235results about How to "Avoid phase separation" patented technology

A conductive thermosetting composition comprises a functionalized poly(arylene ether), an alkenyl aromatic monomer, an acryloyl monomer, and a conductive agent. After curing, the composition exhibits good stiffness, toughness, heat resistance, and conductivity, and it is useful in the fabrication of a variety of conductive components, including the bipolar plates of fuel cells.

The invention relates to a preparation method for a multi-component net-shaped nanofiber membrane. The preparation method includes the detailed steps that step1, mixing and beating are performed on meta-position aramid fibers, halogen salt and organic solvent by the mass ratio of 1:0.004-0.4:2.996-18.6, and a meta-position aramid fiber solution is prepared through mixing; step2, functionality high-molecular polymers and the solvent are mixed by the mass ratio of 1:5.4-98.99, then nano-particles are added, and heating and mixing are performed to prepare a functionality high-molecular solution, wherein the mass fraction of the nano-particles in the solution is 0.01-5%; step3, the meta-position aramid fiber solution obtained in the step1 and the functionality high-molecular solution obtained in the step2 are mixed by the mass ratio of 1:0.05-0.5 in a dripping mode, and then ultrasonic treatment is performed to obtain a spinning solution; step4, under the conditions of 20 DEG C-30 DEG C indoor temperature and 20-70% relative humidity, the spinning solution is used for electrostatic spinning, and finally the multi-component net-shaped nanofiber membrane with a 5nm-20nm net-shaped nanofiber diameter and reaches over 95% in net-shaped structure coverage rate is obtained. The preparation technology is simple and low in cost, tensile strength of material reaches 100MPa-2000MPa, and the functionality advantage is remarkable.

A parallel flow (minichannel or microchannel) evaporator includes channels which are crimped at or adjacent to their entrance location which provides for a refrigerant expansion and pressure drop control resulting in the elimination of refrigerant maldistribution in the evaporator and prevention of potential compressor flooding. Progressive crimping to counter-balance factors effecting refrigerant distribution is also disclosed.

A process for pyrolysing biomass is provided. The process comprises providing biomass to a pyrolysis reactor to produce a vapour product and condensing said vapour product to produce a condensed product, wherein a phase separation suppression agent is added during said process so as to promote the formation of a single phase condensed product.

A transdermal patch containing a drug comprising formoterol and/or a salt, a solvent for the drug, a pressure-sensitive adhesive comprising an ethylene/vinyl acetate copolymer resin and at least one of a filler and a plasticizer. The patch is substantially water-free. The patch serves to promote percutaneous absorption of the formoterol and/or a salt thereof and allow the efficacy of the drug to stably persist for a long period of time. The patch is thus effective for diseases such as asthma, which can be cured or prevented by exciting beta-receptors.

A power system based on a binary power cycle and utilizing a multi-component working fluid is disclosed. The working fluid is partially vaporized and a split recirculation approach is used to control the enthalpy-temperature profiles to match the heat source. A portion of the unvaporized working fluid is sprayed into the condenser.

Solid compositions with improved physical stability comprise an amorphous, low-solubility drug, a poloxamer, and a stabilizing polymer. The compositions provide good physical stability during storage and concentration enhancement of dissolved drug when administered to an aqueous environment of use.

The invention discloses a green light emitting diode and a manufacturing method thereof. The green light emitting diode is characterized in that a low-temperature protective layer is introduced during epitaxial growth of an InGaN (Indium Gallium Nitride)/GaN (Gallium Nitride) quantum well; the quantum well structure changes from InGaN/GaN to an InGan/Gan low-temperature protective layer 1/GaN structure; thereby protecting In in the InGaN/GaN, and avoiding damage to the In in high-temperature growth, and thus effectively avoiding phase separation of an In component in the InGaN, and improving the internal quantum efficiency; and in addition, two different stress relieving layers are located between an n-type layer and a green light emitting layer, and thus the stress of the green light emitting diode is decreased.

