38results about How to "Solve easy discoloration" patented technology

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

The invention mainly aims at providing a preparation process of silver/chitosan composite antimicrobial agents. In order to realize the goal of the invention, the preparation process has the technical scheme that the preparation process of silver/chitosan composite antimicrobial agents comprises the steps that: 1, carboxymethyl chitosan is prepared from chloroacetic acid, sodium hydroxide and chitosan through reaction; and 2, the carboxymethyl chitosan prepared through the reaction is compounded with silver ions to obtain the silver/chitosan composite antimicrobial agents. In order to improve the antimicrobial performance of the chitosan, the chitosan is compounded with the silver according to the processing method, the problem that the color of the silver is easy to change can be solved, and simultaneously, the antimicrobial performance of the chitosan can also be greatly improved.

Disclosed is ketorolac tromethamine, which is a pyrrole acid derivative developed by the Syntex company in the U.S. The invention can effectively inhibit prostaglandin (PG) from synthesizing with functions of analgesia, anti-inflammation, antipyresis and inhibiting the platelets from aggregating. The invention provides a preparation method of ketorolac tromethamine injection, which well improves the stability and the clarity of the preparation with stable process.

The invention provides a phosphorus-based flame-retardant glass fiber reinforced PBT composite material, which comprises, by weight, 35-60% of PBT, 8-26% of glass fiber, 3-8% of a filling material, 6-12% of a phosphorus-based flame retardant, 3-8% of a flame-retardant synergist, 2-6% of aluminum hydroxide, 2-5% of diethylene glycol di m-methyl benzoate, 0.5-2% of a coupling agent, 0.5-1% of an inorganic antibacterial agent, 0.6-1.2% of an antioxidant, and 1-3% of other processing aids, wherein the intrinsic viscosity of the PBT is 0.7-1.2 dl/g, and the glass fiber is an alkali-free glass fiberwith a monofilament diameter of 7-18 [mu]m. According to the present invention, the prepared PBT composite material has advantages of good flame retarding effect, excellent mechanical property, excellent electrical property, excellent antibacterial property and excellent processing property.

The invention discloses a method for compressing and compacting wood materials, and belongs to the field of wood material production and preparation. According to the method for compressing and compacting the wood materials, the wood materials are subjected to hot-pressing and setting treatment under the vacuum condition, and the processed wood materials are large in specific modulus, and the technical problems that, in an existing wood material compressing and compacting technology, the hot-pressing and setting time of is long, manufacturing efficiency is low, the color changes, and the sizeis not stable are solved; and the wood materials are subjected to compressing and compacting manufacture under the vacuum condition, so that bonding strength of the wood materials laminated with glueis also improved.

The present invention discloses a processing method of Zijuan flower tea, belongs to the technical field of tea leaf processing, and more particularly relates to a processing technology of commonly processing Zijuan tea and flower raw materials and preserving color and luster. Firstly, processes from the Zijuan tea raw materials to baking/sun-drying of the tea are conducted, a strip tidying process is added between kneading and drying, the baking is subjected to a two-stage temperature controlling and time controlling treatment, and the sun-drying uses a sunlight to dry the tea into a water content of 13-15 wt%; then the Zijuan baking/sun-drying tea is mixed with fresh magnolia flowers and fresh jasmine flowers, the mixture is subjected to a second temperature controlling and time controlling scenting processing; the scented materials are subjected to the temperature controlling and water controlling, and the treated materials are dried into semi-finished products; and the semi-finished products are processed into the corresponding Zijuan flower tea finished products. The technology is simple and easy to realize an industrial operation, and can solve the problem that the common processing of the Zijuan tea and flower raw materials is easy for color changing, and the prepared finished products are relatively much in anthocyanin contents and stable in soup color after a soaking.

The present invention provides recipe and production process of olive powder. The recipe includes olive, sodium ascorbate, sodium hexametaphosphate, beta-cyclodextrin, maltodextrin, gelatin, sodium carboxymethyl cellulose, cane sugar, sodium stearate, soft phospholipid, Acesulfame potassium and glycyrrhizin. The production process includes the steps of sorting olive, washing, scalding, cooling, stoning, crushing, freezing, defrosting, squeezing, filtering, concentrating, concentrating, mixing with other materials, drying and sterilizing. The produce process has well preservation of the beneficial components in fresh olive, and the olive powder has wide application foreground in health food and medicine.

The invention belongs to the technical field of medicine and particularly relates to a special omeprazole solvent for injection as well as a preparation method thereof. The special omeprazole solventfor injection comprises the following raw materials: polyethylene glycol 400, citric acid, sodium hydroxide and water for injection. The special omeprazole solvent for injection solves the problem that the omeprazole solution prepared by the conventional method is low in stability, is liable to change color and is liable to degrade. By the preparation method, the industrialized production requirement is met, and large-scale industrialized production can be realized.

