320 results about "ETFE" patented technology

An implantable cardiac stimulation lead system for use with a stimulation device includes a lead body preferably having an outer diameter of less than 4 French and formed of a biocompatible material having a Young's modulus of at least 20,000 pounds per square inch. In the lead body, an inner insulator is composed of a suitable polymer such as PTFE or ETFE with an outer peripheral surface formed with a helical groove containing a conductor extending between a proximal connector and a distal tip electrode, and an outer insulator composed of polyurethane or silicone rubber or a combination thereof is positioned around the inner insulator. The lead system may be formed with a lumen for receiving a guidewire longitudinally through the lead body. A pair of insulated conductors may be received in the helical groove, one extending to the distal tip electrode, the other extending to a ring electrode proximally spaced from the distal tip electrode.

A thermoplastic, moldable, millable, extrudable composition of matter involving at least three polymeric components: a fluoroelastomer, an ETFE (ethylene/tetrafluoroethylene alternating copolymer, which may optionally contain one or more comonomers in minor amounts to alter crystallinity and melting temperature) fluoroplastic, and a block fluoropolymer containing at least one fluoroelastomer block and at least one ETFE block. The fluoroelastomer component and optionally the fluoroelastomer portion of the block fluoropolymer are crosslinked in a dynamic vulcanization process. Also disclosed are multilayer articles in which the aforesaid fluoro-TPV is adhered to an ETFE plastic layer. These bonded multilayer objects may include injection-molded parts that are either co-injected with both ETFE and fluoro-TPV layers, or insert molding jobs in which a previously molded ETFE insert is placed into a mold and surrounded by fluoro-TPV; and also multilayer co-extruded products such as hoses in which a fluoro-TPV layer is extruded against an ETFE layer.

To provide an ethylene/tetrafluoroethylene (ETFE) copolymer molded product of which the surface has a high hydrophilicity and which is excellent in the light transmission property; and a method for producing the molded product.

A method for producing an ETFE copolymer molded product comprising a substrate 12 made of a material containing at least 50 mass % of an ETFE copolymer, and a fluorine-doped silicon oxide film 14 formed on the surface of the substrate 12, characterized by supplying electric power between electrodes so that the electrical power density between the electrodes becomes from 0.5 to 1.1 W/cm³ to cause discharge and thus to plasmatize the following mixed gas so as to form the silicon oxide film 14 on the substrate 12:

Mixed gas comprising silicon tetrafluoride, oxygen and a hydrocarbon, wherein the atomic ratio of oxygen atoms to carbon atoms (O/C) is from 1 to 10, and the atomic ratio of oxygen atoms to silicon atoms (O/Si) is from 1.7 to 25.

The present invention relates to improved radiopharmaceutical compositions in sealed containers, where the container closure has an ETFE (ethylene-tetrafluoroethylene copolymer) coating. Also disclosed are kits for radiopharmaceutical preparation using the sealed containers, as well as methods of preparation of radiopharmaceuticals using the sealed containers.

Photovoltaic (PV) crystalline silicon modules and methods of manufacturing wherein the modules contain a non-glass front sheet, upper and lower encapsulate layers, a PV cell layer, an insulating sheet, and a structural back plane comprising an aluminum composite. The front sheet can be comprised of ETFE, the encapsulate layers comprise EVA, and the back plane preferably comprises APA. This particular configuration results in a lightweight PV module that still retains a high power density, and can be readily installed onto rooftops without traditional heavy racking. The PV module may be adhered to the roof using a double sided pressure sensitive adhesive or heat welded.

A fluorine-containing coating composition obtainable by compounding a macromolecular material with an ethylene-tetrafluoroethylene copolymer having an average particle diameter of 1 to 30 μm. The macromolecular material is one occurring as a liquid or in a state dissolved in a solvent at below the melting initiating temperature of the ethylene-tetrafluoroethylene copolymer. Furthermore, a volume ratio between the ethylene-tetrafluoroethylene copolymer and the macromolecular material is 35:65 to 95:5.

An electrical submersible pump (ESP) power cable for use in oil wells is provided, comprising at least two electrical conductors, a first fluoropolymer layer surrounding each of the at least two electrical conductors, an outer metal armouring, wherein the first fluoropolymer layer surrounding each of the at least two electrical conductors is composed of at least one fluoropolymer chosen among ETFE (ethylene tetrafluoroethylene copolymer), PFA (perfluoroalkoxy copolymer), FEP (fluorinated ethylene propylene copolymer) and/or mixtures thereof.

