Process for the Manufacture of a Leaktight Bladder of a Type IV Tank, and Type IV Tank

The present invention relates to a process for the manufacture of a bladder (2) of thermoplastic polymer for leaktightness to the gases of a type IV composite tank (1) and to a type IV tank (1) capable of being obtained by this process. The process of the invention comprises a stage of polymerizatio...

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Bibliographische Detailangaben
Hauptverfasser:	BARRAL KATIA, MAZABRAUD PHILIPPE, DOULIN GWENAEL
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LIGHTING MECHANICAL ENGINEERING MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING OF DISTRIBUTING GASES OR LIQUIDS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention relates to a process for the manufacture of a bladder (2) of thermoplastic polymer for leaktightness to the gases of a type IV composite tank (1) and to a type IV tank (1) capable of being obtained by this process. The process of the invention comprises a stage of polymerization of a precursor monomer of said thermoplastic polymer to give said thermoplastic polymer in a rotating mold heated to a working temperature greater than or equal to the melting point of said monomer and lower than the melting point of said polymer, so as to form said bladder (2) by polymerization of said monomer coupled to rotomolding and without melting of the thermoplastic polymer obtained.