Title:
POLYETHYLENE RECTANGULAR PIPE
Document Type and Number:
Japanese Patent JP2002147657
Kind Code:
A
Abstract:
To provide a polyethylene rectangular pipe capable of restoring the original shape after the stress is released in application of high water pressure to an inner part of the pipe.
In this polyethylene rectangular pipe having a rectangular cross section, a synthetic resin drawn sheet or film is laminated over the full extension of each ridge line at an angle to allow the drawing axial direction to intersect each ridge line of the polyethylene rectangular pipe, or the reinforcement fiber is laminated over the full extension of each ridge line at an angle to allow the fiber direction to intersect each ridge line of the polyethylene rectangular pipe.
Inventors:
NAKAMURA TOMOHIRO
Application Number:
JP2000342327A
Publication Date:
May 22, 2002
Filing Date:
November 09, 2000
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
E03F3/04; B32B1/08; B32B7/02; B32B27/32; F16L9/12; (IPC1-7): F16L9/12; B32B1/08; B32B7/02; B32B27/32; E03F3/04
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