15 results about "Benzoin" patented technology

The invention discloses a flame-retardant corrosion-resistant coating and a preparation method thereof, and relates to the technical field of fluorocarbon resin powder coatings. The flame-retardant corrosion-resistant coating comprises the following raw materials in parts by weight: 15-25 parts of fluorocarbon resin, 40-50 parts of epoxy resin, 3-5 parts of a curing agent, 5-7 parts of a reinforcing agent, 4-6 parts of a corrosion inhibitor, 6-8 parts of filler, 1-2 parts of a flatting agent and 0.5-1 part of benzoin. The preparation method comprises the following steps: reacting phosphonitrilic chloride trimer with p-hydroxybenzaldehyde to generate an intermediate 1, reacting the intermediate 1 with p-aminobenzoic acid to generate an intermediate 2, and reacting the intermediate 2 with 2-heptyl ethylene oxide to generate the reinforcing agent. The flame-retardant corrosion-resistant coating prepared by the invention has excellent mechanical properties, corrosion resistance, aging resistance and flame retardance.

This invention belongs to the field of traditional Chinese medicine technology, specifically relating to a traditional Chinese medicine composition, its preparation method, and its uses. By mass parts, the raw materials of the traditional Chinese medicine composition include: 20-60 parts of Acorus calamus, 30-50 parts of Citrus aurantium, 20-60 parts of Benzoin, and 40-100 parts of Catechu. The traditional Chinese medicine composition of this invention has simple and natural components, and clear efficacy. It can effectively reduce the levels of XOD, SUA, CRE, BUN, TNF-α, IL-6, D-Lac, and DAO in the serum of a mouse model of gout, and significantly reduce the renal index, demonstrating good efficacy in treating hyperuricemia and / or gout.

The embodiment of the invention provides a method for preparing benzil by oxidizing benzoin, which comprises the following steps: S1, adding benzoin and a ferric ion solution into a reaction kettle, stirring and heating for reaction; s2, sampling and layering in the reaction process, observing the color of a water phase, introducing chlorine gas into the reaction kettle when the water phase is changed from brown yellow to green, and introducing the chlorine gas below the liquid level of the reaction liquid; s3, when yellow green gas overflows from tail gas, liquid phase detection is carried out, benzoin reaction is completed, and the reaction is stopped; s4, after standing, separating liquid to obtain a lower-layer water phase and an upper-layer organic phase; wherein the lower-layer water phase is an aqueous solution rich in ferric ions, and the upper-layer organic phase is the product benzil. According to the embodiment of the invention, at least the metabolite of the ferric ions, namely the ferrous ions, is changed into the ferric ions which can be recycled.

Biomass derived benzoin derivatives, and methods of making and using the same, are described. Benzoin derivatives may be used as visible light photoinitiators.

The application discloses a low-temperature curing thin coating powder paint and a preparation method thereof, and belongs to the field of paint preparation. The powder paint comprises preparation raw materials of resin, accelerant, curing agent, dispersant, benzoin, barium sulfate, leveling agent, gloss enhancer and pigment. The preparation raw materials of the resin comprise neopentyl glycol, ethylene glycol, 1,4-cyclohexane dimethanol, terephthalic acid, adipic acid, isophthalic acid, catalyst and antioxidant. The application effectively improves the branching degree and end carboxyl activity of the resin by optimizing the preparation raw materials and the preparation raw material ratio of the resin, reduces the curing temperature of the powder paint while ensuring the reaction activity of the resin, and also obtains excellent weather resistance and mechanical properties. The catalyst and antioxidant are added in the resin preparation stage, which helps to improve the storage stability, solves the problem of uneven dispersion of the powder paint as a whole, and helps to improve the gloss of the coating and the performance of the coating.

