59results about How to "Maintain solubility" patented technology

Process for providing a binder for mineral fibers, comprising the steps of: mixing together under reactive conditions an amine and an anhydride whereby water is added thereto, once substantially all the anhydride is dissolved and/or reacted in the amine.

Doxorubicin block copolymer formulations for use in preparing injectable compositions for treating cancer patients which contain lactose for solubilizing the doxorubicin and block copolymers in said formulations and methyl paraben for stabilizing these formulations, as well as a method of preparing and using these injectable compositions.

The present invention relates to a method of processing nanocrystals. The method comprises providing a mixture comprising nanocrystals, contaminants and a first solvent in which the nanocrystals are soluble, and using chromatography to reduce the amount of contaminants in the mixture. The method optionally comprises isolating the nanocrystals after chromatography. The method allows for the production of nanocrystal compositions having a total amount of surfactant associated therewith, the amount of surfactant comprising an amount of bound surfactant and an amount of free surfactant in the solvent, the amount of free surfactant being less than about 1% of the total amount of surfactant in the solvent. The present invention, accordingly, also relates to such compositions and corresponding composites of nanocrystals in organic polymer matrices.

The present invention aims at dissolving hydrogen gas in a liquid and maintaining the solubility of the hydrogen gas in the liquid at a high state.

A sealing bag 1 that dissolves hydrogen gas in a liquid by being put into the liquid includes a hydrogen permeable film that can permeate hydrogen gas that is sealed and filled in the sealing bag to outside. By sinking this sealing bag 1 into the liquid in advance, the hydrogen gas that is permeated through the hydrogen permeable film is dissolved in the liquid. Furthermore, since the hydrogen gas is continuously permeated little by little through the hydrogen permeable film, the solubility of the hydrogen in the liquid can be maintained at a high state.

The invention relates to a series of olefin monomer of a polymerisable functional group 8-hydroxyquinoline metal complex, its preparation process and use thereof, wherein the preparation process consists of synthesizing alkene monomers containing 8-hydroxyquinoline through reaction between vinyl compound containing reacting function group with modified 8-hydroxyquinoline, then compounding with metallic ions and 8-hydroxyquinoline.

The present invention relates to a water treatment composition comprising blended phosphates which exhibit a synergistic effect for corrosion and scale control and as a sequestering chemical treatment of potable water and more particularly to chemistry which lowers the phosphate concentration necessary to achieve effective corrosion prevention. The composition controls corrosion and cleans the water distribution line by removing scale, tuberculation, and biofilm. Sequestration of the heavy metals and soft metals such as iron, manganese, calcium, and magnesium provides complete solubility of the material to be removed from the metal surface. The inclusion of citric acid with the blended phosphate formula improves drinking water quality in 2 ways: 1) a reducing agent reverses the oxidation of metals which would convert metal to metal salts (copper/lead, etc.) and 2) by chelation, it encapsulates transition metal cations, especially Manganese and Iron, found while source water passes through the treatment process and the drinking water distribution piping network.

The invention belongs to the technical field of 3D printing and after-treatment and in particular discloses a method for eliminating a 3D printing wax type supporting material. The method comprises the following steps of uniformly stirring an alcohols organic solvent, an alcohols polymer organic solvent and plant oil according to a certain ratio to prepare a mixed organic solvent; and at a certain temperature, placing a 3D printing sample into the mixed organic solvent, soaking, after removing the wax type supporting material, taking out the 3D printing sample, repeatedly washing with water, and drying to obtain a final wax-free 3D printing sample. The method can directly dissolve residual wax in the sample, ensures the basic requirement for completely eliminating a wax type material, has low requirements for environment, low cost and high efficiency, is simple in operation, does not influence the size, the structure, the surface performance and the like of a resin forming material and is suitable for elimination after-treatment processes aiming at the wax type materials in laboratories or factories and in particular for after-treatment links for 3D printing employing the wax type supporting material.

The present invention discloses an Beta-alkoxypropionamide compound represented by the general formula (I); a solvent and a detergent each containing the alkoxypropionamide compound; a liquid chemical composition comprising a specific Beta-alkoxypropionamide compound and a chemical dissolved therein; and a process for producing a Beta-alkoxypropionamide compound which comprises reacting acrylamide with an aliphatic monohydric alcohol in the presence of a basic catalyst. The solvent and detergent each has excellent solubility which enables the solvent and detergent to dissolve also in paraffin, etc., while retaining the dissolving power of amide solvents. The liquid chemical composition contains any of various agricultural chemicals satisfactorily dissolved therein, and retains safety and long-lasting effectiveness. Also provided is a process for industrially advantageously producing the solvent and detergent.

Alternative inhibitors that offer an improvement over tolyltriazole in inhibiting yellow metal corrosion. The dithiocarbamate compounds and their salts were compared to that of tolyltriazole under identical conditions. These comparative tests were conducted in common corrosion testing systems, using both electrochemical corrosion cells and pilot cooling rigs, using various water conditions. The test methods included electrochemical studies such as linear polarization resistance, open circuit potential versus time, Tafel and cyclic polarization.

The present invention relates to a method and apparatus for chromatographically analyzing/purifying samples in a detector, comprising an autosampler to contain a sample for chromatographic analysis and a chromatographic system comprising a loading pump, and an eluting pump and at least one chromatography column. A detector is included for detecting compounds in the sample from the chromatography system. The loading pump establishes a flow of a loading solvent through the autosampler to dissolve the sample and to load the sample on the chromatography column. The eluting pump establishes a flow of eluent of increasing strength through the column and to the detector. In addition, the present invention provides improved methods of screening and preparative chromatography.

