32results about How to "Does not change the molecular structure" patented technology

This invention is purification method of raw heparin sodium. The product high-quality heparin sodium could be used for injection. The procedure is as followings: we use raw heparin sodium as material and purify to get high-quality heparin sodium with ion-exchange chromatography, kalium hypermanganicum oxidization, ultrafiltration and organic solvent fractional precipitation in the order we describe here. The ion-exchange chromatography helps remove most of foreign substance and ultrafiltration remove manganese ions, heavy metal ions and pigments. We choose NaCl solution as washing liquid to make sure the separation of heparin sodium and other foreign substances. This invention is advantageous in low cost, stable quality, high yieldness, and the apposite molecular and weight range. It's also approximate for alarge scale production.

The invention provides a reduction-sensitive-type water-soluble molecularly-targeted photosensitizer. The photosensitizer is a conjugate which is formed by sequentially connecting meso-tetrahydroxy phenyl chlorine (mTHPC) with a folic acid group through a carbonic ester bond, a disulfide bond and a PEG chain. The invention further provides a chlorine intermediate and a folic acid PEG cysteine amide intermediate which are used for preparing the photosensitizer and a preparation method of the targeted photosensitizer. According to the photosensitizer which has the good tumor targeting performance, the photodynamic activity and water solubility, by introducing the disulfide bond and the carbonic ester bond into the molecular structure, the targeted photosensitizer can generate an exchange reaction of a sulfydryl and the disulfide bond and a nucleophilic substitution reaction in molecules in a strong reducing environment of a tumor cell after entering the cell, therefore, the mTHPC is completely released, and it is guaranteed that the photodynamic activity of the mTHPC cannot be reduced due to the structural change.

The invention relates to a method for removing mycotoxin in vegetable fat and application device. According to the method, new processing equipment and technologies are adopted in two working sections, wherein in one working section, after caustic soda liquid deacidification is carried out, a vegetable oil detoxification device is used for carrying washing detoxification treatment on vegetable oil alkali oil refining, and in the adsorption and decoloration working section of alkali oil refining, a vegetable oil microwave processing adsorption detoxification device is used for specific adsorption and detoxification of mycotoxin. The method has the advantages that the content of the mycotoxin in the treated vegetable fat can be controlled at a not-detected level (the detection limit is 2mu g/kg), meanwhile, the molecular structure of the processed fat is unchanged, pollutants are not brought in, the nutrition and flavor of the fat are unchanged, and the method is suitable for continuous refinement production.

The invention provides a single aligned carbon nano tube jet-printing arrangement method. The method comprises the steps that a substrate is modified with octadecyltrichlorosilane (OTS), so that the surface of the substrate has a hydrophobic property; precise control over the thin film position, the aligned density and patterning of aligned carbon nano tubes is achieved on the functional hydrophobic substrate through ink-jet printing, and a carbon nano tube thin film which is uniform in density and consistent in orientation and has different patterns is arranged. By means of the method, the carbon nano tube arrangement area of the size from several micrometers to the wafer level can be effectively controlled; the problems can be solved that in all existing arrangement methods, the arrangement position, the arrangement orientation, the arrangement density and the thin film array patterning of one-dimensional nano materials on the substrate cannot be efficiently and precisely controlled;the method can be widely used for preparing various high-performance photoelectric devices, logic circuits and functional thin films based on the carbon nano tubes, and the method also has a wide application prospect in the field of flexible wearable nano devices.

The invention discloses helianthus tuberosus ferment as well as a preparation method, preparation and application thereof. The helianthus tuberosus ferment consists of the following raw materials in parts by weight: 60-80 parts of fresh helianthus tuberosus, and 20-40 parts of sugar. The fresh helianthus tuberosus is used as the raw materials, so that on one hand, the prepared helianthus tuberosus ferment has special color and smell and is good in mouth feel, and the fragrances lasts long; and on the other hand, the helianthus tuberosus ferment is rich in special functional components of inulin, polyphenol flavonoid and the like in the helianthus tuberosus, and nutrient components of various natural vitamins, minerals, trace elements, amino acids and the like. According to the preparation method of the helianthus tuberosus ferment, normal-temperature normal-pressure fermentation is adopted, and fermentation microorganisms come from preferable microorganisms in natural raw materials of the helianthus tuberosus, helianthus tuberosus tragon and the like, so that the helianthus tuberosus ferment is green and safe, notable in efficacy and strong in pertinence, has notable efficacy of improving flora of intestinal tracts of human bodies, resisting metabolic diseases of diabetes, high blood lipid and the like, eliminating free radicals, resisting oxidation, enhancing immunity, resisting tumors and the like, effectively strengthens metabolism, and achieves the purpose of strengthening bodies when being used for complementing ferment of the human bodies.

A polyvinyl chloride pipe with radial and/or longitudinal thermal directional shrinking memory function is prepared from polyvinyl chloride through shaping pipe, blocking both ends, arranging it in a limiter, filling high-pressure air in while heating it for expansion, cooling and releasing pressure.

