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2034 results about "Functional polymers" patented technology
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Functional polymers are polymers with advanced optic and/or electronic properties. Advantages of functional polymers are low cost, ease of processing and a range of attractive mechanical characteristics for functional organic molecules. One can adjust properties while keeping material usage low. This opens interesting environmental perspectives. Polymer bound substances can spread their activity without endangering people or the environment. The new REACH legislation will require chemical industry to come up with safe chemicals. Functional polymers can help achieve this goal. Examples of functional polymers are; Semiconducting Conjugated Polymers Stimuli-Responsive Polymers Biomimetic Materials Supramolecular Metallopolymers
Use of sulfur containing initiators for anionic polymerization of monomers
InactiveUS7153919B2Reduced hysteresis lossSilicon organic compoundsLithium organic compoundsElastomerRolling resistance
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.
Owner:BRIDGESTONE CORP
Functional polymer nano composite material and preparation method and uses thereof
ActiveCN101161705AEvenly dispersedStable structureBiocideOther chemical processesEcological environmentPolymer solution
The present invention relates to a polymer nano-composite of the functional inorganic nano-particle with intermingle prepared by electrospinning method, and the use of the composite. The precursory sol of the functional inorganic nano-particle is prepared by the sol-gel method, and is mixed with the polymer solution to form spinning fluid, adding precursor of dopant if necessary, and then the mixed spinning fluid is sprayed on to the electric collecting board with the action of the electric field force by electrospinning method to obtain functional polymer nano-composite with intermingle. The equipment of the invention is simple, the operation is easy, the components, structure and characteristics of the composite is easy to control, the structure is stable, the inorganic nano-particle is dispersed uniformly. According to the difference of the functionality of the inorganic nano-particles, the composite can be used in conducting material, antistatic material, magnetic material, electrochromic material, photocatalysis and ecology environment material, antibiosis material and biomaterial.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Functional polymer film-coated electrode and electrochemical device using the same
ActiveUS20050118508A1Lower performance requirementsImprove battery safetyGel electrodesElectrode carriers/collectorsSlurryPolymer thin films
The present invention provides an electrode in which an electrode active material particles as being interconnected are applied on current collector, wherein the interconnected surface of electrode active material particles is coated with a polymer, the polymer being present as an independent phase, while maintaining a pore structure formed among the interconnected electrode active material particles as well as an electrochemical device including the electrode. Also, the present invention provides a method for manufacturing an electrode coated with a polymer present on an interconnected surface of electrode active material as an independent phase, while maintaining a pore structure formed among the electrode active material particles, which comprises the steps of: (a) coating slurry for an electrode including an electrode active material on a current collector and drying it to form an electrode; and (b) dipping the electrode obtained from step (a) into a solution containing the polymer dissolved therein and a method for manufacturing an electrochemical device comprising the electrode obtained by the above method. The electrode coated with a polymer as an independent phase provides an electrochemical device with improved safety and prevents degradation of performance of an electrochemical device.
Owner:LG ENERGY SOLUTION LTD
Use of sulfur containing initiators for anionic polymerization of monomers
ActiveUS20060030657A1Reduced hysteresis lossSilicon organic compoundsLithium organic compoundsElastomerRolling resistance
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.
Owner:BRIDGESTONE CORP
Acid functional polymers based on benzocyclobutene
InactiveUS6361926B1Improve adhesionExcellent of constantDiazo compound compositionsPhotosensitive materials for photomechanical apparatusImage resolutionSolvent
The invention is a curable cyclobutarene based polymer comprising acid functional pendant groups. The cured polymer displays excellent qualities of toughness, adhesion, dielectric constant, and low stress. The preferred system is soluble in an aqueous base and can be used to generate patterned films with excellent resolution without the need to handle organic developer solvents.
Owner:THE DOW CHEM CO
Water-absorbent adhesive compositions and associated methods of manufacture and use
An adhesive composition is provided that is water-insoluble yet water-absorbent, i.e., capable of absorbing up to 15 wt. % water or more. The composition is composed of a film-forming hydrophilic polymer with at least one linear segment having a plurality of recurring polar groups along the polymer backbone, a complementary multifunctional polymer with a plurality of recurring functional groups that noncovalently bind to the polar groups on the film-forming polymer, and a plasticizer. A method for manufacturing the adhesive composition is provided as well.