The invention relates to the field of daily necessities, and provides a silicone oil-free anti-dandruff shampoo composition and a preparation method thereof. The invention relates to a silicone oil-free anti-dandruff shampoo composition which comprises the following components in parts by weight: 8-40 parts of a surfactant and 5.2-25 parts of a functional component, 5.2-25 parts of the functional components comprise 0.2-5 parts of a pseudoalteromonas fermentation product, 1-10 parts of a peony seed oil micro-emulsion and 1-10 parts of an artemisia apiacea extract micro-emulsion, the peony seed oil content in the peony seed oil micro-emulsion is 5-20 wt%, and the artemisia apiacea extract content in the artemisia apiacea extract micro-emulsion is 5-20 wt%. The preparation method comprises the step of uniformly mixing the components. According to the shampoo composition, the defects of a traditional anti-dandruff agent are overcome through the pseudoalteromonas fermentation product extract, the natural peony seed oil and the sweet wormwood herb extract serve as natural substitutes of silicone oil, the shampoo composition is environmentally friendly, accumulation of the silicone oil on hair is avoided, meanwhile, the anti-oxidation, antibacterial and anti-inflammatory effects are achieved, the health of the whole scalp is maintained, and the shampoo composition is safe and reliable. And the dandruff condition of a user is obviously improved within the 28-day period of the test.

The invention discloses an antibacterial door and window profile and relates to the technical field of doors and windows. The antibacterial door and window profile is prepared from, by weight, 30-50 parts of hard polyvinyl chloride resin, 15-45 parts of unsaturated polyester resin, 2-3 parts of hydroxyapatite, 5-8 parts of a silver halide solution, 1-2 parts of an ultraviolet light absorber, 3-7 parts of a stabilizer, 2-4 parts of a modifying agent and 1-5 parts of a fire retardant. The antibacterial door and window profile is high in antibacterial effectiveness, simple in production process, low in production cost, and suitable for promotion.

The invention relates to an anti-tarnishing agent for cyanide-free silver plating, which comprises the following components by mass concentration: 0.1-2g/L of a sulfuric acid compound, 10-25g/L of a sulfanilamide compound and water as a solvent. The sulfuric acid compound is one or more of castor oil sodium sulfate, lauryl sodium sulfate or ammonium thiosulfate. The sulfanilamide compound is one or more of 2-p-aminobenzene sulfonamide-5-methoxypyrimidine, sulfametoxypyrimidine, sulfaacetic acid sodium or sulfadiazol. According to the anti-tarnishing agent for the silver plating provided by the invention, the anti-tarnishing performance of silver plating parts is improved, the anti-corrosion performance of the silver plating parts is particularly improved remarkably, the storage cost of the silver plating parts is reduced, and the anti-tarnishing agent for the silver plating can be widely applied to the technical field of silver plating.

The invention provides a method for preparing alkyd resin for dyed veneers. The method comprises the following steps: step 1, mixing a reactive ultraviolet light absorber, a first batch of polyol monomers and an acid component to initiate esterification co-polymerization reaction; and step 2, adding a second batch of polyol monomers into the reaction liquid obtained after the step 1 is completed,and initiating esterification co-polymerization reaction; wherein the reactive ultraviolet light absorber comprises at least two esterification reaction active groups, and each esterification reactionactive group is independently selected from hydroxyl or carboxyl; the first batch of polyol monomers and the second batch of polyol monomers independently comprise at least two of dihydric alcohol monomers, trihydric alcohol monomers and tetrahydric alcohol monomers; and the acid monomer includes a polybasic acid monomer. According to the invention, the reactive ultraviolet absorber, the first batch of polyol monomers and the second batch of polyol monomers are jointly used as monomers for esterification polymerization reaction, so that the prepared alkyd resin has excellent permeability, yellowing resistance and discoloration resistance.

The present invention discloses a weather-resistant resin composition and applications thereof, wherein the weather-resistant resin composition does not contain a phenolic hydroxyl group so as to solve the problems of easy discoloration and aging caused by the phenolic hydroxyl group contained in the existing weather-resistant resin. According to the present invention, with the application of theweather-resistant resin composition to prepare the copper clad laminate, the performance test results show that the prepared copper clad laminate has excellent heat dissipation, excellent heat resistance, excellent adhesion and insulation reliability, the thermal conductivity is up to 3.03 W/m.K, the peeling strength is 1.58 N/mm, the plate cracking time is more than 30 min, the breakdown voltageafter A-state and D-48/50 water boiling treatment is more than 7.0 kV, the performances such as thermal conductivity, peeling strength, breakdown voltage, thermal stress, Tg, Td and the like after blue light irradiation are not significantly attenuated, and the copper clad laminate has excellent weather resistance, such that the obtained product can meet the weather-resistant requirements of LED plant lighting lamps, and is suitable for the preparation of the prepreg, the laminated plate, the copper clad laminates or the printing circuit boards in LED plant lighting.

The invention discloses a fresh-keeping method for fresh-cut fruits and vegetables through honey and plasma combined treatment, and belongs to the technical field of fresh-cut fruit and vegetable storage and fresh-keeping. Soaking the fresh-cut fruits and vegetables in the honey solution, and after soaking is finished, taking out and draining off the fresh-cut fruits and vegetables; the drained fresh-cut fruits and vegetables are exposed to plasma for treatment; and packaging the fresh-cut fruits and vegetables subjected to plasma treatment, and refrigerating and storing. The fresh-keeping method provided by the invention effectively solves the problem that the fresh-cut fruits and vegetables are easy to discolor, prolongs the shelf life of the fresh-cut fruits and vegetables, retains the specific nutritional value of the fruits and vegetables, and is green, safe, simple and easy to implement.