Abstract: The present invention relates to a continuous process for producing an insulated pipe comprising at least one medium pipe, an outer pipe, a layer of at least one polyurethane between the at least one medium pipe and outer pipe and a film tube between the at least one polyurethane and the outer pipe, which comprises at least the steps (A) provision, in a jaw band, of at least one medium pipe and a film tube formed continuously from a film, where the at least one medium pipe is arranged within the film tube in such a way that a gap is formed between the at least one medium pipe and the film tube, (B) introduction of a polyurethane system comprising at least one isocyanate component (a) and at least one polyol (b) into the gap, (C) foaming and allowing to cure of the polyurethane system and (D) application of a layer of at least one material to the film tube in order to form the outer pipe, where the polyurethane system has thixotropic properties.

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: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m to 955 kg/m3.

Abstract: Pipe useful for downhole and transport of hydrocarbon fuel such as oil and/or natural gas is provided that has a non-stick coating adhered to the pipe interior surface, said coating being at least about 50 ?m thick and comprising at least two layers constituting an inner layer and an outer layer adhered to one another, each said layers containing polymer binder and fluoropolymer and being at least about 15 ?m thick, the weight proportion of said polymer binder to said fluoropolymer in said inner layer and in said outer layer but being effective to maintain adhesion between said layers during pressurization and decompression upon said non-stick coating being exposed to the Autoclave Test and the proportion of said fluoropolymer in said inner layer and said outer layer being effective to protect said interior surface during exposure of said non-stick coating to the Acid Soak Test.

Abstract: Process for the production of a flame-retardant plastics piping system which comprises piping components, in particular piping and connecting elements, such as fittings, valves, screw-threaded elements, containers, pumps, and to which, on the exterior surface of the plastics piping system, an intumescent water- or solvent-based coating comprising a crosslinking binder, in particular at least one of the following binders: vinyl acetate, epoxy resin, acrylate, acrylate mixed resin, polyurethane, polyurethane-acrylate, and various fillers, is applied, where a protective layer is applied over the intumescent coating.

Abstract: In a method for making hydraulic tubing a low carbon steel tube suitable for use as hydraulic tubing is coated on its inside surface with zinc phosphate and the outside surface is electroplated. The resulting hydraulic tubing will resist rust on the inside and on the outside during storage.

Abstract: A pipe includes a tubular pipe formed of a metal sheet that is spirally wound such that opposite edges of the metal sheet are joined by a crimped lock seam that extends helically along a length of the tubular pipe. A sealing arrangement includes a helically extending worked surface band extending along the crimped lock seam and to both sides of the crimped lock seam, the worked surface band having a surface roughness that is greater than a surface roughness of unworked surface portions outside of the worked surface band. A helically extending external coating band is applied over the crimped lock seam and bonded to the worked surface band.

Abstract: An insulated article having a first insulation region comprising a first polymeric material and first hollow ceramic microspheres and a second insulation region comprising a second polymeric material and second hollow ceramic microspheres. The first insulation region has a thermal conductivity that is no greater than the thermal conductivity of the first polymeric material and a volumetric heat capacity in a range of 60% to 90% of the volumetric heat capacity of the first polymeric material. The second insulation region has a thermal conductivity that is no greater than 90% of the thermal conductivity of the second polymeric material and a volumetric heat capacity that is less than 60% of the volumetric heat capacity of the second polymeric material. A method for making a composition for insulating an article is also described.

Abstract: A system for producing and transporting crude oil, comprising a well for producing the crude oil; a processing facility for processing the crude oil; and a pipeline traversing at least a portion of the distance between the well and the processing facility, wherein at least a portion of the pipeline travels through an atmosphere having a temperature less than 20° C., wherein the pipeline comprises a coating on an inner surface of the pipeline, and wherein the crude oil comprises a surfactant additive.

