Abstract: A low permeability hose system for providing an impermeable length of tube to transfer fluids that is flexible. The low permeability hose system generally includes a hose defining a fluid passage and an impermeable layer attached to the exterior surface of the hose. The impermeable layer is comprised of an aluminum coated heat sealable film that is impermeable to both liquids and gases. A protective layer may be attached to the impermeable layer to protect the impermeable layer from damage.

Abstract: A pipe insulation product including a core of insulating material and a laminate. The core includes a cylindrical outer surface; a cylindrical inner surface; and a wall extending between the cylindrical outer surface and the cylindrical inner surface. The laminate includes a metallized polymeric film sheet layer forming an inner layer, a scrim, a porous media sheet layer, and a polymeric film sheet layer forming an outer exposed layer bonded together via an adhesive. The laminate is coextensive with and bonded to the cylindrical outer surface of the core and the laminate and core are flexible so that the core and laminate can be opened, placed about a pipe, and closed without degrading the laminate.

Abstract: The present disclosure provides a highly heat-resistant multilayer molded article having excellent adhesion between layers and which can be inexpensively produced and easily recycled. The multilayer molded article includes an innermost layer having a first polyarylene sulfide-derived resin composition including 95% to 80% by mass of a polyarylene sulfide-derived resin and 5% to 20% by mass of an olefinic (olefine-derived) elastomer, and an outer layer disposed on an outer-side of the innermost layer, including a second polyarylene sulfide-derived resin composition having 5 to 35 parts by mass of reinforced fibers relative to 100 parts by mass of the first polyarylene sulfide resin composition.

Abstract: Multi-layered co-extruded tubes are provided that include an outer layer including a first semiaromatic semicrystalline polyamide having a melt temperature of about 240° C. to 280° C., and a thermal stabilizer; and an inner layer including a second semiaromatic semicrystalline polyamide having a glass transition equal to or greater than 100° C.

Abstract: Multi-layered co-extruded tubes are provided that include an outer layer including a first semiaromatic semicrystalline polyamide having a melt temperature of about 240° C. to 280° C., and a thermal stabilizer; and an inner layer including a second semiaromatic semicrystalline polyamide having a glass transition equal to or greater than 100° C.

Abstract: A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide moulding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.

Abstract: A multi-layer conduit which can, for example, transport fuels, includes at least one blocking layer and one top layer. The blocking layer can include a thermoplastic fluoroelastomer and/or a thermoplastic fluoroelastomer vulcanisate. A tank filling device can include at least one filling nozzle in which the multi-layer conduit is provided.

Abstract: The present invention relates to in-line coating of a continuously moving substrate, such as a tube or conduit, preferably of the type used for applications such as fire sprinkler piping. The present invention includes a fire sprinkler pipe defining an interior wall surface surrounding an internal pathway. The interior surface is coated with a coating that reduces the degradation of the interior surface and provides a barrier between the interior surface and fluid within the pathway to resist degradation of the interior surface over the life of the tube or conduit.

Abstract: A resin composite hose includes a curved portion at an axial position thereof, and has a multilayer construction including a resin layer having permeation resistance to a transported fluid and serving as a barrier layer, an inner rubber layer and an outer rubber layer. The curved portion has a shape of progressively increasing a circumferential length while being flattened progressively increasingly from a curve beginning end of a perfect circle in cross-section to a curve terminal end or a curve middle portion of a flattened circle.

Abstract: A heat tracing device has one or more heating elements positioned adjacent to a heatable surface, an aerogel high temperature insulation layer adjacent to the one or more heating elements, a low temperature insulation layer adjacent to the aerogel high temperature insulation layer and a locking mechanism effective to fix the position of the low temperature insulation layer to the aerogel high temperature insulation layer.

Abstract: The present invention is directed to an improvement over the flexible composite tubing described in U.S. Pat. Nos. 6,491,779, 6,804,942, and 7,073,978, wherein said improvement provides for void space or otherwise insulating region along the length of the tubing. The present invention is additionally directed to methods for implementing such improvement.

Abstract: A boom section includes a first, a second, a third, and a fourth fiber reinforced thermoset composite material layer and a flex core layer. The first fiber reinforced thermoset composite material layer has glass fibers in a vinyl ester matrix. The second fiber reinforced thermoset composite material layer is disposed over the first composite material layer and has carbon fibers in an epoxy matrix. The flex core layer is disposed over the second composite material layer. The third fiber reinforced thermoset composite material layer is disposed over the flex core layer and has aramid fibers in a vinyl ester matrix. The fourth fiber reinforced thermoset composite material layer is disposed over the third composite material layer and has glass fibers in a vinyl ester matrix.

