57 results about "Opalescence" patented technology

The invention relates to agate-containing dark green glaze for ru-porcelain, a processing method of the glaze as well as the ru-porcelain and a firing method thereof and relates to the technical field of silicate ceramics. The agate-containing dark green glaze for the ru-porcelain is prepared from components in parts by weight as follows: 6-20 parts of ru jade, 1-15 parts of agate, 10-70 parts of feldspar, 2-8 parts of calcite, 1-20 parts of wollastonite, 0-2 parts of talc, 0-15 parts of chest wood ash, 1-8 parts of ammolite and 1-20 parts of black bluestone. The enamel of the ru-porcelain fired with the adoption of the agate-containing dark green glaze for the ru-porcelain takes dark green as a base, can present the deep and full sky blue, azure, light greenish blue, bluish white, pale blue and bright green and can present bright and transparent pea green and onion green color. The ru-porcelain adopting the agate-containing dark green glaze for the ru-porcelain has good jade sense and opalescence effects and has a smoother glaze surface, higher mechanical strength, lower water absorption rate and high firing qualification rate.

The invention which belongs to the medicine processing field concretely relates to a preparation method of a long-circulating nanoparticle. The preparation method of the long-circulating nanoparticle provided in the invention has the advantages of simple operation, and good targeting and good in vitro release of products. The method comprises the following steps: 1, dissolving 5-Fu (5-fluorouracil), PEG-PHDCA (polyethylene glycol-poly(hexadecyl cyanoacrylate)) and a phosphatide in a mixed organic solvent of tetrahydrofuran and ethanol to form an organic phase; 2, slowly adding the organic phase to a water phase of a surfactant in a dropwise manner under magnetic stirring, and fully diffusing the organic phase by continuously stirring for 1h after finishing the dropwise addition; 3, carrying out reduced pressure evaporation to remove the organic solvent to obtain a nanoparticle colloidal suspension with a blue opalescence; 4, carrying out ultracentrifugation separation deposition on the nanoparticle, and washing; and 5, carrying out ultrasonic dispersion with a 4% mannitol solution, and freeze-drying.

The invention discloses glass ceramics. The glass ceramics is prepared from the following components, in percentage by weight: 65-80% of SiO2, 0-3.5% of Al2O3, 7-12.5% of Li2O, 0.5-3% of K2O, greaterthan or equal to 3% and less than or equal to 10% of Y2O3, 1.5-4% of P2O5, 1-5% of ZrO2, 0.5-2% of MgO and 0.5-2% of ZnO. The glass ceramics solve problem of molding and opalescence presenting of theglass ceramics which take a quartz solid solution and lithium disilicate as main crystal phases by adjusting the components of the glass ceramics, the internal quality of the glass ceramics is uniform, the glass ceramics can be efficiently and stably produced, and the glass ceramics have the high hardness, the high Young modulus and the higher transmittance, and can be widely applied.

The invention discloses an open foaming device for car air channel board, comprising foaming units, forming mold and mold platform. The forming mold is set on mold platform, and it concludes bottom and top mold, said bottom mold is an integral, said top mold comprises multi-section top mold in relative to bottom mold. The multi-section top mold is clamped section by section according to the sequence of polyurethane material casting. The clamping and forming of polyurethane in front section are finished before coagulation and solidification, and clamping and forming of polyurethane cast in next section is finished gradually. The invention is characterized by no filling of catalyst for prolonging opalescence time, high producing efficiency, and good quality of air channel board.

The invention relates to the technical field of false teeth, in particular to a 3D printing false tooth material .The 3D printing false tooth material comprises zirconia enhanced lithium silicate glass ceramic used as a substrate material, the zirconia enhanced lithium silicate glass ceramic is matched with a facing material for carrying out personalized decoration on the zirconia enhanced lithium silicate glass ceramic .The facing material is the low-melting-point fine particle feldspar material .By means of perfect matching of coefficients of thermal expansion of the substrate material and the facing material, good bonding of the two materials and long-term stability of the facing material are ensured; the low-melting-point fine particle feldspar material is uniform, compact in surface and good in roasting stability and has excellent grinding and polishing performance, and therefore the surfaces of false teeth can be smooth and compact; the low-melting-point fine particle feldspar material has the high permeability and warn tone, meanwhile, the zirconia enhanced lithium silicate glass ceramic has an opalescence effect, and therefore the surface color can be fresh and attractive .