Abstract: Disclosed herein is an article having a surface modified to alter its surface tension property and increase resistance to sand abrasion as characterized by a material volume loss of less than 75 mm3 according to ASTM G65-04 Procedure B. In one embodiment of the method, an intermediate layer is first deposited onto a substrate of the article. At least a substrate on the article is protected by a coating layer, which comprises: an intermediate layer adjacent to the substrate with a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils; and a surface layer comprising a lubricant material deposited onto the intermediate layer. The lubricant material infiltrates at least a portion of the pores for the coating to have the desired surface tension depending on the application.

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 composite mandrel includes a filament-wound composite tube, and composite material molded over the filament-wound composite tube. For example, the composite material includes chopped fibers and a matrix of thermoset resin. The chopped fibers are arranged in layers upon the filament-wound composite tube, and the chopped fibers in each of the layers are randomly oriented along first and second orthogonal directions in each of the layers. The composite material includes at least one sheet of the composite material wound over the filament-wound tube, and at least one strip of the composite material wound over the sheet of the composite material and forming a head on the composite mandrel. An internal cavity of the filament-wound composite tube may provide a lumen for the composite mandrel. The internal cavity may be threaded to receive a removable bridge plug.

Abstract: Disclosed is a process for reducing the deposition of asphaltenes, paraffin wax, or inorganic scale in an oil well pipe by providing a system of pipes that convey any flowable medium, such as oil and gas. More particularly the system of pipes is provided with different coatings or linings for the interior and exterior surfaces of such pipes, depending on the environment in which the pipes are used. The pipes may be coated with different materials, which may be of different thicknesses, with various configurations of coatings or linings. Such coating may be on the interior and/or exterior of the pipes.

Abstract: The present invention relates to a system and method for coating the interior surface of a pipe, which coated pipe can then be used in the transmission of corrosive petroleum fluids.

Abstract: This disclosure details methods and techniques for inhibiting natural gas hydrate formation in gas conduits. In one embodiment, an article is provided which comprises (a) a gas conduit defining a gas flow channel; (b) an interior surface of the gas conduit; (c) a hydrate inhibiting coating on the interior surface, wherein the coating comprises: (i) component A, a one- or two-part room temperature vulcanizable polyorganosiloxane composition comprising a surface-treated filler, a condensation catalyst, and a crosslinking agent; and any reaction products thereof; and optionally (ii) component B, a hydrate release-enhancing proportion of at least one polyorganosiloxane comprising one or more silanol or alkoxy-silyl groups and comprising from about 10 weight percent to about 85 weight percent of at least one hydroxy-terminated or alkoxy-terminated polyoxyalkylenealkyl radical; and optionally (iii) any reaction products thereof.

Abstract: Coated pipes have a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3.

Abstract: The hose includes an outer jacket which includes warp and weft fibers made of Vectran®. The process for making the hose, includes: forming an inner liner and coating the exterior thereof with adhesive; weaving, in a twill weave pattern, Vectran® yarn, in a repeating 2-4-2-4-2 pattern in both the warp and the weft directions; extruding polyurethane onto the woven vectran yarn, the polyurethane extending into pillars between the warp and weft yarn, forming an outer liner; inserting the inner liner coated with adhesive within the outer liner; and, pressurizing the inner liner with steam expanding the inner liner and the adhesive into engagement with the Vectran® yarn and polyurethane pillars of the outer liner.

Abstract: A water transmission tubing for controlling the flow of water under pressure comprises a tubular inner liner of generally uniform cross-sectional configuration continuous with the length of the tubing and having an anti-bacterial agent for preventing the growth of bacteria on the inside wall of the tube. The inner liner contains a dispersed slip additive that forms a low friction surface inside the tubing for preventing adherence of slime to the inside of the tubing. The slip additive can comprise a fluoroelastomer, a fluoropolymer, a silicone resinous material, or mixtures thereof. The liner can be a separate inner layer of a multi-layer dripline, a monolayer form of the dripline or the inside of a drip irrigation emitter. The invention is particularly useful in subsurface treatment of wastewater.

Abstract: Provided is a nickel-plated steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the nickel-plated steel sheet for manufacturing a pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on a surface of a steel sheet thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on an inner surface of a pipe formed of a steel sheet thus having corrosion resistance against fuel vapor.