Owner:A V TOPCHIEV INST OF PETROCHEM +1
Combination of electrostatic spinning and electrostatic spraying for preparing nanofibre base composite separation membrane
InactiveCN101947415AControl thicknessControl UniformitySemi-permeable membranesFilament/thread formingChemical treatmentPolymer science
Owner:DONGHUA UNIV
Lithium sulfur battery cathode material and preparation method thereof
ActiveCN103258990AIncrease capacityImprove cycle performanceCell electrodesLithium–sulfur batteryLithium sulfur
The invention discloses a lithium sulfur battery cathode material and a preparation method thereof. The lithium sulfur battery cathode material comprises a sulfur / graphene oxide compound, wherein a functional polymer layer and an adhesive layer sequentially cover on the sulfur / graphene oxide compound, and at least partial adhesive in the adhesive layer is crosslinked and combined with at least partial functional polymer material in the functional polymer layer. The preparation method of the lithium sulfur battery cathode material comprises the steps of: mixing powdered sulfur with graphene oxide, and carrying out high-temperature water heating on the mixture to form the sulfur / graphene oxide compound; then, packaging the sulfur / graphene oxide compound by the functional polymer material to obtain sulfur / graphene oxide electrode material covered by the functional polymer material; and mixing the sulfur / graphene oxide electrode material with the adhesive and the like, and carrying out high-temperature vacuum crosslinking reaction to obtain the target product. The lithium sulfur battery cathode material effectively improves the capacity and the cycle performance of an electrode; and the preparation technology of the lithium sulfur battery cathode material is simple and good in controllability, and meets the demand of large-scale production.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Functional Hydrocarbon Polymers and Process for Producing Same
A method of synthesizing a compound of formula (IIIe), comprising a step of reacting a compound of formula (IIIc): A functional polymer of formula (XXXa): The variables in formulas (IIIc), (IIIe), and (XXXa) are defined herein.
Owner:UNIVERSITY OF MASSACHUSETTS LOWELL
Method for the production and configuration of organic field-effect transistors (OFET)
InactiveUS6852583B2Improve performanceCost-effectiveTransistorSolid-state devicesSolubilityPolymer science
The invention relates to an economical and precise method for the production and configuration of an organic field-effect transistor (OFET) whereby the solubility of at least one functional polymer of an OFET is utilized to such a degree, that the functional polymer is deposited on the OFET, or a substrate, by means of a conventional printing process as for a color.
Owner:POLYIC GMBH & CO KG
Preparation of Functional Polymers
The process of the present invention is directed toward conducting highly selective, high yield post polymerization reactions on polymers to prepare functionalized polymers. An embodiment of the present invention comprises conducting click chemistry reactions on polymers. Preferably, the polymers were prepared by controlled polymerization processes. Therefore, embodiments of the present invention comprise processes for the preparation of polymers comprising conducting a click chemistry reaction on a functional group attached to a polymer, wherein the polymer has a molecular weight distribution of less than 2.0. The functional polymers may be prepared by converting an attached functional unit on the polymer thereby providing site specific functional materials, site specific functional materials comprising additional functionality, or chain extended functional materials. Embodiments of the process of the present invention include functionalization reactions, chain extensions reactions, to form mock copolymer linking reactions, and attaching side chains to form graft copolymers, for example.
Owner:CARNEGIE MELLON UNIV
Beads for capturing target cells from bodily fluid
ActiveUS7439062B2Excellently presentingEfficiently separated and isolatedPowder deliveryMicrobiological testing/measurementPolymer scienceCarbamate
Spheroidal beads present an exterior surface of a hydrophilic hydrogel, which is an isocyanate-functional polymer that is polymerized by urethane bonds and cross-linked by urethane and urea bonds. Sequestering agents present at the surface are covalently bound to isocyanate groups or to intermediate linkers that are so bound. These beads allow sequestering agents to retain their native three-dimensional configuration, and as a result of such surface characteristics and hydrophilicity, they achieve highly effective capture of very small subpopulations of rare cells from bodily fluids or the like and very effectively deter nonspecific binding of other biomaterials present in such bodily fluid. They may be all-hydrogel spheroids or hydrogel-coated substrates.