In one embodiment, there is a method for storing fluids in a bag that has an inner lining that is essentially sterilized and essentially free of pyrogen. The method comprises heating the bag that is comprised of a polymeric film to at least approximately 253° Celsius. The polymeric film includes a polymer selected from the group of poly(oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene) (PEEK); polytetrafluoroethylene (PTFE); a perfluoroalkoxy (PFA) polymer; poly(tetrafluoroethylene-co-perfluoromethyl vinyl ether) (MFA); polyperfluoro(ethylene-co-propylene) (FEP); poly(ethylene-alt-chlorotrifluoroethylene) (ECTFE); poly(ethylene-co-tetrafluoroethylene) (ETFE); poly(vinylidene fluoride) (PDVF); tetrafluoroethylene-co-hexafluoropropylene-co-vinylidene fluoride terpolymer (THV); ultra-high molecular weight polyethylene (UHMW PE); (poly(bisphenol A-co-4-nitrophthalic anhydride-co-1,3-phenylenediamine) (PEI); poly(4-methyl-1-pentene) (PMP); and suitable mixtures thereof.

The invention discloses a lithium-ion battery diaphragm with high melting temperature as well as a preparation method thereof. The diaphragm is formed by compounding an ETFE (ethylene-tetrafluoroethylene) microporous membrane and a PE (polyethylene) microporous membrane. The preparation method comprises the following steps: preparing a diaphragm from ETFE and PE respectively by a thermally induced phase separation method, and extracting a diluent by A/B/A three-layer coextrusion curtain coating and compounding as well as bidirectional stretching, thereby preparing the lithium-ion battery diaphragm, wherein the layer A is the ETFE microporous membrane; the layer B is a PE microporous membrane. The lithium-ion battery diaphragm provided by the invention is high in melting temperature and mechanical intensity, is low in obturator temperature, and can practically and effectively improve the safety of the lithium ion battery.

The invention discloses a method for making ethylene-tetrafluoroethylene copolymer. The method adopts a microemulsion system, and the microemulsion comprises deionized water, perfluoro ether oil, perfluoro dispersant and an auxiliary agent. The obtained ethylene-tetrafluoroethylene copolymer has thermal cracking resistance at high temperature, excellent chemical corrosion resistance and outstanding mechanical property.

A processing method of soft solar cell component and its specific steps include: 1) polymer film is evenly paved firstly; 2) cloth substrate is cut into needing size, and is pave on the polymer film; 3) solar cell chips are set into the cloth substrate, and are low-temperature-and-heat-pressure fixed by using laminating machine; 4) the chips are taken out then to carry welding and protection; 5) the fixed solar cell components are paved with their surface downward, and the cloth substrate is paved on the top; 6) using laminating machine, the solar cell components enter hot pressing step to be packed; 7) the components are taken out, and their margins are cut into tidy; 8) outlet line and bandage parts are processed. Through hot-pressing processing and clinging into soft carrier (like cloth substrate) or protective film, the solar cell can be arbitrarily bended and easy to carry. Being covered by ethylene-polytetrafluoroethylene (ETFE) protective film, the production has characters of high dirt resistance, anticorrosion, tensile resistance, collision resistance, heat resistance and insulation.

The invention discloses an anti-ultraviolet heat insulation car film which comprises a PET composite film and an ETFE film layer, wherein the part between the PET composite film and the ETFE film layer is coated with anti-ultraviolet heat insulation slurry, and the parts between the anti-ultraviolet heat insulation slurry and the two layers of films are coated with adhesive. The anti-ultraviolet heat insulation slurry contains an ultraviolet absorbent and heat insulation ingredients such as nanoscale metal oxides, both the PET film and the ETFE film are transparent materials, and the ETFE film has heat preservation performance, so that the anti-ultraviolet heat insulation car film can absorb ultraviolet light and prevent external temperature from influencing in-car temperature.

The invention discloses an ETFE (Ethyl Tetra Fluoro Ethylene) thin film as well as a preparation method and an application thereof. The thin film is made of ETFE and a functional addition agent, and the processing temperature is 170-235 DEG C, wherein the use amount ratio of the ETFE to the functional addition agent is 1: (0.1-30%) in weight percentage; the melt index of the ETFE is 7-30; and the functional addition agent comprises more than any one of a regular fluoroplastic addition agent and a regular engineering addition agent. The ETFE thin film disclosed by the invention has excellent stretchability, non-sticky performance, adsorption, non-toxicity and heat insulation, which reach, and even exceed common indexes of industries; and the ETFE thin film can be used for the fields of LED (Light Emitting Diode) release packages, semiconductor release packages, flexile solar cell packages, electronic release films, medical packages, agricultural thin films and the like.