The present application relates to the technical field of medicine, in particular to a preparation method and application of Yixin pill. The preparation method comprises the following steps: crushing red ginseng, safflower, Fupian (black Shunpian) and Sanqi, and performing complex enzyme hydrolysis, inactivation, to obtain extract A; crushing toad venom and pearl powder, mixing with ox horn tip powder, performing papain hydrolysis, inactivation, to obtain extract B; combining extract A and extract B, adding beta-glucosidase for hydrolysis, inactivation, filtration, concentrating and drying the filtrate, to obtain extract C; fully dissolving artificial cow-bezoar, artificial musk, borneol and benzoin, adding sodium alginate solution and chitosan solution, stirring, freeze-drying, to obtain component D; mixing extract C and component D, adding starch, stirring, pill-making, drying, activated carbon coating, polishing, to obtain Yixin pill. The Yixin pill prepared by the preparation method has better effects of reducing blood pressure and blood lipid than Yixin pill prepared by the pharmacopoeia method and other comparative examples.

The application discloses a kind of weather-resistant insulating coating and preparation method thereof, belong to functional coating material technical field.The weather-resistant insulating coating includes the following weight parts of component: polyester resin 45-65 parts, curing agent 3-8 parts, leveling agent 0.5-1.5 parts, benzoin degassing agent 0.3-0.8 parts, ultraviolet absorber CoWO4-ZnS 1-5 parts, antioxidant 0.3-1.0 parts, dispersing agent 0.2-0.8 parts, defoaming agent 0.1-0.5 parts, pigment 5-20 parts.By CoWO4 with ZnS composite, wide band ultraviolet absorption and efficient separation of photo-generated carriers are realized, and the weather resistance of coating is significantly improved.

The utility model relates to the technical field, in particular to benzophenone crystallization equipment for medicine synthesis. The benzophenone crystallization equipment for medicine synthesis comprises a support frame, a dissolving bin, a support rod, a first electric heating wire, a second electric heating wire and the like, a dissolving bin is fixedly connected to the supporting frame, a discharging port is formed in the bottom in the dissolving bin, a supporting rod is fixedly connected to the upper side in the dissolving bin, a first electric heating wire is fixedly connected to the lower side of the middle of the supporting rod, and a certain number of second electric heating wires are evenly arranged on the first electric heating wire. When the cooling liquid is injected into the hollow cooling frame body, the motor and the fan blades are used for convection, so that the cooling speed in the cooling frame body is accelerated, and the effect of preventing crystal particles from being too fine or preventing other byproducts from being generated is achieved.

The invention discloses a graphene-containing low-temperature curing anti-corrosion powder coating and a preparation method thereof, and belongs to the technical field of coatings. The coating comprises the following components in parts by weight: 50-70 parts of graphene modified epoxy resin, 20-30 parts of a low-temperature curing agent, 5-6 parts of a flatting agent, 4-6 parts of an accelerant, 5-7 parts of a dispersing agent, 2-3 parts of a preservative, 8-12 parts of nano titanium dioxide, 1-2 parts of benzoin and 0.2-0.8 part of fluorowax. The coating is excellent in corrosion resistance, low in curing temperature, capable of saving a large amount of energy and simple in preparation process, the needed raw materials are evenly mixed according to a certain proportion, tabletted, cooled and rolled into flaky and easily-smashed materials, the flaky and easily-smashed materials are ground into powdery materials through a grinding mill, the powdery materials are screened through a mesh sieve, and the finished product can be obtained. The coating has a wide application prospect in the technical field of anticorrosive coatings.

The application provides an ink, which comprises the following components in percentage by weight: solid material, 15-60%; UV curing resin, 25-50%; dual curing resin, 1-15%; monomer, 0-3%; composite photoinitiator, 5-12%; auxiliary agent, 1-4%; the solid material is anti-counterfeiting material, pigment and filler; the UV curing resin is a mixture of one or more than one of UV resins with absorption peaks matching the absorption spectrum of the composite photoinitiator; the dual curing resin is alicyclic epoxy acrylic resin with dual curing functional groups; the monomer is a mixture of one or more than one of trimethylolpropane triacrylate, tripropylene glycol diacrylate and ethoxypropyl ethylate; the composite photoinitiator is a mixture of one or more than one of acyl phosphine oxide, alpha-hydroxy ketone derivative, alpha-amino ketone derivative, benzoin and derivatives thereof, triaryl sulfonium salt and the like; and the auxiliary agent is a pigment wetting and dispersing auxiliary agent or a substrate wetting auxiliary agent.