The invention discloses a washing device. The washing device comprises a gun body, a first high-temperature steam pipe, a valve device and an extraction liquid pipe, wherein the gun body comprises a stock and gun barrel segments communicated with the stock, the gun barrel segments include the first gun barrel segment, the second gun barrel segment and the third gun barrel segment, one end of the first gun barrel segment is communicated with one end of the stock, the other end of the first gun barrel segment is communicated with one end of the second gun barrel segment through a universal joint with a hollow cavity, the second gun barrel segment is sleeved with the third gun barrel segment, one end of the third gun barrel segment is connected with the universal joint, an annular space is formed by the end of the third gun barrel segment and the universal joint, and the other end of the third gun barrel segment extends to the front side of the other end of the second gun barrel segment to form a diffusion space; the first high-temperature steam pipe is arranged in the gun body, one end of the first high-temperature steam pipe is communicated with one end of the universal joint, and the other end of the first high-temperature steam pipe extends out of the other end of the stock to be communicated with a high-temperature high-pressure steam generation device; the valve device is arranged between the stock and the first gun barrel segment and used for connecting and disconnecting the first high-temperature steam pipe; the extraction liquid pipe enters the first gun barrel segment and is communicated with the first high-temperature steam pipe and the universal joint.

The invention discloses enzyme jam and a preparation method thereof. The enzyme jam is prepared by the following steps: re-fermenting raw materials of self-flow residues of first fermentation and flocculating precipitates of second fermentation of enzymes; grinding the re-fermented raw materials with a bone paste mill and decocting the grinded raw materials at vacuum low-temperature. According to the preparation method, enzyme fermentation byproducts are fully utilized, so that a new application field is provided for the self-flow residues of first fermentation and the flocculating precipitates of second fermentation in the production process of the enzymes; additionally, natural active functional components of pectin, polyphenol, flavone, mineral elements, lactic acid bacteria, yeasts and so on in the enzyme fermentation byproducts are well reserved in the obtained enzyme jam; the prepared enzyme jam does not contain any additive, and the product is green, natural and organic and is good in taste.

The invention discloses a preparation method of anti-skid elastic spandex core-spun yarn suitable for jean fabric. The method comprises the following steps of (1) preparing a prepolymer solution, (2)adding a certain amount of a mixed amine solution into the prepolymer solution, and carrying out a chain extension reaction and a chain termination reaction to prepare a polyurethane urea solution; (3) adding specific auxiliary agent slurry containing hydrotalcite and trace stearate into the polymer solution, stirring, and curing to prepare a spinning solution; (4) performing dry spinning, and adopting a specific spinning oil agent consisting of high-carbon silicone oil and stearate in an oiling process to prepare spandex fiber; and (5) twisting the spun fiber and short fiber to obtain the anti-skid elastic spandex core-spun yarn. The invention relates to the preparation method of the anti-skid elastic spandex core-spun yarn suitable for the jean fabric, and the method can effectively improve the friction performance of the spandex fiber and outer covering yarn, show a lower slipping and elastic degree, and meet the requirements of the field of the jean fabric for the anti-skid elasticspandex fiber.

The invention discloses a polyethylene of raised temperature (PERT)-II-type pearly-lustre gold marine water supply and drainage pipeline chromosome. The PERT-II-type pearly-lustre gold marine water supply and drainage pipeline chromosome is prepared from the following raw material components in parts by weight: 70-85 parts of a carrier, 10-20 parts of pearly-lustre gold powder, 10-22 parts of a processing agent, and 6-10 parts of a surfactant, wherein the carrier is PERT formed by high density polyethylene which is copolymerized. Compared with the prior art, the PERT-II-type pearly-lustre goldmarine water supply and drainage pipeline chromosome has the characteristics of rusting prevention, bacterium resistance, hydrolysis resistance, good insulativity, beautiful decoration, fastness andthe like and the advantages of low cost, convenient processing and construction processes and the like; and through introduction of the processing agent, the effect of coordinative coating is achieved, thus under the situation that a pipe processed through the chromosome absorbs light rays with different wave lengths, ordered arrangement of pearly-lustre gold is not destroyed, and the performancecharacteristics of high temperature resistance, illumination resistance, acid and alkali resistance, discoloring avoidance and the like of the pearly-lustre gold are sufficiently presented.

The invention provides a production method for a soft, spreadable honey product. The product is produced by feeding the honey in raw solid form through a side feed chute into a container defined by a vertical rotating auger with a clearance between the flight and the container. The auger flight drives the material to one discharge end of the container, and a closed discharge valve at the discharge end causes the honey to be admixed within the container and the crystals to fracture and to interact with one another, so as to grind them down making them smooth and small. The mixing action is carried out until the crystals in the honey are broken down sufficiently to form the honey into the soft, spreadable honey product and carried out without the use of any heat at any time and without filtering the product.