Abstract: The installation and use of abrasion and corrosion resistant polyolefin and polyolefin blend liners in the production or injection string of a well is shown. The lining is employed for the principal purpose of reducing wear or corrosion on the tubing string or wear on the associated production equipment. In a preferred embodiment of the invention, the polymer liner is characterized by polypropylene material, which is abrasion resistant and which has a coefficient of friction that is lower that the coefficient of friction of metal tubing. Also, disclosed herein are tubular goods and tubular good liners which decrease or eliminate friction and mechanical wear and decrease or eliminate chemical corrosion to the walls of the tubular good. The liners may include a diffusion barrier, an adhesive, and a friction and wear resistant layer.

Abstract: A hose construction adapted for efficiently conveying fluids while extended, but capable of neatly contracting to a fraction of its extended length for storage or transportation, while integrally incorporating lines for electrical requirements. Storage may be within an outer hose and may be triggered via closure of a valve within a nozzle so that negative pressure causes contraction of the folds of the hose. The contracted hose has a length that is a fraction of its normal extended length. The hose construction incorporates a wire reinforcing member which may bias the hose for self-extension and may also function as part of the electrical system. The electrical lines may comprise stranded copper wires to conduct power and/or serve as a remote activation circuit. The hose configuration may have a cover with external folds, which maximizes flow and provides a cushioning outer diameter to prevent damage to the hose.

Abstract: The invention relates to a fluid transport device for incorporating in a structure that is not electrically insulating, in particular being made of a composite and including an electrically resistive tube, with conductive endpieces including means for fastening to said structure, wherein the tube comprises: a central section having resistance of less than 104 ? per meter of length; and two end sections, at least one of which presents effective resistance lying in the range 100 k? to 500 k? and terminating in an end coupling; at least one conductive element electrically connecting a conductive endpiece and an end section having a said effective resistance lying in the range 100 k? to 500 k?, said effective resistance being defined as the value of the resistance of the end section between the central section and the conductive element.

Abstract: Compressed hydrogen gas can be stored and transferred in hollow structures with walls that include at least one layer or interlayer of at least one porous metal, the purpose of the latter being to protect one or more surrounding layers from the damage that can be caused by diffusive flux of hydrogen gas. The masses of hydrogen gas that enter the layer(s)/interlayer(s) of the porous metal(s) are continuously or periodically removed from the interconnected pore space in the layer(s)/interlayer(s) of the porous metal(s) to ensure that the pressure(s) of the hydrogen gas remain(s) low—generally less than or equal to one atmosphere. When the structure that holds compressed hydrogen gas is a cylindrical pressure vessel, pipe or pipeline, a manufacturing technique known as “C-forming” can be used to create a wall that contains at least one layer or interlayer of at least one porous metal.

Abstract: The present invention relates to polyamide/polyolefin blends containing carbon nanotubes. The invention also relates to structures comprising at least one layer of these blends and optionally at least one layer of another material. These structures may be in the form of bottles, tanks, containers, hoses, pipes and vessels of any kind. These structures may be manufactured using the standard techniques for thermoplastics, such as injection moulding, extrusion-blow moulding and coextrusion.

Abstract: An underbody assembly for a vehicular climate control system is disclosed including fluid flow conduits formed of steel coated with polymeric material such as nylon 12. The conduits are continuous between opposite ends free of joints or flexible connection. In one form, the conduit includes branches or connectors formed of polymeric material sealed to the outer polymeric layer of the tube.

Abstract: A sleeved composite pipe or piling structure formed of an elongated polyethylene pipe or tube of high-density polyethylene (HDPE) or another polyethylene material installed over a substantially rigid and incompressible hollow metal pipe or solid wood core having an outer diameter that is the same or slightly larger than a normal inside diameter of the polyethylene pipe or tube when measured in a relaxed state at ambient temperature. The polyethylene pipe or tube is, for example, a HDPE 3408 material formed of virgin PE 3408 resin as specified in ASTM D3350 with UV protection, and the pipe is produced to ASTM A-3408. The metal pipe core can be ferrous or nonferrous pipe.

Abstract: There is provided a method for preparing a plumbing manifold for use in a water system in which the manifold after molding is subjected to cross-linking high energy radiation. The manifold is made by polyethylene or a metallocene polyethylene.

