公开(公告)号：US20250002638A1

公开(公告)日：2025-01-02

申请号：US18709986

申请日：2022-11-16

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  INSTITUT NATIONAL DES SCIENCES APPLIQUÉES DE LYON ,  VITECH COMPOSITES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE CLAUDE BERNARD – LYON1 ,  UNIVERSITE JEAN MONNET SAINT ETIENNE

Inventor： Christophe Magnier ,  Stéphane Villalonga ,  Martin Jegou ,  Sébastien Livi ,  Jean-François Gerard ,  Jannick Duchet-Rumeau ,  Frédéric Demaret

IPC: C08G59/40 ,  C08J5/24 ,  F17C1/16

Abstract: Embodiments of the disclosure relate to a composition including 70 to 95 parts by weight of an epoxide resin having a viscosity of between 1 and 150 kPa·s at a temperature of between 20° C. and 25° C., and 5 to 30 parts by weight, per 100 parts by weight of resin present in the composition, of a curing agent dispersed in the resin, the curing agent being an ionic liquid containing a phosphonium cation. The disclosure also relates to a semi-finished product or towpreg, including a bundle of fibres and a composition. The disclosure also relates to the use of a composition or of a semi-finished product according to the disclosure for the production of a hydrogen tank, in particular a type IV pressure tank, made of composite material, for the on-board storage of hydrogen gas.