Title:
IN-PIPE CONTAMINATION-PREVENTING SLEEVE AND PIPE EQUIPMENT USING THE SLEEVE
Document Type and Number:
Japanese Patent JP2001208286
Kind Code:
A
Abstract:
To provide a sleeve preventing permeation of a contaminant of gasoline or the like so that a synthetic resin-made pipe can be buried even in the contaminated ground.
This sleeve 1 covers the periphery of a pipe. The sleeve 1 is constituted by a five-layer laminated body layered successively by the order of linear low density polyethylene 1a, polyethylene 1b, nylon 1c, polyethylene 1d, and linear low density polyethylene 1e.
Inventors:
HASEGAWA ZENJI
Application Number:
JP2000016669A
Publication Date:
August 03, 2001
Filing Date:
January 26, 2000
Export Citation:
Assignee:
SANESU RUBBER KOGYO KK
International Classes:
F16L58/10; F16L1/024; (IPC1-7): F16L58/10; F16L1/024
Attorney, Agent or Firm:
Eisuke Kishimoto (4 outside)
Previous Patent: WATER CONTACT PART FOR SCALE FORMATION-PREVENTING HOT WATER SUPPLIER AND METHOD OF MAKING IT
Next Patent: ANTICORROSIVE PIPE JOINT
Next Patent: ANTICORROSIVE PIPE JOINT