FLEXIBLE PIPE FOR FLUID TRANSPORTATION

• Main Authors: ISHII KENICHI, KURITA KOZO
• Format: Patent
• Language: English
• Published: 19.01.2012
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a flexible pipe for fluid transportation, having low temperature resistance and excellent flex resistance.SOLUTION: A flexible pipe 1 includes an interlock pipe 3 which is mostly tubular, a resin layer 5, an internal pressure resistance reinforcing layer 7, a band-shaped body pressing layer 9, an axial force reinforcing layer 11, a protective layer 13, etc. In the outer periphery portion of the interlock pipe 3, the resin layer 5 is formed. The resin layer 5 blocks a fluid flowing through the interlock pipe 3. The resin layer 5 includes a polyolefin-based composition, in which more than one copolymers selected from a group composed of (A)ethylene propylene copolymer 60-90 pts.mass, (B) polyolefin and ethylene copolymer (excluding ethylene propylene copolymer) are contained at 10-40 pts.mass.