发明名称 |
CARBON BLACK-CONTAINING CROSSLINKED POLYETHYLENE PIPE HAVING RESISTANCE TO CHLORINE AND HYPOCHLOROUS ACID |
摘要 |
Pipe or tubing of crosslinked polyethylene ("PEX") containing less than 2% by wt. carbon black provides improved resistance to oxidizing agents such as chlorine and hypochlorous acid in water. The pipe may be further protected with a thin tubular core (inner layer) of high density polyethylene or chlorinated polyethylene. The pipe may optionally have an oxygen barrier layer, such as poly(ethylene-co-vinyl alcohol) ("EVOH"), contiguously disposed radially outward from the carbon-containing PEX layer. The pipe is suitable for potable water applications and for hot water radiant heating systems. |
申请公布号 |
CA2493900(C) |
申请公布日期 |
2012.04.10 |
申请号 |
CA20032493900 |
申请日期 |
2003.07.16 |
申请人 |
NOVEON IP HOLDINGS CORP. |
发明人 |
MAHABIR, CARL M.;BACKMAN, ARTHUR L.;DALAL, GIRISH T. |
分类号 |
F16L11/04;B32B1/08;B32B27/32;C08F255/02;C08K3/04;C08L23/04;F16L9/12;F16L11/12;F16L11/22 |
主分类号 |
F16L11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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