JPS6487990A - Plumbing pipe - Google Patents

Plumbing pipe

Info

Publication number
JPS6487990A
JPS6487990A JP62247603A JP24760387A JPS6487990A JP S6487990 A JPS6487990 A JP S6487990A JP 62247603 A JP62247603 A JP 62247603A JP 24760387 A JP24760387 A JP 24760387A JP S6487990 A JPS6487990 A JP S6487990A
Authority
JP
Japan
Prior art keywords
low density
layer
density polyethylene
innermost layer
linear low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62247603A
Other languages
Japanese (ja)
Inventor
Hitoaki Kurumi
Koichi Kato
Koji Nishida
Sadao Nagase
Norihiro Otsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP62247603A priority Critical patent/JPS6487990A/en
Publication of JPS6487990A publication Critical patent/JPS6487990A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve a cracking durability of an inner layer against halogen containing water of low density by using a linear low density polyethylene constituent material having a specific flowing characteristic and density which is obtained by specific copolymerization as an innermost layer material of a feeding pipe. CONSTITUTION: A feeding-draining water pipe is formed from a multi-layer structure having an innermost layer and an outermost layer. The innermost layer is formed from a linear low density polyethylene of which melt flow rate is 0.1 to 5 g/ten minutes, density is lower than 0.93 g/cm<3> and which is obtained by gaseous phase copolymerization method. The outermost layer is formed combining a low density polyethylene of 95 to 99.5 wt.% and a carbon black of 0.2 to 5 wt.%.
JP62247603A 1987-09-29 1987-09-29 Plumbing pipe Pending JPS6487990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62247603A JPS6487990A (en) 1987-09-29 1987-09-29 Plumbing pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62247603A JPS6487990A (en) 1987-09-29 1987-09-29 Plumbing pipe

Publications (1)

Publication Number Publication Date
JPS6487990A true JPS6487990A (en) 1989-04-03

Family

ID=17165964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62247603A Pending JPS6487990A (en) 1987-09-29 1987-09-29 Plumbing pipe

Country Status (1)

Country Link
JP (1) JPS6487990A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03132327A (en) * 1989-10-18 1991-06-05 Mitsubishi Petrochem Co Ltd Molding method for resin pipe
JP2005533978A (en) * 2002-07-23 2005-11-10 ノベオン アイピー ホールディングス コーポレイション Carbon black-containing crosslinked polyethylene pipe with resistance to chlorine and hypochlorous acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03132327A (en) * 1989-10-18 1991-06-05 Mitsubishi Petrochem Co Ltd Molding method for resin pipe
JP2005533978A (en) * 2002-07-23 2005-11-10 ノベオン アイピー ホールディングス コーポレイション Carbon black-containing crosslinked polyethylene pipe with resistance to chlorine and hypochlorous acid

Similar Documents

Publication Publication Date Title
CA2174541A1 (en) Activated carbon oxygen absorber
JPS5710098A (en) Heat exchanger made of aluminum
ES272477U (en) Submersible floatation structure
JPS6487990A (en) Plumbing pipe
JPS5257274A (en) Composite films
JPS56119497A (en) Corrosion resistant heat transfer pipe
JPS5323875A (en) Spiral module for liquid separation
JPS55139555A (en) Gasket
JPS6487989A (en) Plumbing transfer pipe
JPS5729899A (en) Gas cartridge
JPS55126605A (en) Seaside facility for flowing sea water
JPS57148626A (en) Corrosion-proof sheet or tape
JPS55164233A (en) Polyethylene composition for water pipe
JPS6426084A (en) Chlorine water resistant water pipe
JPS57105283A (en) Ultraviolet pasteurizer for water
JPS5715155A (en) Valve configuration of proportional control valve for gas
Amy British Rail helps with Hastings long sea outfall
JPS5685011A (en) Controlling method for flow rate of river water
JPS52120558A (en) Concentration/denitrification tank
JPS56155234A (en) Chlorine water-resistant polyethylene composition
JPS56100677A (en) Film forming method of fluorescent substance
JPS57154398A (en) Welding rod for build-up welding
JPS5291917A (en) Composite material
JPS6426085A (en) Polyethylene based resin pipe
JPS6429437A (en) Water stop sheet for civil engineering