US 12,466,152 B2
Multilayer structure for transporting or storing hydrogen
Gilles Hochstetter, Colombes (FR); Patrick Dang, Serquigny (FR); and Thibaut Savart, Lacq (FR)
Assigned to ARKEMA FRANCE, Puteaux (FR)
Appl. No. 17/628,973
Filed by Arkema France, Colombes (FR)
PCT Filed Jul. 28, 2020, PCT No. PCT/FR2020/051386
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/019181, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 1908669 (FR), filed on Jul. 30, 2019.
Prior Publication US 2022/0258446 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 1/08 (2006.01); B32B 1/00 (2006.01); B32B 1/02 (2006.01); B32B 5/02 (2006.01); B32B 15/02 (2006.01); B32B 15/088 (2006.01); B32B 27/12 (2006.01); B32B 27/20 (2006.01); B32B 27/34 (2006.01); C08L 77/06 (2006.01); F17C 1/16 (2006.01)
CPC B32B 1/08 (2013.01) [B32B 1/00 (2013.01); B32B 5/02 (2013.01); B32B 15/02 (2013.01); B32B 15/088 (2013.01); B32B 27/12 (2013.01); B32B 27/20 (2013.01); B32B 27/34 (2013.01); C08L 77/06 (2013.01); F17C 1/16 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2262/108 (2013.01); B32B 2439/40 (2013.01); B32B 2597/00 (2013.01); C08L 2205/025 (2013.01); F17C 2203/0604 (2013.01); F17C 2203/0619 (2013.01); F17C 2203/066 (2013.01); F17C 2203/0673 (2013.01); F17C 2203/0675 (2013.01); F17C 2209/2118 (2013.01); F17C 2209/2127 (2013.01); F17C 2209/2154 (2013.01); F17C 2209/221 (2013.01); F17C 2221/012 (2013.01)] 23 Claims
 
1. A multilayer structure selected from a reservoir, pipe or tube, intended for transporting, distributing, or storing hydrogen, comprising, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer,
an innermost composite reinforcing layer being welded to an outermost adjacent sealing layer,
said at least one sealing layer consisting of a composition predominantly comprising at least one semi-crystalline thermoplastic polymer P1i (i=1 to n, n being the number of sealing layers), the Tm of which, as measured according to ISO 11357-3:2013, is less than 280° C., said at least one semi-crystalline thermoplastic polymer of each sealing layer may be the same, and
at least one of said at least one composite reinforcing layer consisting of a fibrous material in the form of continuous fibers impregnated with a composition comprising at least one thermoplastic polymer P2j, (j=1 to m, m being the number of reinforcing layers), said thermoplastic polymer P2j having a Tg, as measured according to ISO 11357-3:2013, greater than the maximum temperature of use of said structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C.