US 11,958,259 B2
Thermoplastic composite
Majeed Al-Zubaidy, Bristol (GB); Neville Dodds, Bristol (GB); Vineet Jha, Bristol (GB); James Latto, Bristol (GB); and David Finch, Bristol (GB)
Assigned to Baker Hughes Energy Technology UK Limited, Bristol (GB)
Filed by Baker Hughes Energy Technology UK Limited, Bristol (GB)
Filed on Oct. 18, 2022, as Appl. No. 17/968,013.
Application 17/968,013 is a continuation of application No. 16/338,236, granted, now 11,529,781, previously published as PCT/GB2017/052918, filed on Sep. 28, 2017.
Claims priority of application No. 1616706 (GB), filed on Sep. 30, 2016.
Prior Publication US 2023/0030995 A1, Feb. 2, 2023
Int. Cl. B32B 1/08 (2006.01); B29C 53/60 (2006.01); B29D 23/00 (2006.01); B32B 5/08 (2006.01); B32B 27/08 (2006.01); B32B 27/12 (2006.01); B32B 27/30 (2006.01); C08J 5/04 (2006.01); C08K 7/06 (2006.01); D02G 3/16 (2006.01); D02G 3/40 (2006.01); D02G 3/44 (2006.01)
CPC B29D 23/001 (2013.01) [B29C 53/60 (2013.01); B32B 1/08 (2013.01); B32B 5/08 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B32B 27/304 (2013.01); C08J 5/042 (2013.01); C08K 7/06 (2013.01); D02G 3/16 (2013.01); D02G 3/402 (2013.01); D02G 3/447 (2013.01); B32B 2262/0238 (2013.01); B32B 2262/106 (2013.01); B32B 2307/30 (2013.01); B32B 2597/00 (2013.01); C08J 2327/16 (2013.01); D10B 2321/042 (2013.01); D10B 2331/02 (2013.01); D10B 2331/061 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A flexible pipe, comprising:
a pipe layer that comprises:
a first region characterized by a thermoplastic composite comprising a polymer and carbon fibre, wherein carbon fibre is present in a first concentration made by arranging a first plurality of filaments having a first concentration of carbon fibre, commingling polymer filaments and carbon fibre filaments to form a first intimate mixture, and forming first yarns from the first intimate mixture and compressing or extruding first yarns to form a first tape, wherein the first tape is characterized by a first concentration of carbon fibre; and
a second region characterized by one or more of:
a thermoplastic composite comprising a polymer and carbon fibre, wherein carbon fibre is present in a second concentration; and
a polymer composition, wherein the second region is formed by arranging a second plurality of filaments having a second concentration of carbon fibre by commingling polymer filaments and carbon fibre filaments to form a second intimate mixture and forming second yarns from the second intimate mixture;
wherein the pipe layer is formed by:
compressing or extruding the second yarns to form a second tape, wherein the second tape is characterized by a second concentration of carbon fibre; and
applying predetermined amounts of the first tape and the second tape to a pipe body to form a flexible pipe layer.