THERMOPLASTIC VULCANIZATE COMPOSITIONS IN POLYMERIC INNER / PRESSURE SHEATHS OF FLEXIBLE PIPES FOR OIL amp; GAS APPLICATIONS

摘要

In an embodiment, a flexible pipe is provided. The flexible pipe includes a polymeric inner sheath that includes a thermoplastic vulcanizate (TPV) composition, the TPV composition comprising: a rubber and a thermoplastic olefin, wherein a concentration of the rubber is from 20 wt% to 90 wt% based on a combined weight of the rubber and the thermoplastic olefin, and a concentration of the thermoplastic olefin is from 10 wt% to 80 wt% based on the combined weight of the rubber and the thermoplastic olefin; and wherein the TPV composition has at least one of an air permeability of less than 30 barrers at 23°C and a CO₂ permeability of less than 40 barrers at 23°C. In another embodiment, a thermoplastic umbilical hose is provided. In another embodiment, a pipe structure is provided.