The invention provides emerald green glaze which is prepared from, by weight, 10-16 parts of primary medicines, 39-45 parts of melilite, 11-17 parts of quartz, 13-19 parts of calcite, 4-6 parts of talcum, 3.5-4.3 parts of iron ores, 0.08-0.12 part of chromium oxide and 5-7 parts of zinc oxide. Compared with the prior art, the emerald green glaze has the advantages that iron and chromium serve as coloring agents and are fired in reducing atmosphere to form the emerald green glaze, and the emerald green glaze with pure natural colors, strong jade texture and opalescence and high yield can be prepared by firing without removing iron in raw materials.

The invention relates to the field of preparation of medicines and particularly relates to ropivacaine nano particles, a preparation method thereof and an optimizing experimental method of effects of the ropivacaine nano particles. The preparation method comprises following steps: (A) dissolving ropivacaine free alkali and polylactic acid-polyglycollic acid segmented copolymer in dichloromethane to form an organic phase while a polyvinyl alcohol solution is employed as an aqueous phase; (B) performing evaporation to a white emulsion at 30-40 DEG C to remove the organic phase to obtain a pale blue opalescence suspension liquid; and (C) performing centrifugal separation to the pale blue opalescence suspension liquid to obtain a precipitate, washing the precipitate, and performing ultrasonic dispersion and a vacuum freeze-drying process to obtain the ropivacaine nano particles. By means of the prepration method of the ropivacaine nano particles, an in-vitro releasing research proves that the ropivacaine nano particles has a releasing rate being about 73% in 96 h, a slow-releasing effect is quite good and a pain-relieving requirement on acute pains, such as post-operation pain and the like, can be satisfied just through one-time dosing.

The invention relates to a stable ibuprofen arginine injection and a preparation method thereof. The injection comprises ibuprofen, arginine, and meglumine. Also, sodium dihydrogen phosphate and sodium thiosulfate can be contained in the injection. The injection can be an injection liquid, a transfusion liquid or a lyophilized powder injection. The ibuprofen arginine injection provided by the invention brings no problem in respects of haemolyticus, vascular stimulation or allergy. When a prior product is diluted by using physiological saline or a 5% glucose injection, a white opalescence or turbid phenomenon is occurred. With the injection and the preparation provided by the invention, the problem is solved, the physical stability problem of the product is solved, and the quality stability and safety of the product are ensured.

The invention relates to bioactive peptide milk substrate liposome essence water having blue opalescence and a Tyndall phenomenon. The bioactive peptide milk substrate liposome essence water consistsof the following components in parts by weight of 10-60 parts of milk substrate liposome, 0.1-1 part of bioactive peptide, 0.1-1 part of ginsenoside, 0.002-0.01 part of yeast essence, 0.001-0.01 partof alpha-bisabolol, 1-3 parts of tea polyphenols, 0.01-1 part of hyaluronic acid, 0.5-5 parts of trehalose, 0.01-3 parts of epsilon-polylysine and the balance distilled water, wherein all of the components are 100 parts. The essence water firstly adopts naturally-extracted bisabolol and polylysine united preservative, is free from chemical additives, has the effects of moistening, resisting wrinkles and whitening skin, is quick to seep, good in absorption and rich in nutrients, and can solve the problems that at current, essence water is difficult to deliver to a skin base layer or only a fewof active components can be delivered to the skin base layer for development of effects.

The invention relates to a preparation method of long-circulating nanoparticles and belongs to the field of drug processing. The preparation method can be operated simply and can produce the long-circulating nanoparticles having good targeting performances and external release properties. The preparation method comprises the following steps of dissolving 5-Fu, PEG-PHDCA and phospholipid in a mixed organic solvent of tetrahydrofuran and ethanol to obtain an organic phase, slowly and dropwisely adding the organic phase into a water phase of a surfactant with magnetic stirring, then persistently stirring for 1 hour so that the organic phase is dispersed fully, carrying out reduced pressure evaporation to remove the mixed organic solvent and to obtain a nanoparticle colloidal suspension liquid having blue opalescence, carrying out overspeed centrifugal separation precipitation and washing of nanoparticles, carrying out ultrasonic dispersion by a mannitol solution having the content of 4%, and carrying out freeze drying.