Abstract: A pipe- or tube-shaped article having an innermost layer is disclosed which comprises a polyolefin composition comprising a polyolefin comprising ethylene and an ?-olefin. The article provides long lifetime, highly abrasion-resistant pipes for mining and other transportation uses. Also disclosed are methods for preparing the article and transporting abrasive materials.

Abstract: An expansion hose adapted for smoothing pressure fluctuations in a hydraulic system having an inner tube, a textile reinforcement, and an outer cover. The reinforcement includes a plurality of yarns, which in turn have a plurality of filaments of first fiber material type and a plurality of filaments of second fiber material type, with first fiber type having elongation at break higher than the second fiber type by at least about 4% elongation. The expansion hose may be part of an assembly including at least one fitting, coupling, bracket, hose clamp, or other hose.

Abstract: Polyolefin multilayer pipes consisting at least one of the layers of a ?-nucleated propylene homopolymer and/or ?-nucleated copolymers from 90.0 to 99.9% by weight of propylene and 0.1 to 10.0% by weight of ?-olefins. The pipes are to be classified in ring stiffness class ?4. The pipes are suitable for non pressure pipe applications, preferably for outdoor use, for above as well as underground drainage and sewerage pipe systems, surface water pipes, pipes for cable protection, pipes for cold climate conditions and for indoor use, soil and waste water pipes.

Abstract: The invention relates to a hose made of a thermoplastic polymer comprising a core and a cover provided with a reinforcement, in particular in the form of a multilayer reinforcing structure, wherein each core and cover consists of a thermoplastic polymer and wherein, according to the invention, an intermediate coupling layer is incorporated into the core and/or cover material by welding and is connected in the form of a reinforcement. The appropriated variants of the embodiment of the intermediate coupling layer are also enclosed.

Abstract: This invention provides double-skin tubular structural members having fiber-reinforced polymer outer tubes, steel or otherwise generally metallic inner tubes and generally a bound aggregate such as concrete in between the tubes.

Abstract: An improved method and system of deploying a pipeline for fiber optic sensing applications. A plurality of pipe sections (11) are provided each having an internal pipe (13) surrounded by material layer(s). Opposed ends (17A) of each pipe section have a portion of the surrounding layer(s) removed or omitted. A tubular member (19) extends lengthwise along each pipe section within the surrounding layer(s) and has free ends (19A) that extend from respective terminal walls (20A) of the surrounding layer(s). Adjacent pipe sections are joined together. The tubular members of adjacent pipe sections are joined together to form a conduit that extends along the pipeline. The conduit is adapted to carry one or more fiber optic waveguides therein. At least one second layer of material is applied to the area between the joined pipe sections. The surrounding layer and the at least one second layer provide for insulation and/or protection of the internal pipes of the pipeline.

Abstract: A heat-resistant rubber hose for a diesel engine is provided, which is excellent in exhaust gas water resistance (acid resistance), heat resistance, flame resistance and low-temperature property. The heat-resistant rubber hose includes a tubular inner layer (1) and an outer layer (2) provided on an outer peripheral surface of the tubular inner layer (1), the inner layer (1) being composed of an inner layer material essentially including the following components (A) and (B) and free from an acid acceptor, the outer layer (2) being composed of an outer layer material essentially including the following components (A) to (C): (A) an ethylene-vinyl acetate copolymer rubber (EVM); (B) an organic peroxide crosslinking agent; and (C) at least one of a metal hydroxide and a surface-treated metal hydroxide.

Abstract: A flexible tubing having a PEX inner core is surrounded by a reinforcing structure, such as a braid. The reinforced flexible tubing meets NFPA Standards for the Installation of Sprinler Systems (13/13R/13D) in both residential and commercial buildings. The reinforced flexible tubing is suitable for a variety of other high temperature/high pressure applications. The tube's flexible characteristics facilitate its installation at a greatly reduced cost, especially in retrofitting existing structures. An adhesive can be used to improve the overall strength and stability of the reinforcing structure surrounding the PEX core. Optionally, a protective outer layer can be applied over the reinforcing structure.

Abstract: An elongated product is formed such that first a core is formed, the outer surface of the core being made of plastic. Thereafter, a tubular metal layer is extruded such that the layer is seamless. When the metal layer is extruded, a clearance (16) is allowed between the metal layer and the core.

Abstract: The present invention relates to a PVC-free tube (100) for medical purposes comprising three layers (101, 102, 103) arranged one above another, wherein each of these layers contains a polyolefin, and wherein the inner layer (102) also contains at least 60% of a thermoplastic elastomer. The present invention further relates to a tube system comprising several tubes according to the invention, which are connected via connectors. The tube according to the invention makes it possible for the conveyance rate loss, for example in an extracorporeal blood circulation, to be less than 15%, preferably less than 10%.