The invention discloses an X-ETFE (crosslinked ethylene-tetrafluoroethylene) insulating wire or cable with spiral stripe identifications for aerospace and a preparation process for the insulating wire or cable. The preparation process for the insulating wire or cable includes steps of: printing spiral stripe identifications on an insulating layer of an X-ETFE insulating wire directly formed by a single insulating core wire; printing spiral stripe identifications on a sheath layer of an X-ETFE insulating cable formed by a single insulating core wire, a shielding layer and the sheath layer; printing spiral stripe identifications on an insulating layer and/or a sheath layer of an X-ETFE insulating cable formed by a plurality of insulating core wires, the shielding layer and the sheath layer; and printing spiral stripe identifications on an insulating layer and/or a sheath layer of an X-ETFE insulating cable formed by a plurality of insulating core wires and the sheath layer. The insulating core wires consist of conductors and the insulating layers which wrap the conductors. The X-ETFE insulating wire or cable with the spiral stripe identifications for aerospace is easy to be distinguished and identified, convenient to trace back and rapid in checking, and is beneficial to waste wire recovery. In addition, the X-ETFE insulating wire or cable with the spiral stripe identifications for aerospace has excellent high-temperature resistance, low-temperature resistance and radiation resistance, and the mechanical performance of the insulating layer is quite good.

The invention relates to a front plate packaging structure of a solar module. An ETFE (Ethylene Tetra Fluoro Ethylene) fluoroplastic film (5), a first EVA (Ethylene-Vinyl Acetate) film (4), a cell slice (3), a second EVA film (2) and a back plate (1) are sequentially arranged on the upper surface of the solar cell module (6) from bottom to top. Compared with conventional tempered glass, the packaging structure disclosed by the invention has a better optical matched characteristic and not only has an excellent adsorption effect on main spectral response light of the cell slice, but also has a good light transmitting effect on light of which the wavelength is in the range of 320 to 1,200nm, so that the conversion efficiency of the solar module is improved and the packaging loss is reduced.

The invention discloses an ethylene-tetrafluoroethylene (ETFE) copolymer porous membrane and a preparation method thereof. The ETFE porous membrane comprises 10-60 wt% of ETFE resin, 20-90 wt% of diluter and 0-20 wt% of additive. The ETFE porous membrane is prepared by a thermally induced phase separation method. The preparation method comprises the following steps: uniformly mixing the ETFE resin, diluter and additive, dissolving, forming, curing, and extracting to finally prepare the ETFE porous membrane. The ETFE porous membrane prepared by the method comprises a hollow fiber membrane and a flat membrane, wherein the pore size of the membrane is 0.01-1 mu m. The ETFE porous membrane has the advantages of excellent high temperature resistance, strong acid resistance, strong alkali resistance and corrosion resistance, and is applicable to various severe water treatment environments.

The invention discloses a high-fluidity ethylene-tetrafluoroethylene (ETFE) copolymer composition and a preparation method thereof. The composition comprises a first ETFE component and a second ETFE component, the first ETFE component and the second ETFE component have a basically same composition and have different molecular weights, and each of the first ETFE component and the second ETFE component comprises an ethylene repeating unit A, a tetrafluoroethylene repeating unit B and another repeating unit C which can be copolymerized with ethylene and tetrafluoroethylene, wherein a molar ratio of the ethylene repeating unit A to the tetrafluoroethylene repeating unit B is 40/60-40/60; the another repeating unit C is 0.1-5.0% of the total mole of the ethylene repeating unit A and the tetrafluoroethylene repeating unit B; the melt flow index of the composition at 297DEG C under 5kg is 15-150g/10min; and the ethylene-tetrafluoroethylene copolymer resin composition has two melting points, the first melting point is 218-233DEG C, and the second melting point is 245-275DEG C.

The invention discloses a high temperature (150 DEG C) resistant tightly packaged fiber and a preparation process thereof. The fiber is characterized in that: the periphery of a fiber core is provided with a coating layer which is coated by ultraviolet curing acrylate; and the periphery of the coating layer is provided with a tightly packaged outer layer made of an ethylene-tetrafluoroethylene (ETFE) copolymer. According to the preparation process, the fiber core of the fiber is divided into a single mode fiber core and a multimode fiber core, a single mode structure has 9/125 mu m and a multimode structure has 50/125 mu m or 62.5/125 mu m; the coating layer is coated with the ultraviolet curing acrylate, and has the outer diameter of 250 mu m; and the tightly packaged layer is prepared by extruding the high-temperature ETFE copolymer through a single-layer or double-layer thin wall of a high-temperature extruding machine. The invention has the advantages that: the fiber resists high and low temperature ranging from 65 DEG C below zero to 150 DEG C, and a tightly packaged inner layer and the tightly packaged outer layer resist high temperature of 150 DEG C; and the fiber has the characteristics of high strength, bending resistance, impact resistance, ageing resistance, long service life, corrosion resistance, flame retardancy and the like, can provide high-reliability service in a severe environment, and is suitable for high-speed signal transmission under aerospace, electronic and onboard special environmental conditions.