The invention discloses a hydroxytyrosol containing nanoemulsion preparation and a lyophilized agent thereof. The hydroxytyrosol containing nanoemulsion preparation is prepared from hydroxytyrosol, asurface active agent, an oil phase and a water phase. A preparation method of the hydroxytyrosol containing nanoemulsion preparation comprises the steps that 1, the surface active agent and hydroxytyrosol are weighed and added into oil to serve as the oil phase, and the materials are stirred and mixed in a water bath; 2, purified water is weighed and added into a beaker, the materials are placed in the water bath, the oil phase is slowly and dropwise added into the water bath under the water bath condition, and the materials are fully stirred to be completely emulsified until and a clear transparent solution with bluish opalescence and with the viscosity similar to an aqueous solution is formed; 3, the nanoemulsion preparation is frozen and dried, water is removed, and the hydroxytyrosol nanoemulsion freeze-dried preparation is prepared. The hydroxytyrosol nanoemulsion prepared through the method has the advantages of being good in stability, low in viscosity, small in grain size and capable of being diffused and permeating into the skin more easily, the lyophilized preparation is conveneitn to store and transport, and can be added into cosmetics, medicine and healthcare food moreflexibly and conveniently.

The invention relates to camellia oil nano-emulsion and a preparation method thereof. Each 1000 mL of camellia oil nano-emulsion comprises the following components: 1 to 140 g of camellia oil, 1 to 250 g of oil phase, 1 to 140 g of an emulsifier, 1 to 140 g of a co-emulsifier, 1 to 50 g of an antioxidant and the balance of ultrapure water, wherein the total volume is 1000 mL and the average grain size is less than 100 nanometers. The preparation method comprises the following steps: (1) preparation of the oil phase: weighing the camellia oil, the emulsifier, the oil phase and the antioxidant, mixing, and heating and stirring at 37+/-3 DEG C to obtain the oil phase; and (2) preparation of the camellia oil nano-emulsion: under the condition of continuously heating, dropwise adding the ultrapure water into the oil phase while stirring until the oil phase is clear and transparent or blue opalescence occurs to obtain nano-emulsion. After the camellia oil nano-emulsionis prepared, the mechanical stability of the camellia oil is improved, the bioavailability of the camellia oil is improved and the curative effect is enhanced.

The invention discloses color-unchangeable lead-containing opalescent frit which is prepared from the following raw materials in part by weight: 40-50 parts of SiO2, 5-10 parts of Al2O3, 1-5 parts of CaO, 30-40 parts of PbO, 1-5 parts of ZrO2 and 1-5 parts of alkali metal. The color-unchangeable lead-containing opalescent frit disclosed by the invention has the beneficial effects that the composition proportion is determined through a lot of experimental screening, experimental results show that all the components are more scientifically and reasonably proportioned, ceramics prepared by the frit disclosed by the invention has good glazed smoothness, good enamel, uniform opalescence and wide application scope.

The invention relates to the field of pharmaceutic preparations and discloses a method for preparing gemcitabine hydrochloride lyophilized powder. According to the method for preparing the gemcitabine hydrochloride lyophilized powder, a primary pre-freezing process and a stage drying process are used for lyophilization; appropriate vacuum degrees and temperature are matched at all drying stages to avoid the problem that hydrochloric acid is removed from gemcitabine hydrochloride under high vacuum degree, and drying efficiency is low due to low vacuum degree; meanwhile, temperature is slowly raised at different speed at different drying stages, and the problem that the gemcitabine hydrochloride is deacidified due to too high heating speed can be solved. Compared with the prior art, the method for preparing the gemcitabine hydrochloride lyophilized powder has the advantages that the method is easy to operate, lyophilization time is short, and drying temperature is low; the prepared gemcitabine hydrochloride lyophilized powder product is high in outer structural quality and redissolution performance; a redissolution solution is clear and transparent, and opalescence is avoided; relative substances are low in content, and the prepared gemcitabine hydrochloride lyophilized powder is safe and reliable in quality; and the method is suitable for preparing the gemcitabine hydrochloridelyophilized powder and can be widely applied to large-scale production of the gemcitabine hydrochloride lyophilized powder.