The invention relates to a treatment method for reducing the content of starch, protein and saccharides in rubber wood. The treatment method comprises the following steps: (1) adding a weak acid solution into the rubber wood for ultrasonic acidizing treatment; (2) after ultrasonic acidification treatment, adding an alkaline nano sodium silicate solution for ultrasonic neutralization treatment; (3) stacking and air-drying the rubber wood subjected to ultrasonic neutralization treatment, and performing high-temperature drying treatment when the water content is less than 70-80%; and (4) high-temperature drying treatment comprises a heating drying stage and a cooling humidifying stage. By the adoption of the treatment method, the content of starch, protein and saccharides in the rubber wood can be greatly reduced, the color of the treated rubber wood is uniform, and the rubber wood capable of preventing mildewing of the rubber wood for a long time and keeping the natural color of the wood can be obtained.

The invention relates to an application of magnesium alloy as a cosmetic container, and aims to solve the technical problems that existing cosmetics are poor in antibacterial and antioxidant capability, high in active chlorine and heavy metal concentration and harmful to bodies. The magnesium alloy as a raw material is used for preparing the cosmetic container. The magnesium alloy material enables the cosmetics to generate saturated active hydrogen and is suitable for daily life and other national economy industries including food industry, pharmaceutical industry, biology and medical science. A hydrogen-rich state is generated in the cosmetic container prepared from the magnesium alloy as the raw material through magnesium, and the quality of the cosmetic container can be improved in sterilization, oxidation resistance, chlorine neutralization and heavy meal removal modes; and the properties are improved due to the fact that the redox potential of the cosmetic container is changed and kept in a range of -250mV to -550mV for a long term.

The invention belongs to the technical field of oilfield water treatment, and particularly relates to a bactericide for oilfield water injection treatment and a preparation method thereof.The preparation method comprises the following steps that S1, low-molecular-weight chitosan is prepared, specifically, a chitosan sample is subjected to irradiation degradation with 60Co gamma rays, and the low-molecular-weight chitosan is obtained; s2, preparing a quaternary ammonium salt etherifying agent: dropwise adding epichlorohydrin into N, N-dimethyl long-chain alkyl tertiary amine, and reacting at a constant temperature to obtain the quaternary ammonium salt etherifying agent; s3, preparation of the bactericide: adding an acetic acid solution into the low-molecular-weight chitosan obtained in the S1, uniformly stirring to obtain a chitosan solution, then adding the quaternary ammonium salt etherifying agent obtained in the S2, and carrying out constant-temperature reaction to obtain the low-molecular-weight chitosan quaternary ammonium salt bactericide. Chitosan is degraded through < 60 > Co gamma ray irradiation, quaternary ammonium salt groups with long-chain alkyl and antibacterial performance are loaded to obtain the environment-friendly bactericide, and the environment-friendly bactericide is small in dosage, efficient in sterilization and environment-friendly and can meet the production requirements of oil fields.

The invention discloses an inverted T-shaped blind hole ceramic dielectric filter and a special mold thereof, belongs to the technical field of ceramic dielectric filters, and solves the problems that a plurality of resonance holes or coupling holes are formed in a single surface or multiple surfaces of a ceramic block in the prior art, the surface area of the ceramic block is occupied, and the overall size is increased. The inverted-T-shaped blind hole ceramic dielectric filter is characterized in that two upper holes are downwards formed in the upper surface of the ceramic plate body, lower holes are formed below the two upper holes respectively, the diameter of each lower hole is larger than that of each upper hole, the upper holes and the lower holes are integrally formed into an inverted-T-shaped blind hole in an injection molding mode, and meanwhile a special mold for the inverted-T-shaped blind hole ceramic dielectric filter is provided. The inverted-T-shaped blind hole with the diameter of the lower hole larger than that of the upper hole and the lower hole only communicated with the upper hole is formed through gel casting, a good foundation is provided for sintering and silver plating in the follow-up process, the dielectric constant and the Qf value are improved, insertion loss is reduced, electric energy is saved, and the requirements of 5G communication for miniaturization, light weight, low cost and high performance of the ceramic dielectric filter are met.

The invention relates to application of magnesium alloy serving as bathing supplies. In order to solve the problem that at present, tap water and bath wash are poor in antibacterial and antioxidant ability, high in active chlorine and heavy metal concentration and not beneficial to the human body, magnesium alloy is adopted as a raw material for preparing bathing supplies. Due to the magnesium alloy material, tap water and bath wash are made to generate saturated activated hydrogen to be applied to daily life and other national economy industries such as the food industry, the pharmaceutical industry, biology and medical science. According to the bathing supplies prepared by adopting magnesium alloy as the raw material, tap water and bath wash are made to generate the hydrogen-enriched state through magnesium, the quality of tap water and bath wash can be improved in a sterilization, anti-oxidation, chlorine neutralization and heavy metal removal mode, and due to the fact that the oxidation reduction potential of tap water and bath wash is changed and kept from -550 mV to -250 m V for a long time, the characteristics are improved.