The invention discloses a high-weather-resistance flame-retardant powder coating and a preparation method thereof, and belongs to the technical field of powder coatings. The preparation method comprises the following steps: adding epoxy resin, a flame retardant, a modified POSS (Polyhedral Oligomeric Silsesquioxane) material, titanium dioxide, adipic dihydrazide, 2-methylimidazole, a flatting agent and benzoin into a high-speed mixer, stirring at 1200-1500rpm for 5-8min, then extruding and granulating the mixed material through a double-screw extruder at the extrusion temperature of 100-120 DEG C and the screw rotating speed of 200-300rpm, grinding into powder with the particle size of 30-50 microns, and finally, carrying out extrusion granulation on the powder with the particle size of 30-50 microns. The high-weather-resistance flame-retardant powder coating is obtained. The powder coating disclosed by the invention has good weather resistance and flame retardance.

This invention discloses a high-temperature resistant and electrolyte-resistant insulating powder coating and its preparation method, belonging to the field of powder coating technology. The high-temperature resistant and electrolyte-resistant insulating powder coating prepared by this invention comprises, by weight, 304-308 parts epoxy resin, 76-80 parts organosilicon epoxy resin, 100-102 parts curing agent, 0.7-1 parts accelerator, 2-5 parts leveling agent, 2-3 parts defoamer, 0.8-1 parts benzoin, and 10-20 parts composite filler. The organosilicon epoxy resin is obtained by reacting polymethylhydrosiloxane, unsaturated hindered amine, 2-(allyloxy)naphthalene, and unsaturated epoxy monomers. The composite filler is obtained by compounding hexagonal boron nitride with aluminum nitride modified by a silane coupling agent. The high-temperature resistant and electrolyte-resistant insulating powder coating prepared by this invention exhibits good high-temperature resistance, electrolyte resistance, thermal conductivity, and mechanical properties.

A polymer, a patterning composition, a patterned film, a patterning method, and applications thereof are provided. The polymer comprises at least one of repeating units shown in a general formula (I) and at least one of repeating units shown in a general formula (II), and R1 is selected from substituted or unsubstituted C10-C30 aryl, substituted or unsubstituted 8-to 30-membered heteroaryl or benzoin; r2 is an acid labile group; r1'and R2 'are each independently selected from H, halogen, C1-C6 alkyl or C1-C6 haloalkyl, and x and y are each independently an integer from 2 to 200.

The invention relates to the technical field of high polymer materials and coatings, in particular to a flame-retardant solid powder coating with a hydrophilic metal matrix and a preparation method of the flame-retardant solid powder coating. The solid powder coating is prepared from the following components in parts by weight: 15 to 40 parts of flame-retardant tackifying composite powder, 100 parts of epoxy resin, 30 to 35 parts of phenolic curing agent, 20 to 40 parts of titanium dioxide, 0.8 to 2.0 parts of flatting agent and 0.3 to 0.8 part of benzoin. The flame-retardant tackifying composite powder is a ternary grafted copolymer which takes branched polyethyleneimine as a framework and is grafted with a polyethylene glycol chain segment and sulfydryl DOPO silane through click chemistry. The powder is compounded with an epoxy resin system, and the formed coating integrates efficient halogen-free flame retardance, strong chemical tackifying and good flexibility and is suitable for the field of metal surface coating with high requirements for safety and reliability.

This invention provides a benzoin grinding device, including a frame, a first grinding device and a second grinding device mounted on the frame. A container is mounted on the frame, and the material bin includes a side wall and a bottom wall located on one side of the side wall. A telescopic cylinder is mounted on a mounting plate, with one output end of the cylinder connected to the side wall. The bottom wall is fixed to one side of the feed pipe by a bracket. By setting up the frame, the first grinding device and the second grinding device are respectively located on the upper and lower sides of the container. When the bottom wall approaches and blocks the feed port of the side wall, the benzoin is beaten by the grinding head to facilitate the separation of bark fibers from the resin block. Then, the side wall is moved by the telescopic cylinder, moving the feed port away from the bottom wall. Simultaneously, a filter screen on one side of the bottom wall can separate the bark fibers, allowing the resin block material to move through the feed port to the grinding bin for secondary grinding to obtain benzoin powder, thus improving grinding efficiency.