into the refined oil, and the mixture is stirred for 15 min-25 min and then filtered to obtain the lubricant base oil. According to the technology for improving the quality of the lubricant base oil, by adding the stabilizer in the production process, the defects of the lubricant base oil are overcome, the quality of the lubricant base oil is improved, and thus the product has the advantages of being stable in aging resistance and ultraviolet resistance, stable in color, pure in smell and the like.

Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 20 to 65 weight percent of a propylene polymer having from 10-60% crystallinity, 30-60 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

The invention discloses a construction technology for a water draining pipe of a high-speed rail bridge. The construction technology comprises the following steps that (1) a mould corresponding to a reserved hole of the water draining pipe is installed on a formwork fixed by combining precast beams; (2) the hole is buried and formed by using a PVC pipe, it is ensured that the pre-buried hole is vertical, concrete is poured, and the mould of the reserved hole of the water draining pipe is removed; (3) the water draining pipe is placed in the hole and fixedly installed, and sealing and plugging are conducted on the periphery of the pipe wall of the water draining pipe and an installing trough by using grouting materials; and (4) a building sealant is painted on the periphery of an upper opening of the water draining pipe. The construction technology for the water draining pipe of the high-speed rail bridge is easy and convenient to operate and convenient and quick to install, the pouring cycle of the precast beams is shortened, smooth water draining and driving safety are ensured, and the service life is prolonged.