Owner:BIOCEPT INC
Anti-microbial healing-promoting hydrogel dressing and preparation method therefor
ActiveCN103520767AHigh transparencyHigh degree of swellingAbsorbent padsBandagesAdditive ingredientBiocompatibility Testing
The invention discloses an anti-microbial healing-promoting hydrogel dressing and a preparation method therefor. The main ingredients of the dressing are water-soluble high-molecular polymers, functional polymers with pseudoplastic, anti-microbial agents and water. The above ingredients are dissolved into a whole after a series of technologies. The solution is poured into a mold, and the hydrogel dressing is obtained after curing and irradiation disinfection. The results of wound healing experiments and in vitro anti-microbial experiments show that the hydrogel dressing can promote wound healing effectively, and has good bacteriostatic activity to multiple bacteria (the sterilizing rate is above 70%). The anti-microbial healing-promoting hydrogel dressing is better than existing hydrogel dressings obviously, and has advantages of substantial anti-microbial curative effects, transparency, high water content, simple preparation method, pure product, nontoxicity, innocuousness, no stimulation, good biocompatibility and the like. The hydrogel dressing is suitable for large-area promotion and application.
Owner:SAIKE SAISI BIOTECH CO LTD
Isolation of cells or the like from bodily fluids
ActiveUS20060141045A1Excellently presentingEfficient separationPowder deliveryMicrobiological testing/measurementCross-linkRare cell
Spheroidal beads present an exterior surface of a hydrophilic hydrogel, which is an isocyanate-functional polymer that is polymerized by urethane bonds and cross-linked by urethane and urea bonds. Sequestering agents present at the surface are covalently bound to isocyanate groups or to intermediate linkers that are so bound. These beads allow sequestering agents to retain their native three-dimensional configuration, and as a result of such surface characteristics and hydrophilicity, they achieve highly effective capture of very small subpopulations of rare cells from bodily fluids or the like and very effectively deter nonspecific binding of other biomaterials present in such bodily fluid. They may be all-hydrogel spheroids or hydrogel-coated substrates.
Owner:BIOCEPT INC
Functional polymers prepared with sulfur-containing initiators
A method for forming a polymer including a sulfur-containing functional group, the method comprising introducing a sulfur-containing initiator defined by the formulawith conjugated diene monomer and optionally copolymerizable monomer within a polymerization medium and allowing the sulfur-containing initiator to initiate the polymerization of the conjugated diene monomer and the optional copolymerizable monomer, where R1 is a monovalent organic group, R2 is a divalent organic group, R3 is a divalent organic group or a bond, and a is an integer from 1 to about 5.
Owner:BRIDGESTONE CORP
Low odor binders curable at room temperature
InactiveUS20050045294A1Easy to storePromote hydrolysisNon-fibrous pulp additionNatural cellulose pulp/paperPolymer sciencePaper towel
Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an epoxy-reactive polymer, such as a carboxyl-functional polymer, and an epoxy-functional polymer. These binder materials can be cured at ambient temperature over a period of days and do not impart objectionable odor to final product when wetted.
Owner:KIMBERLY-CLARK WORLDWIDE INC
Preparation of functional polymers
Owner:CARNEGIE MELLON UNIV
Initiated chemical vapor deposition of vinyl polymers for the encapsulation of particles
ActiveUS20070104860A1Quality improvementClear processPretreated surfacesChemical vapor deposition coatingGas phaseConformal coating
One aspect of the present invention relates to an all-dry encapsulation method that enables well-defined polymers to be applied around particles of sizes down to the nanoscale. In certain embodiments, the methods are modified forms of initiated chemical vapor deposition (iCVD) using a thermally-initiated radical polymerization to create conformal coatings around individual particles while avoiding agglomeration. The present invention also enables the coating of particle surfaces with a range of functional groups via direct incorporation of the functionality into the monomers used or indirectly through a subsequent modification of the surface of a coated particle. In certain embodiments, the method produces high quality functional polymer coatings.
Owner:MASSACHUSETTS INST OF TECH
Preparation method of electrostatic spinning hydrophobic nanofiber porous membrane for membrane distillation
The invention relates to a preparation method of an electrostatic spinning hydrophobic nanofiber porous membrane for membrane distillation. The method comprises the following steps of: dissolving a hydrophobic functional polymer material in the solvent to get a 1-35wt% polymer spinning solution, performing electrostatic spinning to get a hydrophobic nanofiber porous membrane, and further performing thermal treatment, thereby obtaining the electrostatic spinning hydrophobic nanofiber porous membrane for membrane distillation. The preparation method provided by the invention is simple and practicable, and can be used for conveniently and accurately controlling the thickness and uniformity of the nanofiber membrane and realizing operations of mass production more easily; the high-hydrophobicity nanofiber porous membrane prepared by the preparation method can be used for signally improving the defects of the conventional membrane for membrane distillation that the water flux is low and the membrane pores get wet easily, so that the membrane distillation technology can compete with a reverse osmosis technology in the seawater desalination field.