Abstract: This invention relates generally to articles, devices, and methods for gas hydrate mitigation in deep-sea drilling applications. In certain embodiments, hydrate-phobic surfaces are provided that ensure passive enhancement of flow assurance and prevention of catastrophic failures in deep-sea oil and gas operations.

Abstract: An object of the present invention is to provide an exhaust pipe that can lower the temperature of exhaust gases when the exhaust gases having a high temperature pass through the exhaust pipe. The exhaust pipe of the present invention, which allows exhaust gases to flow through the exhaust pipe, comprises a base that contains metal and has a cylindrical shape; and a surface-coating layer that contains a plurality of crystalline inorganic materials and an amorphous binder and is formed on the outer peripheral face of the base, wherein the plurality of crystalline inorganic materials are distributed in the surface-coating layer, in an accumulative manner in a thickness direction, and the amorphous binder has an average thickness of 20 ?m or less at a location nearer the outer peripheral face of the exhaust pipe than a location of the crystalline inorganic materials.

Abstract: This invention relates generally to articles, devices, and methods for gas hydrate mitigation in deep-sea drilling applications. In certain embodiments, hydrate-phobic surfaces are provided that ensure passive enhancement of flow assurance and prevention of catastrophic failures in deep-sea oil and gas operations.

Abstract: A strut (18, 50) includes a fiber-reinforced, elongate composite body (36, 54) and has first and second ends and a metal and/or tubular support (20, 52) at least partially embedded in the composite body (36, 54), where the composite body (36, 54) has first (40, 60) and second ends (42, 62) forming first and second load-bearing end portions of the strut (18, 50). Also a method forms such a strut using a mold (70).

Abstract: Disclosed is a pipe resin composition. The composition comprises a polyethylene pipe resin, a primary antioxidant, and an acid. The composition of the invention has an increased oxidative induction time (OIT) and environmental stress cracking resistance (ESCR).

Abstract: Transport pipe for high viscosity materials, in particular for concrete. The transport pipe includes an inner pipe (10) made of an abrasion-resistant plastic, at least one metallic joint element (12), as well as a reinforcing jacket (14) which envelops at least the internal pipe. In order to ensure a reliable and enduring joint between inner pipe and joint element, it is proposed in accordance with the invention, that the radially projecting collar of the joint element is defined by a ring-shaped end face (20) and by a thereto joined ring step (22) extending radially towards the inside of the pipe and recessed axially from the ring-shaped end face, and wherein the plastic material of the inner pipe (10) engages in the ring step (22) from the inside of the pipe.

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: There is disclosed a non-stick apparatus, comprising a liquid storage or conveyance article comprising a first material; a coating on an internal surface of the article comprising a second material; wherein the second material comprises a critical surface tension value less than 75 mN/m and a hardness value of at least 5 measured on a Moh's scale.

Abstract: A liner for repairing damaged pipes, such as underground sewer or gas pipes is disclosed. The liner comprises a TPU coating on a fibrous mat of non-woven fabric. The TPU coating is a high heat resistance polyester TPU which allows an epoxy resin/amine to be saturated in the non-woven fabric and the cure initiated by the use of steam or hot water. The cured epoxy resin converts the liner from a flexible state to a rigid state as the liner is cured in place inside the pipe. The TPU containing liner may also be used with thermoset resins other than epoxy resins, such as polyester resins and vinyl ester resins.

Abstract: A condenser tube has a superhydrophobic surface. The superhydrophobic surface is produced on steam condenser tubes to achieve an improved runoff of condensation drops. These condenser tubes may be used in steam power generation. The surface of the condenser tube is textured so that the drops of condensation formed can run off well.

