IP Library › Granted Patent US 9,677,693
Granted Patent B2
US 9,677,693 · App. 14/383,426 · Granted Jun 13, 2017

Umbilical

Inventors: Jorn Boesten (Echt, NL); Roelof Marissen (Echt, NL)
Assignee: DSM IP ASSETS B.V.
F16L11/02G02B6/4427G02B6/4432H01B7/04H01B7/182H01B7/183H01B7/24H01B7/045
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Quick Facts
Patent No.
US 9,677,693
App. No.
14/383,426
Granted
Jun 13, 2017
Kind
B2
Abstract

The invention relates to an umbilical comprising a plurality of functional elements for providing hydraulic, electrical, signal and chemical functionality thereof, wherein at least some of the said functional elements comprise a fibrous sheath containing high strength polyolefin fibers.

Claims (15)

1. An umbilical comprising a plurality of functional elements for providing hydraulic, electrical, signal and chemical functionality thereof, wherein at least some of the said functional elements comprise a fibrous sheath containing high strength polyolefin fibers.

2. The umbilical of claim 1 wherein the mass % of the fibrous sheath per functional element as calculated with regard to the total mass of said element is at least 0.1 mass %.

3. The umbilical of claim 1 wherein the mass % of the fibrous sheath per functional element as calculated with regard to the total mass of said element is at most 25 mass %.

4. The umbilical of claim 1 wherein the functional elements containing the fibrous sheath have an outer surface, wherein the outer surface is formed by the fibrous sheath.

5. The umbilical of claim 1 wherein the functional elements have a wall comprising a layered structure, wherein the outer layer contains the fibrous sheath.

6. The umbilical of claim 1 wherein the fibrous sheath is coated or impregnated with a thermoplastic, a thermoset or an elastomer.

7. The umbilical of claim 1 wherein the polyolefin fibers are fibers manufactured from homopolymers or copolymers of polypropylene or polyethylene.

8. The umbilical of claim 1 wherein the polyolefin fibers are fibers manufactured from ultrahigh molecular weight polyethylene (UHMWPE).

9. The umbilical of claim 1 wherein the polyolefin fibers have a tensile strength of at least 0.5 GPa.

10. The umbilical of claim 1 wherein the polyolefin fibers have deniers in the range of from 0.5 to 20.

11. The umbilical of claim 1 wherein the polyolefin fibers have a tape-like shape.

12. The umbilical of claim 1 wherein the polyolefin fibers have a tape-like shape with a width of between 1 mm and 600 mm and a thickness' of between 10 microns and 200 microns.

13. The umbilical of claim 1 wherein the fibrous sheath contains a fabric comprising the high strength polyolefin fibers.

14. The umbilical of claim 1 wherein the fibrous sheath contains a woven fabric comprising the high strength polyolefin fibers.

15. The umbilical of claim 1 being a subsea umbilical.

Assignments (3)
CHANGE OF NAME Recorded Mar 17, 2023
From: DSM PROTECTIVE MATERIALS B.V.
To: AVIENT PROTECTIVE MATERIALS B.V.
Reel/Frame 063115/0134 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2022
From: DSM IP ASSETS B.V.
To: DSM PROTECTIVE MATERIALS B.V.
Reel/Frame 061897/0987 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2014
From: BOESTEN, JORN; MARISSEN, ROELOF
To: DSM IP ASSETS B.V.
Reel/Frame 034064/0016 →
Priority Claims (1)
EP 12159089 · Mar 12, 2012 · regional
Continuity (1)
Related Publication 20150034202A1 · Feb 5, 2015