This method for fixing a base with at least one element of a liner (24) of a tank (22) for a pressurised fluid comprising a liner (24) in particular comprises forming at least one element of the liner (24) by rotational moulding or by extrusion blow moulding of a polymer on the walls of a mould, the polymer being heated so as to be malleable, and in particular cooling the polymer so as to secure the second portion (40) of the base (34) to the polymer.
F17C 1/02 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
B29C 41/20 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
3121211), to the outside (14) of the boss (4) and is able to receive therein any fluid outlet connection element (10), the boss (4) forming in one piece an integrated dispensing head.
A multi-layer assembly comprising: i. at least one first layer [layer (L1)] made from a thermoplastic polymer [polymer TL1 ] selected from the group of ethylene-based polymers, polypropylene-based polymers, polyvinyl chloride (PVC) polymers, polyamide polymers and polycarbonate polymers and mixtures thereof; and ii. anchoring elements, wherein said anchoring elements are adhered to said layer (L1) and are projecting from a surface of said layer (L1) and wherein said anchoring elements are made from at least one thermoplastic polymer [polymer Tae], wherein said polymer Tae is equal to or different from the polymer TL1 comprised in layer (L1); and iii. at least one second layer [layer (L2)], wherein said anchoring elements adhered to said layer (L1) are penetrating into said layer (L2) thereby anchoring layer (L1) to layer (L2) and wherein said layer (L2) comprises a thermoset polyurethane foam.
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 7/08 - Interconnection of layers by mechanical means
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 3/08 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
4.
METHOD FOR PREPARING AN ELECTRICALLY CONDUCTIVE ARTICLE
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (France)
RAIGI (France)
Inventor
Perrier, Olivier
Rocle, Dominique
Delacourt, Grégoire
Galiano, Hervé
Mazabraud, Philippe
Descarsin, David
Abstract
The invention relates to a method for manufacturing an electrically conductive article including the following steps: - a dry process step of mixing a powder including at least one thermosetting resin including at least two epoxide groups, a powder compound for hardening said resin, and an electrically conductive filler powder; - a step thermocompressing the mixture of powders obtained during the preceding step in a mould with a shape adapted to the article and at a temperature that is effective for obtaining a recirculation of the resin, at the end of which the electrically conductive article is obtained.
H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (France)
Inventor
Barriol, Jean-Louis
Perrier, Olivier
Mazabraud, Philippe
Nony, Fabien
Abstract
The invention relates to a mould device for a machine for the rotational moulding of a part, that comprises two upper (1) and lower half-tanks, each of said half-tanks being defined by one or more walls (2, 3), wherein the lower (4) and upper inner edges of each half-tank receive a cavity-carrying plate(s) (5) on which are attached one or more upper (8) and lower cavities, the inner surface (10) of the upper (8) and lower cavities defining one or more moulds (11) having a shape corresponding to that of the part(s) to be moulded, and the outer surface (12) of the upper cavity or cavities (8) and of the lower cavity or cavities defining, together with the wall(s) (2, 3) of the upper (1) and lower half-tanks, upper (13) and lower closed chambers. Means (14, 15, 16) are provided for feeding a fluid stream inside the chambers in order to heat the cavities (8), and means (17, 18, 19, 20) different from the means (14, 15, 16) are provided for feeding a fluid stream inside the chambers for cooling the cavities, while means (21, 22, 23) different from the means (14, 15, 16) and (17, 18, 19, 20) are provided for discharging the heating and cooling fluids.
METHOD FOR MANUFACTURING A SEALING BLADDER MADE OF THERMOSETTING POLYMER FOR A TANK CONTAINING A PRESSURIZED FLUID, SUCH AS A COMPOSITE TANK, AND A TANK
A method for manufacturing a polymer bladder providing the internal sealing of a tank in relation to a pressurized fluid which finds itself contained therein, wherein said polymer is a thermosetting polymer, and said method comprises at least one step for polymerizing at least two precursor compounds of said thermosetting polymer produced in a mould in rotation. A tank for storing a pressurized fluid for example an IV type tank comprising said polymer bladder.
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