Abstract: The present invention relates to a structure comprising (i) a layer or profile (A) composed of a first material, and (ii) a polyolefin layer or profile (B) adjacent to layer or profile (A) which is composed of a composition comprising a base resin comprising a polyolefin, characterized in that the surface of any or both of layer or profile (A) and layer or profile (B) has/have been treated with a composition comprising an organosilicon compound before (A) and (B) are brought adjacent to each other, to a process for the production of such a structure, to an article, in particular a coated pipe, comprising such a structure and to the use of a composition comprising an organosilicon compound as an adhesion promoter in such a structure.

Abstract: A tubular fluid flow device of varying outside dimensions adapted for use in a high pressure, rapidly cycling temperature environment, an isolation ball valve, a ball valve isolation method and a catalyst transfer method. The flow device 10 can have a tubular member 12 having at least one locus 14, 16 of non-uniform outside dimension and an axial flow passage 20 with a uniform inside diameter between opposite end connection elements. A thermal sleeve liner 22 can be disposed about the axial flow passage in a bore 24 formed in the tubular member, wherein the sleeve comprises an outer surface having a thermal barrier coating 26. A pressure-relief passage 28 is provided in fluid communication between the axial flow passage and an interface between an exterior surface of the thermal sleeve liner and an inner surface of the bore.

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: 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: Medical devices and methods for making and using the same. An example medical device includes a slotted tubular member and a coating disposed over the tubular member. The coating may define one or more coating gaps therein.

Abstract: A wear resistant multilayer overlay includes a first layer on at least a surface of an article, and a second layer metallurgically bonded to at least a portion of the first layer. The first layer includes a first continuous metallic matrix and at least one of first hard particles, blocky diamond particles, non-blocky diamond particles, TSP diamond, cubic boron nitride particles, and PCD compacts embedded in the first continuous metallic matrix, wherein the first hard particles are at least one of transition metal carbide particles and boron nitride particles. The second layer includes a second continuous metallic matrix and at least one of second hard particles, blocky diamond particles, non-blocky diamond particles, TSP diamond, cubic boron nitride particles, and PCD compacts, embedded in the second continuous metallic matrix, wherein the second hard particles are at least one of transition metal carbide particles and boron nitride particles. Related methods and articles of manufacture also are disclosed.

Abstract: The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m3 to 955 kg/m3. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

Abstract: A conduit constructed from a coiled wire having an oval or elliptical cross-sectional shape.

Abstract: An object of the present invention is to provide an exhaust pipe in which a peeling of a constituent member does not occur and reliability thereof is excellent, and an exhaust pipe allowing exhaust gases to flow through the exhaust pipe of the present invention includes a heat-releasing layer containing a crystalline inorganic material and an amorphous inorganic material and having infrared emissivity higher than infrared emissivity of a base, wherein irregularities are formed on a surface of the base on which the heat-releasing layer is to be formed.

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 structural component for use in oil, gas, exploration, refining and petrochemical applications in the form of a pipe system is provided. The pipe system contains at least two pipe sections are that fusion bonded together, each pipe section comprises a plurality of layers, an inner layer in contact with the corrosive petroleum product comprising a thermoplastic material, a structural layer comprising a composite material, and an outer layer comprising a fire resistive material. In one embodiment, the pipe system meets level II fire endurance standard according to IMO A 18/Res.753 fire testing protocol.

Abstract: A rotary fibrous insulation product for use as flexible duct media is provided. The fibrous insulation product includes a fibrous insulation pack that is at least partially coated on one major surface with a phosphorus coating layer. The phosphorus coating layer may be formed of one or more phosphorus-containing compound that forms a protective coating over the fibrous pack when sufficient heat is applied. In exemplary embodiments, mono-aluminum phosphate is applied to a major surface of the fibrous pack. The phosphorus-containing compound may be applied to the surface of the fibrous pack in an amount from about 3.0 g P/m2 to about 10.0 g P/m2. In an alternate embodiment, the phosphorus-containing compound is distributed throughout the insulation pack. A flexible insulated duct formed from the fibrous insulation product is also provided. The flexible insulated duct meets the UL-181 Standard flame penetration test without the need for a scrim layer.