The invention discloses an organic electroluminescent device, comprising a substrate, an anode layer and a cathode layer, wherein the anode layer or the cathode layer is positioned on the surface of the substrate. The organic electroluminescent device also comprises organic functional layers between the anode layer and the cathode layer. The organic functional layers at least include a luminescent layer which emits light by being driven by an applied power source. The luminescent material combines the organic fluorescent dye with the matrix molecules by chemical bonds by way of chemical crosslinking, so that energy transfer of the luminescent material is improved, thus not only avoiding the complex process caused by doping, but also avoiding the dye from being separated in the matrix molecules, optimizing the device structure and improving the luminescent efficiency, brightness and stability of the device.

The present invention relates to an epoxy resin composition comprising a polyphenylene ether having a number average molecular weight of 1,000, to 4,000 and containing components having a molecular weight of 20,000 or more in an amount of substantially 20% or less, and an epoxy resin. The present invention further relates to an epoxylated polyphenylene ether resin obtained by reacting a phenolic hydroxyl group of a polyphenylene ether having a number average molecular weight of 1,000 to 4,000 with an epoxy group of an epoxy compound or an epoxy resin.

The invention describes use of an injectable form of Idebenone, suitable for intravenous injection or infusion. The proposed formulation is an oil-in-water emulsion, where Idebenone is associated with the oil droplets.

The invention relates to a preparation method of polyacrylonitrile fibres by using protein as a modifier. The preparation method comprises the following steps of (1) dissolving protein and polyacrylonitrile in an ionic liquid, and preparing a homogeneous-phase mixed spinning solution; (2) defoaming, filtering and measuring the spinning solution, and then extruding via a spinning jet to form a spinning trickle flow, and passing the spinning trickle flow through a humid air layer and then entering into a coagulating bath, and performing coagulating forming; and (3) performing pre-drawing, drawing, water-washing, drying and heat-setting, and then performing spinning forming, so as to prepare protein-modified polyacrylonitrile filaments or short fibres.

A resin composition includes a polyol and is used to form flexible foams. The resin composition also includes water and an alkoxylate of an active hydrogen containing species. The alkoxylate of the active hydrogen containing species acts in two separate ways. The alkoxylate acts as a blowing reaction modifier, thus maintaining slow-blow behavior of a foaming process that accompanies a reaction of the polyol with an isocyanate. The alkoxylate also acts as a compatibilizer. As the compatibilizer, the alkoxylate stabilizes the resin composition such that no phase separation occurs between the polyol, the water, and the alkoxylate. Stabilizing the resin composition allows for multiple day storage of the resin composition with no phase separation, thus extending useable shelf life and reducing production costs. Stabilizing the resin composition also allows for formation of flexible foams with consistent physical properties such as flexibility.

The invention relates to a preparation method of a nylon-6-based polyesteramide fiber. The method comprises the steps of carrying out melt spinning on a nylon-6-based polyesteramide polymer to obtainthe nylon-6-based polyesteramide fiber. A preparation method of the nylon-6-based polyesteramide polymer comprises the steps of mixing nylon-6 prepolymer ester with a polyester prepolymer and then carrying out an ester exchange reaction to obtain the nylon-6-based polyesteramide polymer. The nylon-6 prepolymer ester is prepared by firstly synthesizing a dibasic-acid-terminated nylon-6 prepolymer and then adding dihydric alcohol to enable dihydric alcohol to react with carboxyl of terminal groups. According to the preparation method of the nylon-6-based polyesteramide fiber, the nylon-6-based polyesteramide polymer is obtained through a copolymerization approach, so that the uniformity of nylon-6 and polyester blocks is improved, and the phase domain is controllable; polyesteramide slices containing polyester chain segments at different ratios can be obtained by changing the addition quantity of the polyester prepolymer, so that the sequence structure is controllable, and the polymerization process is flexible. The prepared fiber has high spinnability and stiffness and can be applied to the fields of clothing, home textiles, automobile interior decoration and the like.