FLEXIBLE PIPE - DAIKIN IND LTD

Title:

FLEXIBLE PIPE

Document Type and Number:

WIPO Patent Application WO/2016/060010

Kind Code:

A1

Abstract:

Provided is a flexible pipe which exhibits excellent blister resistance in a high temperature and high pressure environment even if provided with a thick resin pipe. A flexible pipe which is provided with a resin pipe having a thickness of more than 5 mm, and which is characterized in that the resin that constitutes the resin pipe has a CO2 permeability coefficient P(CO2) at 150°C of 20 × 10-9 cm3·cm/cm2·s·cmHg or less, a CH4 permeability coefficient P(CH4) at 150°C of 10 × 10-9 cm3·cm/cm2·s·cmHg or less, a ratio of the CO2 diffusion coefficient D(CO2) to the CO2 solubility coefficient S(CO2) at 150°C, namely D(CO2)/S(CO2) of 3 × 10-5 Pa·m2/s or more, and a ratio of the CH4 diffusion coefficient D(CH4) to the CH4 solubility coefficient S(CH4) at 150°C, namely D(CH4)/S(CH4) of more than 15 × 10-5 Pa·m2/s.

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Inventors:

MURAKAMI SHINYA
INABA TAKESHI
KITAHARA TAKAHIRO
KUWAJIMA YUUKI

Application Number:

PCT/JP2015/078310

Publication Date:

April 21, 2016

Filing Date:

October 06, 2015

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

C08J5/00; F16L11/08; E21B17/01

Domestic Patent References:

WO2010110129A1	2010-09-30
WO2011105428A1	2011-09-01

Foreign References:

US20010021426A1	2001-09-13
JP2013524131A	2013-06-17

Other References: