61 results about "Active polymer" patented technology

The invention discloses a low-molecular-weight active polymer, an O / W type emulsion and a preparation method and application of the O / W type emulsion, and belongs to the technical field of flotation chemical agents. The preparation method of the low-molecular-weight active polymer comprises the following steps: mixing and dissolving acrylamide, acrylic acid, an active hydrophobic monomer and water according to a set ratio, heating to 30-40 DEG C in an inert atmosphere, keeping the temperature for 30-40 minutes, then adding a redox initiating system into a reaction system, and continuously stirring and reacting for 4-5 hours at a constant temperature in the inert atmosphere to obtain a reaction product. The O / W type emulsion comprises the following components in parts by weight: 10 to 30 parts of hydrocarbon oil collecting agent, 0.1 to 0.5 part of low molecular weight active polymer and 69.5 to 89.9 parts of water. The low-molecular-weight active polymer has an amphiphilic structure, and the stability of the emulsion is improved through dual effects. And after being mixed with a hydrocarbon oil collecting agent, the oil collecting agent can be stored for more than 50 days for a long time.

A temperature sensing apparatus having an electrode with an associated redox-active polymer. The electrode is connected to circuitry which applies an interrogating electrical potential waveform. The circuitry measures an electrical current resulting from application of the electrical potential waveform. The measured electrical current is processed to determine the temperature of a solution contacting the electrode. The apparatus may further comprise an analyte sensing redox-active polymer for sensing the amount of an analyte in the solution.

A first flow distribution device, to be disposed in a body or a stem of a showerhead of a substrate processing system, includes: a pair of electrodes; and an intermediate layer disposed between the pair of electrodes and comprising an electroactive polymer that changes state based on a voltage applied to the pair of electrodes. The pair of electrodes and the intermediate layer are collectively implemented as a baffle plate affecting flow of a substance through the showerhead.

A test device for monitoring sterilization using a steam sterilant in a chamber is provided. The test device includes a test stack. The test stack includes an entrance layer including an entrance hole. The test stack further includes a sensor layer spaced apart from the entrance layer. The sensor layer includes a pair of electrodes disposed on the sensor layer. The test stack further includes a sensor coating disposed on a portion of the sensor layer and including an electrically active polymer. The test stack further includes a channel layer disposed between the entrance layer and the sensor layer. The channel layer includes an internal channel. The internal channel is configured to allow a flow of steam sterilant from the entrance hole to the sensor coating.

A method including polymerizing a conjugated diene-based monomer, or the conjugated diene-based monomer and an aromatic vinyl-based monomer in a hydrocarbon solvent to prepare an active polymer; and reacting or coupling the active polymer with a modifier to prepare a modified conjugated diene-based polymer. Polymerization is initiated in the presence of a first polymerization initiator, and the polymerization reaction is performed by injecting a second polymerization initiator in at least one installment at a point where a polymerization conversion ratio is from 50% to 95%.

The present disclosure provides for organic battery electrodes and dual-ion batteries. In an aspect, the present disclosure provides for electrodes (e.g., cathodes, anodes) that include a carbon fiber sheet that includes a non-conjugated redox-active polymer(s) (RAP) (e.g., a layer of the non-conjugated redox-active polymers). The electrodes can be used in dual-ion batteries. In an aspect, the dual-ion batteries can operate at lower temperatures (e.g., about 0° or less) than other battery types such as rocking-chair batteries.

The present invention relates to the electrochemical detection of an analyte by capacitance spectroscopy using a redox active polymer-coated electrode such as a polyaniline-coated electrode.

The invention relates to the field of medicine, and more particularly to biosensor analytical devices and can be used for quantifying the concentration of glucose in blood, plasma and serum. The present device comprises a printed graphite electrode, the surface of which is modified with a hybrid composite material incorporating a biorecognition element in the form of glucose oxidase, wherein the hybrid composite material is a redox-active polymer based on chitosan covalently bonded to a mediator in the form of Nile blue. The technical result is that of broadening the range of detectable glucose concentrations to 0.006-1.0 мМ.

Living polymers prepared by organolithium initiated polymerization of conjugated diene monomer or copolymerization of conjugated diene and vinyl aromatic monomers are efficiently coupled by using a functionalized siloxane oligomer blend as coupling agent. Diene rubber compositions partially coupled with functionalized siloxane oligomer blends exhibit broad molecular weight distribution, increased throughput in their industrial processing, as well as faster dissolution in recipes to produce rubber toughened plastics such as HIPS and ABS. Radial styrene-butadiene block copolymers as well as their corresponding hydrogenated block copolymers achieved excellent thermoplastic elastomer performance and can be used for hotmelt adhesives, sealants, asphalt modification, footwear; technical compounds, thermoplastic gels, films or elastic fibers.