A negative resist composition includes a polymer having any one of dicarboxylate monoester compounds represented by the following general formulae (1) and (2) as a monomer component:

wherein, R₁ and R₂ represent alkyl chains having 0 to 8 carbon atoms, R₃ represents a substituent having at least two or more alicyclic structures, and R₄ and R₅ represent hydrogen atoms or alkyl groups having 1 to 8 carbon atoms. A method for forming a resist pattern uses the above negative resist composition. By containing the polymer, a resistance to dry etching and a resistance to electron beam from a scanning electron microscope (SEM) are enhanced as well as a solubility in an alkali developing solution is maintained.

The invention discloses a preparation method of a pre-cooked Fotiaoqiang frozen bag. The preparation method includes the following steps: cooking bone soup by adopting a high-temperature high-pressureshort-time processing mode, then adding a plurality of materials such as abalones, sea cucumbers, scallops, shark lips, fish maws, shiitake mushrooms, tendons, quail eggs, duck gizzards, etc., boiling the mixture with soft fire to obtain a Fotiaoqiao product, cooling the Fotiaoqiao product to room temperature, adding scallop skirt hydrolysate, carrying out packaging by adopting a high temperatureresistant steaming/boiling bag, then quick freezing the bag at -35 to -45 DEG C for 50-60 minutes to obtain a pre-cooked Fotiaoqiao frozen bag, and putting the pre-cooked Fotiaoqiao frozen bag in a refrigerator (-18 DEG C) for frozen storage. The pre-cooked Fotiaoqiang frozen bag is high in nutrient value, simple and convenient in processing technology and easy to realize industrial production; and a proper amount of the scallop skirt hydrolysate is added to inhibit the growth and recrystallization of ice crystals, so that the method can maintain water retention capacity, solubility and otherfunctional characteristics of proteins better, and can prevent the product from darkening in the process of freezing storage and from affecting the eating quality.

The invention provides ionizing matrix compounds. These compounds are useful for mass spectrometry and ion mobility spectrometry as ionizing matrices facilitating transfer of diverse classes of analyte compounds from solid or solution states to gas-phase ions.

A method for manufacturing a thermoplastic resin composition enabling easy control of the weight average molecular weight of a thermoplastic resin used in a soluble three-dimensional modeling support material, the support material having sufficient strength even when used in the manufacture of a three-dimensional object by an FDM system 3D printer, being less colored with excellent appearance quality, and having a high dissolution speed in neutral water and quickly removable from a precursor of the three-dimensional object without using a strong alkaline aqueous solution; and the thermoplastic resin having dicarboxylic acid monomer units derived from a dicarboxylic acid component and having a proportion of an aromatic dicarboxylic acid monomer unit derived from a sulfonic acid group and/or sulfonate group-containing aromatic dicarboxylic acid component in the dicarboxylic acid monomer units of 10 mol % or more; the method including mixing an organic salt compound represented by formula (I):

(R¹—SO₃⁻)_nXⁿ⁺  (I).

The present invention is a soluble material for three-dimensional modeling that is used as a material of a support material for supporting a three-dimensional object when the three-dimensional object is manufactured by a 3D printer of a fused deposition modeling system and that contains a thermoplastic resin having a hydrophilic group and an organic salt compound represented by a general formula (I) below: (R¹-SO₃⁻)_nXⁿ⁺ (I). According to the present invention, it is possible to provide a soluble material for three-dimensional modeling that is used for a support material and that is capable of suppressing the degradation of the modeling accuracy of a three-dimensional object when the three-dimensional object is manufactured by a 3D printer of a fused deposition modeling system, and has a high rate of dissolution to neutral water to be removable speedily from a precursor of the three-dimensional object without use of a strong alkaline aqueous solution.

The present invention provides surface-stabilized amorphous pharmaceuticals comprising an amorphous pharmaceutical substrate coated with a biocompatible immobilizing material. Amorphous pharmaceutical substrates that are prone to surface enhanced crystallization benefit from the present coatings. The coated amorphous pharmaceuticals of the present invention maintain their amorphous state and, therefore, their solubility over extended periods of time, relative to uncoated pharmaceuticals.

The invention discloses an automatic control system for submerged plant recovery, and belongs to the technical field of water body restoration. The system comprises online monitoring equipment, a regulating and control facility and a main control machine cabinet, wherein the online monitoring equipment and the regulating and control facility are connected with the main control machine cabinet; water body data detected by the online monitoring equipment is received through the main control machine cabinet and is processed; then, the regulating and control facility is controlled to perform corresponding processing. The invention also discloses an automatic control method for submerged plant recovery. The stable living environment can be provided for submerged plants; in addition, the automatic control mode is used; the maintenance is simple; meanwhile, the flood drainage and storage regulation functions of the water body cannot be influenced; the problem of submerged plant recovery difficultly in a eutrophication water body and a black-odor riverway in the prior art is solved.

A two-stage recycle hydrocracking process may comprise hydrocracking at least a portion of a hydrocarbon feed to produce a first hydrocracked effluent, separating the first hydrocracked effluent into at least four separated effluents, hydrocracking at least a portion of the fourth separated effluent to produce a second hydrocracked effluent, and cooling the second hydrocracked effluent to a temperature less than or equal to 250 degrees Celsius to produce a cooled effluent. The second hydrocracking effluent may have a total concentration of aromatic compounds sufficient to maintain the solubility of heavy polynuclear aromatics in the second hydrocracked effluent and reduce precipitation of the heavy polynuclear aromatics in the second hydrocracked effluent. Processes for reducing or preventing the precipitation of heavy polynuclear aromatics during hydrocracking are also described.