Unbonded flexible pipe
US10941621B2 · kind B2 · utility
0Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2597/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An unbonded flexible pipe for offshore fluid transportation is disclosed. The pipe includes from inside and outwards a sealing sheath, a pressure armor layer, at least one tensile armor layer, at least one support layer and an extruded external protective polymer sheath. The at least one support layer includes at least one support strip which is helically wound with a winding angle α of at least about 80 degrees to the longitudinal center axis to provide strip windings along the length of the pipe and the at least one support strip includes a thermoplastic vulcanizate (TPV).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.