The invention belongs to the technical field of coalescing agents, and particularly relates to an odor-free coating coalescing agent and a preparation method thereof. The active polymer in the coalescing agent is prepared by adopting renewable polyphenol ellagic acid as an initial raw material, forming a polyether chain segment by utilizing a plurality of phenolic hydroxyl groups in the structure of the reactive polymer and epoxypropane through ring opening polymerization, and then introducing disulfide through acylation and nucleophilic substitution reaction. The boiling point of the coalescing agent exceeds 290 DEG C, and the coalescing agent is an odorless coalescing agent, does not make paint generate unpleasant odor when being used in civil water-based paint, can effectively improve the film forming speed of the paint, and also can improve the glossiness, impact resistance and wear resistance of a paint coating.

Extra fine Milk of Lime The present invention relates to an extra fine milk of lime having superior flowability and pumpability, more particularly concerns a milk of lime comprising a dry solid content of fine lime particles higher or equal to 30 wt% and lower or equal to 70 wt% based on weight of the milk of lime, in aqueous phase, said milk of lime comprising at least a polymer dispersant at an amount of 01 to 2.0 wt% of active polymer dispersant relative to said total dry solid content of said milk of lime, and at least a stabilizer at an amount of 0.5 to 4.0 wt% of active stabilizer relative to said total dry solid content of said milk of lime. The present invention also relates to a process for manufacturing a milk of lime having a superior flowability and pumpability.

In some embodiments, the present invention is directed to an actuator which includes at least the following: a pre-stretched electro-active polymer film being pre-stretched in a single or biaxial planar directions; at least one first semi-stiff conductor attached to a first surface of the pre-stretched electro-active polymer film, wherein the first surface is parallel to the single or biaxial planar stretch directions; at least one second semi-stiff conductor attached to a second surface of the pre-stretched electro-active polymer film, wherein the second surface is opposite to the first surface; where the semi-stiff conductors are configured to: fix the pre-stretched electro-active polymer film in a pre-stretched state and allow the pre-stretched electro-active polymer film to expand; a pair of mechanical connectors coupled to each end of an active region of the pre-stretched electro-active polymer film.

The present application relates to the field of polymer manufacturing, and particularly relates to a long-chain branched modification method of rare earth isoprene rubber and / or butadiene rubber, comprising the following steps: S1. performing solution polymerization of isoprene and / or butadiene and isoprene in a non-polar solvent in the presence of a rare earth catalyst to obtain a glue solution containing active polymer molecular chains; S2. when the conversion rate of the polymerization reaction reaches 95% or more, adding a compound branched modifier to the glue solution to perform a branched reaction; wherein the compound branched modifier comprises at least one of a chloride and an alkyl halide and at least one selected from ether compounds and tertiary amine compounds. The branched modifier used in the present application has a strong branching effect, and has good solubility so as to achieve uniform mixing at a molecular level in the glue solution, significantly alleviates the gel side reaction, reduces the gel content, narrows the molecular weight distribution, significantly improves the raw rubber performance, and improves the product uniformity.

A test device for monitoring sterilization using a steam sterilant in a chamber is provided. The test device includes a test stack. The test stack includes an entrance layer including an entrance hole. The test stack further includes a sensor layer spaced apart from the entrance layer. The sensor layer includes at least one pair of electrodes disposed on the sensor layer. The test stack further includes at least one sensor coating disposed on at least one portion of the sensor layer and including an electrically active polymer. The test stack further includes an intermediate layer disposed between the entrance layer and the sensor layer. The intermediate layer is disposed in fluidically connects the entrance hole and the at least one sensor coating. The intermediate layer is configured to allow a flow of the steam sterilant received from the entrance hole to the at least one sensor coating.

The application provides an active polymer microgel and a preparation method and application thereof. The active polymer microgel is prepared by emulsion polymerization with N,N-dimethyl acrylamide, a hydroxymethyl amide monomer, a methacrylic acid ester monomer and an emulsifier as raw materials under the action of a chain extender and an initiator. The inventor controls a large number of active groups in the active polymer microgel to provide crosslinking sites, improves the crosslinking density of subsequent plugging gels, and makes the plugging gels have a three-dimensional network structure after solidification, so that the crosslinking speed and crosslinking quality are improved, and the technical requirements of the plugging gels applied to deep high-temperature leakage layers on crosslinking agents are met.