Abstract: A flexible, high pressure, tubular storage vessel for storing and dispensing a compressed gas. The vessel has a gas impermeable inner core member comprising a flexible material and defining an inner diameter of a fluid-carrying channel adapted to store the compressed gas. A flexible reinforcing material is circumferentially disposed about the inner core member. The flexible reinforcing material is surrounded by an air-tight gas barrier wrapping defining an outer diameter. The vessel is configured to be coiled or shaped having a plurality of bends. The bend areas may have a variable inner diameter and are preferably provided with additional reinforcing material.

Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.

Abstract: A molded spiral reinforced tubing suitable for use in an implantable medical device includes a molded inner layer comprised of an elastomeric material. The molded inner layer includes an inner surface having an inner diameter that defines a lumen and further includes an outer surface having an outer diameter. The outer surface includes one or more recessed pathways formed therein. A continuous reinforcement element is provided within each of the one or more recessed pathways. A molded outer layer comprised of an elastomeric material includes an inner surface having an inner diameter and an outer surface having an outer diameter. The inner surface of the outer layer substantially conforms with the reinforcement element and the outer surface of the inner layer.

Abstract: The present invention relates to a pipe, especially an oil pipe, having a lining comprising a fluoropolymer adhered to its interior surface and a lining formed on its exterior surface. The interior and/or exterior lining may comprise a primer layer comprising a fluoropolymer, and preferably a perfluoropolymer and an overcoat or a preformed film adhered to the primer layer. Either the overcoat or the preformed liner also comprises a fluoropolymer, and preferably a perfluoropolymer. The surface of the lining facing the flowable media, such as oil, may be a pure perfluoropolymer to provide a particularly good non-stick surface for the oil.

Abstract: A hose assembly includes a tubular inner core, a high-temperature thermal insulator disposed about the inner core and in substantially continuous contact therewith, a sealing layer substantially surrounding the thermal insulator, and an outer reinforcing layer. The insulator may be a refractory paper tape braided or helically wrapped about the inner core, and may be multiple layers thick. The sealing layer, which may be a polymeric fluorocarbon tape, substantially surrounds the thermal insulator and protects the thermal insulator from chemical degradation. The outer reinforcing and sealing layer may be integrated. Alternatively, the outer reinforcing layer may be applied about the sealing layer, for example via braiding. A coupling may be attached at one end of the hose assembly to connect the hose assembly to a fluid system.

Abstract: Methods and systems for a flexible hose assembly are provided. The flexible hose assembly includes a core tube including a substantially fluid-impervious body including an inner surface and an outer surface, and an aramid sleeve including aramid yarn, the aramid sleeve circumferentially covering the core tube.

Abstract: A multi-layer piping for conveying and heating a fluid, in particular an aqueous urea solution including a fluid conveying pipe comprising a thermoplastic elastomer, a heating element, a sealing element, an insulating layer and an anti-abrasive layer. Preferably, it is used a polyolefin matrix based thermoplastic elastomer in which is intimately dispersed a dynamically vulcanised and EPDM based elastomeric phase.

Abstract: A liner or core pipe which is suitable for insertion into a host pipe, the core pipe including, in certain aspects, a pipe made of temperature-resistant corrosion-resistant material and having an outer surface, an inner surface, a first end and a second end and a flow channel therethrough from the first end to the second end; first and second strengthening wraps around the pipe; a plurality of spaced-apart pulling tapes on the pipe; the pipe deformable to facilitate insertion into a host pipe, and a protective outer wrap on the pipe. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeability to salt water so as to protect the oil pipe from corrosion.

Abstract: A fuel hose for a fuel pipeline in an motor vehicle has a multilayer structure including a resin barrier layer having low permeability to fuel, an outer rubber layer laminated on an outer side of the barrier layer and an inner rubber layer laminated on an inner side of the barrier layer and defining an inner surface layer of the fuel hose. The multilayer structure is formed throughout an entire length of the fuel hose. A rubber hardness of the inner rubber layer is higher than a rubber hardness of the outer rubber layer.

Abstract: A filler pipe, wherein a flow path for a fluid is formed through multiple resin materials being extruded simultaneously and wherein a corrugated part is shaped through peaks and valleys disposed continuously, comprises an outer layer formed from a high density polyethylene, a barrier layer formed from EVOH with superior resistance to fuel permeation, and an inner layer, formed from high density polyethylene. The structure is such that d<L when the depth from the apex of the peak to the bottom of the valley is defined as d, and the distance from the apex of the peak to the barrier layer is defined as L.

