The use of PEKK for lowering the CO.sub.2 and H.sub.2S permeability of a part intended to enter into contact with a petroleum effluent. Also, a pipe for transporting a petroleum effluent, including a layer intended to be in contact with the petroleum effluent, wherein the layer intended to be in contact with the petroleum effluent comprises PEKK and has a CO.sub.2 permeability at 130° C. of less than 10.sup.−8 cm.sup.3, for a thickness of 1 cm and a surface area of 1 cm.sup.2 and per second and bar of CO.sub.2 pressure and/or an H.sub.2S permeability at 130° C. of less than 10.sup.−8 cm.sup.3 for a thickness of 1 cm and a surface area of 1 cm.sup.2 and per second and bar of H.sub.2S pressure, the amount of CO.sub.2 and H.sub.2S being measured by GC, respectively. Lastly, a number of methods for manufacturing such a pipe.

A multilayer structure for transporting or storing gas or for exploiting oil or gas deposits under the sea, including, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer, the innermost composite reinforcing layer being welded to the outermost adjacent sealing layer, the sealing layers of a composition including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein at least one of the composite reinforcing layers of a fibrous material in the form of continuous fibers impregnated with a composition including at least one thermoplastic polymer, the thermoplastic polymer having a Tg greater than the maximum temperature of use of the structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C., and a multilayer structure selected from a reservoir, a pipe or a tube for transporting or storing hydrogen being excluded.

The present invention relates to a laminate water barrier which is capable of conducting capacitive currents radially out of the cable thus avoiding breakdown due to induced voltage gradients, comprising a laminate structure comprising a metal foil having a lower and an upper surface area, a first layer of a thermoplastic polymer laid onto and covering the lower surface of the layer of metal foil except for a longitudinal uncovered surface area of the layer of metal foil, and a second layer of thermo-plastic polymer laid onto and covering the upper surface of the layer of metal foil except for a longitudinal uncovered surface area of the layer of metal foil, and wherein the laminate structure is wrapped around the cable core such that the first uncovered surface area of the metal foil faces the cable core and the second uncovered surface area of the metal foil faces away from the laminate structure, and the laminate structure is thermally joined by a heat treatment.

A method of forming a composite panel includes providing an initial composite material, heating the initial composite material, molding the initial composite material to form a preliminary composite panel having a main body connected to an outer edge and a laminate layer secured to the outer edge, and folding an exterior edge portion of the outer edge over an interior edge portion to provide an external folded edge having the laminate layer on at least a portion of an outer surface.

An expandable pipe for restoring a damaged pipe is provided. The expandable pipe includes a liner formed of thermoplastic polyurethane, and grout material applied to the exterior surface of the liner. The exterior surface includes a plurality of flared tips and grooves, and each groove is located between adjacent flared tips. The grout material is disposed on the flared tips and in the grooves of the liner. The method used to restore the damaged pipe includes clamping the liner with the grout material on a puller-sealer fixture having a U-shaped cross-section to prevent debris from entering the interior of the liner, and pulling the puller-sealer fixture and liner through the damaged pipe. The grout material expands in volume upon exposure to moisture, ultra violet radiation, heat, and/or ultrasonics, and fills cracks or other imperfections and voids along the interior surface of the conduit, caused by corrosion, erosion, or other circumstances.

The application relates to a method for producing a double-walled pipe (1) and a pipe (1) of this type, having an outer pipe (3) which is press-fitted with an inner pipe (2) consisting of a corrosion-resistant alloy, wherein an adhesive (4) is inserted at least in regions between the outer pipe (3) and the inner pipe (2), wherein, after adhering the inner pipe (2) with the outer pipe (3), the inner pipe (2) and the adhesive layer (4) are removed at the pipe ends, and the inner side of the outer pipe (3) is plated via an integral connection with the inner pipe (2).

Multilayer Films have a first skin layer that is prepared from a high density polyethylene and a second skin layer (also referred to as the sealant layer) that is prepared from a linear low density polyethylene (LLDPE) having a density of from 0.90 to 0.92 g/cc and a Dilution Index, Yd, of greater than 0°. Seals can be prepared by placing two pieces of this film against each other such that the sealant layers are in contact with each other, then applying heat to at least one high density skin layer such that heat is transmitted/conducted through the multilayer film in a sufficient amount to melt the sealant layer and form a seal. The use of LLDPE having a Dilution Index of greater than 0° has been found to improve the sealing performance of multilayer films in comparison to multilayer films where the sealant layer is a conventional LLDPE having a Dilution Index of less than 0°.

A method of forming a composite panel includes providing an initial composite material, heating the initial composite material, molding the initial composite material to form a preliminary composite panel having a main body connected to an outer edge and a laminate layer secured to the outer edge, and folding an exterior edge portion of the outer edge over an interior edge portion to provide an external folded edge having the laminate layer on at least a portion of an outer surface.

A system and method of scanning an environment and acquiring an image is provided. The system includes a mobile device having a camera and a first position indicator. A scanner having a light emitter and a light receiver is provided. The scanner determining coordinates of surfaces in an environment in response to emitting light with the light emitter and receiving light with the light receiver, the scanner having a second position indicator. One or more processors are provided that determine the position of the mobile computing device and transmits the data between the scanner in response to the first position indicator engaging the second position indicator.

Multilayer Films have a first skin layer that is prepared from a high density polyethylene and a second skin layer (also referred to as the sealant layer) that is prepared from a linear low density polyethylene (LLDPE) having a density of from 0.90 to 0.92 g/cc and a Dilution Index, Yd, of greater than 0°. Seals can be prepared by placing two pieces of this film against each other such that the sealant layers are in contact with each other, then applying heat to at least one high density skin layer such that heat is transmitted/conducted through the multilayer film in a sufficient amount to melt the sealant layer and form a seal. The use of LLDPE having a Dilution Index of greater than 0° has been found to improve the sealing performance of multilayer films in comparison to multilayer films where the sealant layer is a conventional LLDPE having a Dilution Index of less than 0°.