The application relates to the technical field of water treatment, in particular to a photocatalyst, a preparation method and application thereof. First, a copolymer is obtained by taking acrylonitrile, acrylic acid and vinyl imidazole as monomers, then bismuth ion solution and silver ion solution are sequentially added to carry out a coordination reaction; then a surfactant and sodium tungstate are added to carry out a hydrothermal reaction; and finally post-treatment is carried out to obtain an organic polymer modified bismuth-silver doped photocatalyst. The application utilizes a copolymer containing carboxyl and imidazole groups as a ligand, uniformly anchors bismuth ions and silver ions through coordination, realizes uniform silver doping, avoids agglomeration, effectively widens the light response range through a small amount of silver doping, suppresses carrier recombination, and improves photocatalytic activity. The synergistic effect of the polymer and the surfactant induces the formation of a nanosheet structure, increases the specific surface area and active sites. The prepared photocatalyst has a high degradation rate for antibiotic wastewater such as tetracycline, has good cycle stability, and the degradation rate still remains above 85% after 5 cycles.

Extra fine Milk of Lime The present invention relates to an extra fine milk of lime having superior flowability and pumpability, more particularly concerns a milk of lime comprising a dry solid content of fine lime particles higher or equal to 30 wt% and lower or equal to 70 wt% based on weight of the milk of lime, in aqueous phase, said milk of lime comprising at least a polymer dispersant at an amount of 0.1 to 2.0 wt% of active polymer dispersant relative to said total dry solid content of said milk of lime, and at least a stabilizer at an amount of 0.5 to 4.0 wt% of active stabilizer relative to said total dry solid content of said milk of lime. The present invention also relates to a process for manufacturing a milk of lime having a superior flowability and pumpability.

An actuator mechanism having body, at least one actuator made of an electro-active polymer material which changes form depending on the electrical energy so that it triggers the body, at least two reinforcers which allow the actuator to change form are positioned on the actuator such that they remain opposite to each other and are connected to the actuator by clamping, thus transmitting movement to the body.

A method of producing a polymeric membrane for isolating a protein-of-interest from a protein mixture, the method comprising: immersing a membrane casting mixture into a first immersion fluid at a first immersion temperature and for a first immersion period to form an intermediate polymeric phase; and sequentially, immersing the intermediate polymeric phase into a second immersion fluid at a second immersion temperature and for a second immersion period to form the polymeric membrane, wherein the membrane casting mixture comprises a polymer composition dissolved in a casting liquid, the polymer composition comprising a base polymer and an active polymer, and wherein the first immersion fluid comprises a solvent and / or a mixture of solvents and / or a mixture of a non-solvent and a solvent, and wherein the second immersion fluid comprises a non-solvent and / or a mixture of non-solvents and / or a mixture of a non-solvent and a solvent, wherein the second immersion fluid has a greater %v / v of non-solvent than the first immersion fluid.

High concentration polymer slurries contain up to 70 weight percent active polymer in a hydrophobic solvent base treated with suspending agents, dispersants, and thinning agents. The slurries are prepared by mixing a solid polymer with an invert polymer emulsion without the need for specialized field equipment. These slurries provide increased polymer concentration and improved dispersibility of solid polymer or other hydrophilic colloids. The resulting formulations offer technical advantages, including enhanced efficiency, ease of handling, and cost-effectiveness.

The utility model discloses a kind of pumpless electric drive liquid cooling battery box devices, including integrally die-casting box, its inside is divided into battery cabin and cooling liquid cabin by partition, and its outer bottom is attached to set up the liquid cooling plate of inner flow channel;Inlet section and outlet section of flow channel are respectively corresponding to set up inlet flexible check valve and outlet flexible check valve, and the inner wall of flow channel between two valves is attached with electroactive polymer;Electroactive polymer is connected with alternating current power supply, generates radial periodic deformation drive cooling liquid from inlet flexible check valve to outlet flexible check valve directional flow. The utility model drives traditional pump by electroactive polymer deformation drive belt, and set up flexible check valve to prevent backflow, effectively reduce the power consumption of battery box liquid cooling system.