Abstract: A fuel tank filler neck apparatus includes a filler neck and a filler neck component mounted in a fuel-conducting passageway formed in the filler neck. The filler neck component could be a fuel tan inlet check valve or a closure cap mount.

Abstract: The present invention provides a flowable material container assembly having a membrane tube disposed coaxially within a port tube. The membrane tube has an outer layer, a core layer, and an inner layer. The outer layer is a blend of a polyolefin and a thermoplastic elastomer. The core layer is a blend of a polyolefin and a thermoplastic elastomer. The inner layer is a blend of a polyolefin, a radio frequency susceptible polymer, and a thermoplastic elastomer.

Abstract: A semi-aromatic polyamide resin is provided which has a high level of residence stability, hot-water resistance and chemical resistance and is also excellent in adhesive properties and compatibility with other resins and the like. The semi-aromatic polyamide resin comprises: dicarboxylic acid units in which 50 to 100 mol % of the dicarboxylic acid units are aromatic dicarboxylic acid units; and diamine units in which 60 to 100 mol % of the diamine units are aliphatic diamine units having 9 to 13 carbon atoms. Furthermore, at least 10% of terminal groups of molecular chains of the polyamide resin are blocked with a terminal-blocking agent, and the amount of terminal amino groups of the molecular chains is 60 ?eq/g or more and 120 ?eq/g or less. In addition, [NH2]/[COOH]?6 is satisfied, where [NH2] (?eq/g) represents the amount of the terminal amino groups and [COOH] (?eq/g) represents the amount of terminal carboxyl groups.

Abstract: The present invention relates to ventilation tubing comprising, from the inside to the outside, a bush (1), an insulating layer (2) and a cover sheet (3). Said ventilation tubing is characterized in that the insulating layer is a quartz fiber wool of which the specific surface weight illustratively is between 65 and 140 g/m2. The bush (1) and/or the cover sheet (3) may be a plastic sheet exhibiting a weave of interlacing filaments. In particular the present invention applies to aircraft ventilation circuit tubings.

Abstract: A resin fuel pipe has component layers made of thermoplastic resins and high heat resistance sufficient to withstand a hot environment in, for example, an engine compartment. The resin fuel pipe includes a pipe body 10 made of a thermoplastic resin, a first heat-resistant, protective resin layer 12 made of a foam thermoplastic elastomer and coating the pipe body 10 and a second heat-resistant, protective resin layer 14 made of a fire-retardant thermoplastic elastomer and coating the first heat-resistant, protective resin layer 12.

Abstract: The present invention relates to a flexible hose, preferably a charge-air hose for automotive vehicles, comprising at least one corrugated portion and a substantially tubular portion which is arranged at least sectionwise within the corrugated portion. In order to facilitate the mounting of such hoses, the present invention is so conceived that the corrugated portion is formed integrally with the tubular portion, and that the tubular portion is introduced, from an extended position in which the corrugated and the tubular portion are arranged in succession, into the corrugated portion by turning said tubular portion outside in.

Abstract: Electrospun nanofiber incorporating a binder (e.g., biotin) is used in the form of a nonwoven or composite with a substrate. The nonwoven and composite can be joined to biosensor, e.g., by binding the biotin to streptavidin and binding streptavidin to biotinylated detector, and because of the high surface area to volume of electrospun nanofiber provides increased sensitivity.

Abstract: The invention relates to a multilayer tube comprising (from the inside to the outside of the tube): an optional layer (C1) consisting of at least one fluorinated polymer; a layer (C2) consisting of at least one radiation-grafted fluorinated polymer which is optionally mixed with at least one fluorinated polymer; an optional layer (C3) of adhesive binder; a layer (C4) consisting of at least one polyolefin or a mixture of at least one polyolefin with at least one functionalised polyolefin; a barrier layer (C5) consisting of a metal shield or comprising EVOH or a mixture based on EVOH, a PVDF or a PGA; and an optional layer (C6) consisting of at least one polyolefin.

Abstract: A resin composite fuel hose of a multilayer construction includes a resin layer as a barrier layer having a fuel permeation resistance, an inner rubber layer as an inner surface layer laminated on an inner side of the resin layer and an outer rubber layer laminated on an outer side of the resin layer. The outer rubber layer has a rubber hardness degree equal to or greater than that of the inner rubber layer, and the inner rubber layer has a permanent elongation equal to or less than 90%.