Owner:DONGHUA UNIV
Low odor binders curable at room temperature
InactiveUS20050045295A1Easy to storePromote hydrolysisNon-fibrous pulp additionNatural cellulose pulp/paperPolymer sciencePaper towel
Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an epoxy-reactive polymer, such as a carboxyl-functional polymer, and an epoxy-functional polymer. These binder materials can be cured at ambient temperature over a period of days and do not impart objectionable odor to final product when wetted.
Owner:KIMBERLY-CLARK WORLDWIDE INC
Cycloaddition functional polymers from (vinyl) polystyrene
A functional polymer having active and stable functional groups useful for separation or reactive processes in chemical manufacture or analysis is disclosed. The polymer comprises repeat units having structures corresponding to cycloaddition products of polymeric 1-(vinylphenyl)ethylene with electron-poor alkenes. A process for preparing the functional polymer does not require radical reactions or the exclusion of oxygen. The properties of the polymeric matrix produced can be adjusted by modifying the polymer. For example, the polymer particle size and shape, porosity, swellability, surface area, and number, type and distribution of functional groups may be controlled.
Owner:ACTIVE MATERIALS
Prepolymers suitable for making ultra-violet absorbing contact lenses
The invention provides a class of actinically-crosslinkable silicone-containing prepolymers which comprise (1) ethylenically-unsaturated groups and (2) UV-absorbing polymeric units, latent UV-absorbing polymeric units, and / or dual photo-functional polymeric units. The prepolymer of the invention can be used to prepare silicone hydrogel contact lenses capable of absorbing UV / visible radiation. The present invention is also related to silicone hydrogel contact lenses made from a prepolymer of the invention and methods for making the contact lenses in a cost-effective way and with high consistency and high fidelity to the original lens design.
Owner:ALCON INC
Fluoropolymer film structures and laminates produced therefrom
InactiveUS7070675B2Easy to useAdhesive processesFilm/foil adhesive primer layersPolymer sciencePolyolefin
Fluoropolymer films which combine the attributes of outdoor durability, chemical resistance and thermoformability with paint-like aesthetics are formed into film structures which have at least one surface coated with a primer of amine functional polymer and an overcoat of a thermoplastic adhesive of acid modified polyolefin. Fluoropolymer films so coated are securely bonded to a variety of thermoplastic substrates forming a laminated film structure which resists delamination when exposed to moisture and humidity.
Owner:EI DU PONT DE NEMOURS & CO
Fluorescence functional polymer nanometer microsphere with dual responsiveness to temperature and pH, preparing method and applications
ActiveCN104017129AWith temperatureFunctionalThermometers using physical/chemical changesFluorescence/phosphorescenceEmulsionFluorescence
The invention relates to a fluorescence functional polymer nanometer microsphere with dual responsiveness to temperature and pH and a preparing method thereof and belongs to the field of polymer materials. According to the method, a traditional composite emulsion microsphere of a fluorescent molecular A is synthesized firstly, and by adoption the synthesized traditional composite emulsion microsphere as a seed and by adoption of a seeded emulsion polymerization method, a polymer with temperature responsiveness and pH responsiveness is introduced into the shell layer of the microsphere, thus preparing a core-shell-structure emulsion microsphere with dual responsiveness to temperature and pH. A fluorescent molecular B with an AIE characteristic is composited into the shell layer of the microsphere so as to obtain the fluorescence functional polymer nanometer microsphere with dual responsiveness to temperature and pH. The nanometer microsphere shows different fluorescent response properties to the temperature and the pH, and therefore the nanometer microsphere has a wide application prospect in the fields of microscopic fluorescence nanoscale thermometers, tumor cell and tissue detection, drug sustained release, and the like.
Owner:JILIN UNIV
Binders curable at room temperature with low blocking
ActiveUS20060014884A1Without imparting objectionable odorEasy to prepareNatural cellulose pulp/paperPaper after-treatmentRoom temperaturePaper towel
Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an azetidinium-reactive polymer, such as a carboxyl-functional polymer, an azetidinium-functional polymer and, optionally, a component useful for reducing sheet-to-sheet adhesion (blocking) in the product. These binder materials can be cured at ambient temperature over a period of days and do not impart objectionable odor to final product when wetted.
