Abstract: A method for assembling a rigid pipe intended to be placed in a body of water, the rigid pipe including a metallic inner tube, a thermally insulating insulation jacket formed from an assembly of insulating parts and an outer layer. The method includes the steps of providing the metallic inner tube, forming the insulation jacket, and forming the outer layer around the insulation jacket. The method includes a step for providing a plurality of helical insulating parts and a step of mounting the helical insulating parts around the inner tube in order to form the insulation jacket.

Abstract: A method for assembling a rigid pipe intended to be placed in a body of water, the rigid pipe including a metallic inner tube, a thermally insulating insulation jacket formed from an assembly of insulating parts and an outer layer. The method includes the steps of providing the metallic inner tube, forming the insulation jacket, and forming the outer layer around the insulation jacket. The method includes a step for providing a plurality of helical insulating parts and a step of mounting the helical insulating parts around the inner tube in order to form the insulation jacket.

Abstract: A method including the following steps: assembling sections of metal tube end-to-end so as to form an inner tube having a continuous passage for circulation of fluid; positioning a thermally insulating sleeve around each section of metal tube, the thermally insulating sleeve comprising at least one longitudinal groove; introducing a continuous functional line into at least two longitudinal grooves in at least two adjacent sections of tube; and filling in each longitudinal groove in order to cover the continuous functional line.

Abstract: Disclosed is a polymer electrolyte for use in an electrochemical device. Said polymer electrolyte comprises at least one polymer having ion-exchangeable functional groups. The polymer also comprises ionic liquid functional groups. The ion-exchangeable functional groups comprise a polymer-bound anionic group, such as a sulfonate, a carboxylate, and a phosphonate or any anionic surfactant group. Also disclosed is an electrical device that comprises said polymer electrolyte material. Such electrical device preferably consists of a fuel cell, an electrical battery, a super capacitor, an electrochromic window or a solar cell.