JPS6487990A - Plumbing pipe - Google Patents
Plumbing pipeInfo
- 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
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.%.
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)
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 |
-
1987
- 1987-09-29 JP JP62247603A patent/JPS6487990A/en active Pending
Cited By (2)
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 |
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