Owner:KIMBERLY-CLARK WORLDWIDE INC
Preparation method of flexible polyaniline conductive composite hydrogel material
InactiveCN106832348AImprove electrochemical performanceHigh mechanical strengthFreeze thawingIn situ polymerization
The invention provides a preparation method of a flexible polyaniline conductive composite hydrogel material, and belongs to the technical field of functional polymer materials. According to the method, a flexible conductive material with good mechanical strength and electrochemical property is prepared by utilizing the properties and characteristics of polyatomic acid of phytic acid, by taking the phytic acid as an acid doping agent and a gel crosslinking factor and taking polyvinyl alcohol hydrogel as a skeleton. The method comprises the following steps: dissolving polyvinyl alcohol into water to form a solution and matching the solution with phenylamine and phytic acid at a proportion to form a solution A; dissolving initiating agent ammonium persulfate into water to form a solution B; quickly mixing the solution A and the solution B at a low temperature, so that in situ polymerization is performed on the phenylamine in a polyvinyl alcohol aqueous solution, so as to form phytic acid-doped polyaniline hydrogel; placing the phytic acid-doped polyaniline hydrogel into a refrigerator for freezing, so as to form the flexible polyaniline conductive composite hydrogel material by a cyclic freeze thawing. The flexible polyaniline conductive composite hydrogel material prepared by the method has good electrochemical property, mechanical strength and flexibility; the preparation method is simple, and the cost is low, and the preparation method has wide application prospect in the fields of flexible energy storage materials and biomedicine.
Owner:JIANGNAN UNIV
Method for preparing functional polymer-active carbon composite material for water treatment
InactiveCN101234341AImprove adsorption capacityFix stability issuesOther chemical processesWater/sewage treatment by sorptionMetal ions in aqueous solutionNitrogen gas
The invention discloses a preparation method of functional polymer, in particular to the preparation method of activated carbon composites which is used in water treatment in the technical field of environmental purification material. The procedures of the method are as following: firstly, putting powdered activated carbon materials into nitric acid to stir, wash, filter and dry; secondly, scattering monomer of polymer evenly into solvent to prepare into solution; thirdly, putting the solution obtained from the second procedure into the active carbon processed in the first procedure to stir evenly; fourthly, putting the solution into a sealed container in zero DEG C; filling the container with nitrogen and sealing the container for the solution to make polyreaction; washing up the obtained complexes with ethanol, then drying up the complexes and then obtaining a polymer which is active carbon complexes. The functional polymer which is activated carbon composites prepared by the invention keeps high specific surface, has functionality from polymer, has good adsorption performance to the metallic ion and organic matter in aqueous solution and is a novel composite material for water pollution treatment and environment purification.
Owner:SHANGHAI JIAO TONG UNIV
Low odor binders curable at room temperature
InactiveUS7189307B2Easy to storePromote hydrolysisNon-fibrous pulp additionNatural cellulose pulp/paperPolymer scienceRoom temperature
Owner:KIMBERLY-CLARK WORLDWIDE INC
Polishing pads produced by an additive manufacturing process
Embodiments of the present disclosure relate to advanced polishing pads with tunable chemical, material and structural properties, and new methods of manufacturing the same. According to one or more embodiments of the disclosure, it has been discovered that a polishing pad with improved properties may be produced by an additive manufacturing process, such as a three-dimensional (3D) printing process. Embodiments of the present disclosure thus may provide an advanced polishing pad that has discrete features and geometries, formed from at least two different materials that include functional polymers, functional oligomers, reactive diluents, and curing agents. For example, the advanced polishing pad may be formed from a plurality of polymeric layers, by the automated sequential deposition of at least one resin precursor composition followed by at least one curing step, wherein each layer may represent at least one polymer composition, and / or regions of different compositions.
Owner:APPLIED MATERIALS INC
Preparation method and application of conductive composite based on cellulose sponge
ActiveCN106188630AEvenly distributedSimple processForce measurement using piezo-resistive materialsCellulosePressure sense
The invention discloses a preparation method and application of a conductive composite based on a cellulose sponge, and belongs to the field of functional polymer materials. According to the preparation method, the cellulose sponge is adopted as a base material, the cellulose sponge can fully absorb graphene oxide or / and carbon nano tubes through a physical soaking method, after the sponge is dried, graphene oxide is reduced, and the cellulose sponge conductive composite in which the graphene or / and the carbon nano tubes are evenly dispersed is obtained. Pressure sensing performance testing is carried out on the prepared conductive composite, and it is found that as pressure changes, resistance changes along with the pressure, and under the condition that the pressure is low, the change degree is more obvious, and it is indicated that a flexible pressure sensor prepared under the condition that the pressure is low is sensitive. Compared with an existing metallic oxide sensor of silicon of a semiconductor on the market, the flexible sensor has good application on the aspects of medical detection and the like.
Owner:WUHAN TEXTILE UNIV
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