The present invention discloses a recyclable 3D-printable surface-active polymer component, its preparation method, and its application, relating to the technical field of 3D printing liquid resin materials. The method comprises mixing an acrylate monomer with a RAFT agent, a dynamic crosslinker, and a photoinitiator to form a 3D printing photosensitive resin solution. After 3D printing and curing, a three-dimensional surface-active polymer component is obtained. The resulting material exhibits excellent recyclability and the ability to directly functionalize the surface, and can be manufactured with high precision using DLP 3D printing technology.

The application discloses the technical field of polymer synthesis, and particularly discloses a hydrogenation method of a polymer, which comprises the following steps: obtaining an active polymer by using an anionic polymerization method; adding a terminating agent into a polymerization system and then performing hydrogenation reaction on the terminating reaction system to obtain a hydrogenated polymer. The application finds that the active polymer is terminated by the innovative terminating agent, which can effectively terminate the active molecular chain, maintain the activity of the catalyst in the hydrogenation process, improve the hydrogenation efficiency, and prevent the polymer from being degraded and broken in the high-temperature and high-pressure hydrogenation process.

A method, an electrochemical sensor and a system for selective detection of infections. The method detects a concentration of nicotinamide adenine dinucleotide, NADH, from a bacterial culture through a cyclic voltammetry or chronoamperometry applied to an electrochemically active polymer. Therefore, prokaryotic cells can be detected while eukaryotic cells remain undetected. The infections can include bacterial infections and fungi or yeasts microbial infections.

The invention relates to the field of medicine, namely to biosensor analytical devices, and can be used for quantitative assessment of glucose content in body fluids, namely blood, plasma and serum The device for quantitative assessment of glucose content in body fluids containing a graphite screen printed electrode (1), a surface of which is modified by a hybrid composite (2) having inclusions of glucose oxidase enzyme (4), and the hybrid composite (2) contains an organosilicon matrix (3) made of tetraethoxysilane, and placed in said matrix (3) inclusions of single-walled carbon nanotubes (5), inclusions of a redox-active polymer (6) based on chitosan covalently bound to a Nile blue mediator. The technical effect of the invention is an increase in the operating time of the device for quantitative assessment of glucose content in body fluids without replacing the hybrid composite while maintaining high sensitivity to glucose content in body fluids.

The present invention provides a method for using a capsule release agent and a permanent capsule release agent and preparation method. The method for using the capsule release agent comprises the following steps: S1, heating the capsule to 120-230°C; S2, applying the capsule release agent to the surface of the capsule obtained in step S1; and S3, baking the capsules coated with the capsule release agent obtained in step S2 at 120-230°C. The permanent capsule release agent of the present invention is an active polymer emulsion that is stable under acidic (pH between 4-7) room temperature conditions and can continue to crosslink and form a film at high temperatures. Once the capsule is coated with the permanent capsule release agent, it can be continuously vulcanized hundreds of times. The present invention also adjusts the ratio of the hydrogenated silicone oil emulsion to the silicone resin emulsion. This change in proportions brings substantial improvements to the product, increases production efficiency, and reduces overall production costs for the enterprise.

The utility model discloses an automatic axial adjustment bearing chamber for a rotating shaft of an air suspension blower, which comprises an end face flange and a shell provided with a stepped groove, the end face flange is fixed on the end face of the upper part of the stepped groove, and an elastic body, a bump foil and a flat foil are sequentially arranged at one end of the end face flange facing the stepped groove; a thrust disc is mounted between the flat foil and the bottom surface of the stepped groove; the elastomer comprises an inner gasket, an electroactive polymer and an outer gasket which are sequentially stacked from inside to outside; the electroactive polymer is connected with an external controller through a wire, and the shell is provided with a plurality of displacement sensors used for detecting whether the thrust disc generates axial deviation or not. The device is good in economical efficiency, simple in structure and convenient to assemble. The purpose of automatic axial adjustment of the rotating shaft during working is achieved.

Methoxy polyethylene glycol for use as a medicament, in particular in skin healing, wound healing and treatment of a microbial infection. A method for treating a medical device and / or implant to reduce or eliminate microbial contamination comprises applying a liquid formulation comprising methoxy polyethylene glycol. This invention relates to the novel discovery that methoxy polyethylene glycol, an inactive polymer with no known pharmacological effect, was able to come between microbes and a surface, removing the microbes or releasing the attachment or adherence of the microbes to the surface and thereby improving wound healing significantly, eliminating infections and colonies of microbes.