Abstract: Stretch-resistant liners for lining pipes, pipes lined with stretch-resistant liners, and methods for lining pipes with stretch-resistant liners. The liners are made from a lamination that includes a sealing layer, a strength layer of stretch-resistant woven material that overlies the sealing layer, a support layer of non-woven resin-impregnated material that overlies the strength layer, and a barrier layer that overlies the support layer. The lamination is rolled into a tube and inverted when inserted into a pipe so that the barrier layer is the layer that abuts the interior wall of the pipe, the support layer underlies the barrier layer, the strength layer underlies the support layer and the sealing layer underlies the strength layer is contacted by materials flowing through the pipe.

Abstract: Disclosed is a pipe made of an iron-base material, having a corrosion prevention layer formed on the surface thereof. The corrosion prevention layer includes a Zn—Sn sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass and the balance composed of Zn. Alternatively, the corrosion prevention layer includes a Zn—Sn—Mg sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass, Mg in a content of more than 0.01% by mass and less than 5% by mass and the balance composed of Zn. Preferably, the sprayed coating of the corrosion prevention layer includes at least any one of Ti, Co, Ni and P, and the content of each of these elements is more than 0.001% by mass and less than 3% by mass.

Abstract: An exhaust pipe paint for application to an exhaust pipe base includes an inorganic glass particle, an inorganic particle, and at least one of an inorganic binder and a precursor of the inorganic binder. The inorganic binder partially softens at a softening temperature of the inorganic glass particle.

Abstract: An exhaust pipe paint for application to an exhaust pipe base includes an inorganic glass particle, an inorganic particle, and at least one of an inorganic binder and an inorganic binder precursor.

Abstract: The present invention provides an insulated pipe comprising a pipe and a composite insulation system, said composite insulation system comprising: (a) a first insulation layer comprising a first insulation material having a thermal conductivity k-factor value of less than 0.023 W/m-K at 38° C.; and (b) at least one additional insulation layer comprising an insulation material having a thermal conductivity k-factor greater than that of the first insulation material and a maximum operating temperature limit less than that of the first insulation layer. The composite insulation system is bonded to an exterior surface of the pipe with the first insulation layer facing towards said exterior surface of the pipe. At least one of said first insulation layer or said at least one additional layer extends continuously about the exterior surface of the pipe. The present invention further provides an insulated pipe for use in an undersea pipeline and an insulated pipe for use in a subterranean pipeline.

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: Sheath which has a general tubular shape, open longitudinally, wherein the transversal cross-section is spiralled and formed by interwoven threads (11, 12); the first threads (11) are multifilament aramide fibre, with high fire resistance and low smoke emission, and the second threads (12) polyetheretherketone (PEEK) monofilament. Optionally, the cover may have a protective covering on its inner and/or outer surface.

Abstract: Compositions and methods for producing multi-layered plastic pipes are described. Some embodiments of the compositions comprise a cross-linkable polymer system (for example, based on either acrylate or epoxy chemistry), a photoinitiator, and one or more additives such as a pigment, an antioxidant, a light stabilizer, or other additive. In an exemplary method of producing a multi-layered plastic pipe, a base pipe, for example comprising cross-linked polyethylene, is conveyed through an oxidizing step in which at least the outer surface of the base pipe is oxidized, through a coating step in which a pre-polymer system is applied to the outer surface of the base pipe and through a curing step in which the pre-polymer is cured to form a layer of the pipe.

Abstract: A fuel pipe for vehicle and ship is described which is equipped by a FIR anion carrier structure with dual-function of both fuel transmitting and fuel saving. The device consists of a fuel pipe covered by a FIR and anion carrier structure which is made from tourmaline or tourmaline and germanium ore powder materials. The powder materials can be either nanoized or non-nanoized materials. The structures of the carrier can be granules set in or on the interior or exterior wall of the pipe, or paste carriers set on the interior or exterior of the pipe. The FIR anion carrier structures can facilitate sufficient combustion by breaking fuel molecular group into pieces, enhance the fuel-saving efficiency, and reduce the percentage of the toxic gas in the exhaust.