81 results about "Active polymer" patented technology

Secondary packaging configured to prevent inadvertent actuation of a device for administering a drug includes a body defining a cavity for at least partially surrounding the device for administering the drug. An active polymer component optionally can be located within an internal compartment of the secondary packaging. The active polymer component can include a mixture of 3 A molecular sieve, a base polymer, and optionally a channeling agent.

The invention provides a surface active polymer as well as a preparation method and application thereof, and belongs to the technical field of functional high-molecular compounds. The surface active functional monomer, N-isopropylacrylamide, acrylamide, [2-(methylacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide, an initiator and water are subjected to a polymerization reaction in a catalyst system, and the surface active polymer is obtained. The surface active polymer prepared by the invention has excellent temperature resistance and salt tolerance, and can realize rapid and reversible conversion of'high-temperature emulsification and low-temperature demulsification 'under temperature stimulation.

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%.

There is provided a wing assembly comprising a fixed wing portion (5), a high lift device (7, 9) connected to the fixed wing portion (5) and a matter dispersion arrangement located in at least one of the fixed wing portions and the high lift device. The matter dispersion arrangement comprises an electro-active polymer (EAP) (20) comprising an elastic polymer (11a) positioned between a first and a second electrode (10, 12) and configurable between a relaxed state in which the first and second electrodes (10, 12) are electrically disconnected from an electrical power source (13) and a compressed state in which the first and second electrodes (io, 12) are electrically connected to an electrical power source (13).

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.

A control surface system is disclosed having at least one body provided on an air vehicle; at least one wing flap for controlling air flow by moving relative to the body located thereon and thus allowing the air vehicle to maneuver; at least one actuator made of an electro-active polymer material located between the body and the wing flap, wherein the actuator changes shape depending on electrical energy and thus triggering the wing flap; at least one holder located on the actuator and attached to the actuator from at least a part; at least one housing on which the holder is removably attached and which can moves together with the holder by way of the action of the actuator.

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 present invention relates to a polyamide-polyimide composite and a preparation method and application thereof, wherein a diamine monomer is dissolved in a soluble polyimide solution, and at least one polymer monomer introducing hydrogen bonding is slowly added to the solution to generate an aromatic polyamide molecular chain, wherein the aromatic polyamide molecular chain is chemically blended with a polyimide molecular chain by in-situ polymerization to obtain a double-chain structure formed by an aromatic polyamide molecular chain containing NH-CO- and a soluble polyimide molecular chain, and the double-chain has an interpenetrating hydrogen bond network structure of the polyamide-polyimide composite. By controlling the molar ratio of the aromatic polyamide molecular chain to the polyimide molecular chain, the thermal expansion coefficient, optical properties and mechanical properties of the polyamide-polyimide composite are regulated to meet the personalized needs of different flexible devices for ultra-low thermal expansion coefficient, high light transmittance, high heat resistance and high organic solvent resistance.

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.

Embodiments of the present disclosure are directed to methods of making a hydrogenated functionalized polymer, including: aging a hydrogenation catalyst for greater than or equal to about 1 day to thereby form an aged hydrogenation catalyst; introducing an anionic polymerization initiator, a conjugated diolefin monomer, and a solvent to a reactor to produce a living polymer via anionic polymerization; reacting at least one silane modifier with the living polymer to produce a functionalized polymer; and hydrogenating the functionalized polymer by mixing the functionalized polymer in the solvent and the aged hydrogenation catalyst and introducing a hydrogen stream. The aged hydrogenation catalyst has a retained degree of activity as compared to the hydrogenation catalyst.

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.

The present application relates to the field of biochip technology, and specifically to a highly active polymer, a biochip, and a preparation method and application thereof. The preparation method of the highly active polymer comprises: preparing pentafluorophenol acrylate with acrylic acid and pentafluorophenol; polymerizing pentafluorophenol acrylate under the action of an initiator to obtain polypentafluorophenol acrylate; subjecting polypentafluorophenol acrylate to an amidation reaction with compound A and compound B to obtain a highly active polymer; wherein compound A contains an azide group and an amino functional group, and compound B contains at least one of an amino group, a carboxyl group, an epoxy group or a cyano functional group. The present application prepares polypentafluorophenol acrylate by homopolymerizing pentafluorophenol acrylate, using polypentafluorophenol acrylate as a polymer platform, and introducing the functional group into the polymer structure through an amidation reaction with organic matter containing different functional groups. The synthesis process is simple and the preparation cost is low.

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.

Provided is a display device, wherein the display device includes a backplane, a control unit on the backplane, a light source between the backplane and the control unit, a transparent electrode connected to the control unit, and a shape control layer on the transparent electrode. The control unit is configured to control a voltage of the transparent electrode. The shape control layer includes an electro-active polymer (EAP).

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.

The present invention discloses a highly sensitive cTnI detection kit and application based on the ROP signal amplification strategy triggered by FFAPO, and the kit includes an electrode, MPA, EDC, NHS, Ab1, BSA, Ab2, GA, potassium methoxide, FFAPO, and LiClO4. The present invention adopts a sandwich structure to introduce cTnI, and connects the initiator glycolic acid of the ROP reaction to Ab2 through an esterification reaction, so that a large amount of ferrocene electroactive polymer is grafted to the electrode surface through the ROP reaction, and successfully establishes a kit for detecting cTnI with high sensitivity and strong specificity. Experiments have shown that the linear range of the detection of the present invention is 1pg / mL to 1μg / mL, the correlation coefficient is 0.997, the detection limit is 57.14fg / mL, the stability reaches 94.8% of the initial value after continuous storage for two weeks, and the anti-interference reaches 96.2% to 103.1%. At the same time, it has good selectivity and reproducibility, which lays a foundation for the later application of cTnI detection in the medical field and early diagnosis of acute myocardial infarction.

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.