A packaged product formed by enclosing a content material, such as food or beverage, sanitary products or medical products, within a packaging material including at least a layer of hydrophilic resin, is heat-treated with hot water for, e.g., boil sterilization or retort sterilization. The hot water is caused to contain a water-soluble compound in an amount substantially exceeding a level contained in tap water, whereby it becomes possible to suppress the opalescence of the packaging material causing inferior appearance or transparency and leading to a lowering in gas-barrier property, which has been problematic in the conventional boil or retort hot water treatment.

The invention relates to a folic acid coupling hydroxypropyl chitose nanometer particle and a corresponding preparation method, wherein the preparation method comprises mixing hydroxypropyl chitose water solution with folic acid in same volume, reacting completely at 70 DEG C without light, dialyzing for 24h, freezing and drying dialyzed product to obtain folic acid coupling hydroxypropyl chitose light yellow solid, adjusting the pH value of folic acid coupling hydroxypropyl chitose water solution to 5-6, adding sodium polyphosphate solution until the light yellow fades and appears opalescence, to obtain nanometer particle. The prepared folic acid coupling hydroxypropyl chitose nanometer particle has significant targeting effect on tumor cell, controllable particle diameter, biological degradation, non toxicity and mild process, thus is suitable for target slow-release carrier of protein drug.

The invention relates to the field of preparing processes for human fibrinogen, and particularly relates to a preparing process for instant precipitate-free freeze-dried human fibrinogen. The process includes five steps, namely the method includes a first step of component I precipitate dissolving and filtering; a second step of S/D virus inactivation; a third step of twice low-temperature ethanol precipitation rectification; a fourth step of freeze-drying; and a fifth step of virus inactivation in a dry heat manner. Through the improved fibrinogen production process, the fibrinogen which is instant, precipitate-free, opalescence-free and free of protein particles can be prepared. The process can prepare the human fibrinogen used for traditional intravenous injection, and can prepare high-concentration human fibrinogen compatible in human fibrous protein adhesives.

The invention relates to a medicinal preparation and a preparation method thereof, in particular to a sevoflurane venous microemulsion and a preparation method thereof, and belongs to the technical field of medicaments. The sevoflurane venous microemulsion is prepared from sevoflurane, oil for injection and auxiliary materials such as emulsifying agent and the like by using the microemulsion preparation technology. The sevoflurane venous microemulsion is clear and transparent liquid, has light blue opalescence, and has Tyndall phenomenon; and the medicament-loading rate is 0.01 to 2.00 percent, the average grain diameter is 10 to 100 nanometers, and the pH is 4.5 to 9.5. On the one hand, the sevoflurane venous microemulsion improves the bioavailability and treatment effect of the sevoflurane by changing an administration route, and on the other hand, the venous microemulsion has targeting and can reduce the toxic or side effect of the medicament; and meanwhile, the volatility of the sevoflurane is reduced to be minimum due to the package of the microemulsion so as to reduce the acrimony of the sevoflurane, alleviate the pain of a patient during injection, make the patient accept easily and improve the administration compliance of the patient.

The invention discloses a method for preparing an interleukin-11 semi-finished product solution, and products thereof. The method comprises the following steps of: dissolving interleukin-11 into a phosphate buffer, adding glycin, and stirring to obtain the mixed solution; adjusting the pH value of the mixed solution; supplementing injection water to fix volume, and stirring to obtain the interleukin-11 semi-finished product solution, wherein the pH value of the mixed solution is adjusted to 8.0-9.5 by using diluted alkaline or is adjusted to 1.0-6.0 by using diluted acid. The method better solves the problems of accumulation and settlement of the interleukin-11 in the preparing, sterile filtering and packaging processes of the semi-finished product. The prepared semi-finished product solution is clear and transparent, and has no opalescence, and the volume of the protein of the main drug is accurately fixed. The sterile filtration of the prepared semi-finished product solution semi-finished product solution is easy to implement, the filter membrane can not be blocked, and the accumulation and settlement can not be caused during the packaging process of the semi-finished product. The clearness of the finished product is good after redissolution, no flocky precipitate or opalescence can be produced, the stable activity is maintained, and the use quantity is reduced in clinic.