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8 条记录 (耗时 0.051 秒)

    Flexible laminated plastic pipe having a chlorinated poly(vinyl chloride) hollow core
    6.
    发明授权
    Flexible laminated plastic pipe having a chlorinated poly(vinyl chloride) hollow core 失效
    具有氯化聚（氯乙烯）中空芯的柔性层压塑料管

    公开(公告)号：US07223456B2

    公开(公告)日：2007-05-29

    申请号：US10803247

    申请日：2004-03-18

    申请人： Arthur L. Backman ,  Girish T. Dalal ,  Joseph J. Vontorcik

    发明人： Arthur L. Backman ,  Girish T. Dalal ,  Joseph J. Vontorcik

    IPC分类号： B29D22/00 ,  B29D23/00 ,  B32B1/08

    CPC分类号： B32B1/08 ,  B32B27/08 ,  B32B27/304 ,  B32B27/36 ,  B32B2327/00 ,  B32B2327/06 ,  B32B2367/00 ,  B32B2597/00 ,  F16L9/121 ,  F16L9/133 ,  Y10T428/1379 ,  Y10T428/1393 ,  Y10T428/31797

    摘要： A multi-layered pipe of arbitrary length and cross-section is produced by co-extrusion of a segmented thermoplastic copolyester elastomer (COPE) outer body over the exterior surface of an annular tubular core of CPVC/PVC having a wall thickness, measured in the radial direction, in the range from about 0.95 mm (38 mils) to about 1.375 mm (55 mils). The COPE is cohesively bonded to the annular core coextensively with essentially the entire length of the pipe. Though the COPE is easily degraded in contact with water, and CPVC and blends of CPVC with less than 25% by weight of PVC are typically rigid when extruded as pipe, a laminated pipe of COPE and CPVC/PVC with the specified wall thickness and overall dimensions which in the laminated pipe satisfy an applicable plumbing code (SDR-11 in the U.S.) has essentially the same performance characteristics as commercially available CPVC pipe which is a monolayer and not a laminate.

    摘要翻译： 通过将分段的热塑性共聚酯弹性体（COPE）外体共挤出在具有壁厚的CPVC / PVC的环形管芯的外表面上，产生任意长度和横截面的多层管，其在 在约0.95mm（38密耳）至约1.375mm（55密耳）的范围内。 COPE基本上与管的整个长度共同地粘合到环形芯上。 虽然COPE容易与水接触而降解，但CPVC和小于25重量％的PVC的共混物通常在挤出成管时是刚性的，具有规定的壁厚和整体的COPE和CPVC / PVC的层压管 在层压管中满足适用管道密码（美国的SDR-11）的尺寸具有与作为单层而不是层压板的市售CPVC管基本相同的性能特征。

    Carbon black-containing crosslinked polyethylene pipe having resistance to chlorine and hypochlorous acid
    7.
    发明授权
    Carbon black-containing crosslinked polyethylene pipe having resistance to chlorine and hypochlorous acid 失效
    含有氯和次氯酸的含炭黑交联聚乙烯管

    公开(公告)号：US07255134B2

    公开(公告)日：2007-08-14

    申请号：US10618556

    申请日：2003-07-11

    申请人： Carl M. Mahabir ,  Arthur L. Backman ,  Girish T. Dalal

    发明人： Carl M. Mahabir ,  Arthur L. Backman ,  Girish T. Dalal

    IPC分类号： F16L11/04

    CPC分类号： B82Y30/00 ,  C08K3/04 ,  C08K2201/011 ,  F16L9/12 ,  F16L11/12 ,  F16L2011/047 ,  Y10T428/1393 ,  C08L23/06

    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.

    摘要翻译： 含有小于2重量％的交联聚乙烯（“PEX”）的管或管。 炭黑提供了对氧化剂如氯和次氯酸在水中的改善的抗性。 可以用高密度聚乙烯或氯化聚乙烯的薄管状芯（内层）进一步保护管。 管可以任选地具有氧阻隔层，例如邻近从含碳PEX层径向向外设置的聚（乙烯 - 共 - 乙烯醇）（“EVOH”）。 该管适用于饮用水应用和热水辐射加热系统。

    Crosslinked polyethylene pipe having a high density polyethylene liner
    8.
    发明授权
    Crosslinked polyethylene pipe having a high density polyethylene liner 失效
    具有高密度聚乙烯衬里的交联聚乙烯管

    公开(公告)号：US07086421B2

    公开(公告)日：2006-08-08

    申请号：US10616601

    申请日：2003-07-10

    申请人： Arthur L. Backman ,  Girish T. Dalal ,  Carl M. Mahabir

    发明人： Arthur L. Backman ,  Girish T. Dalal ,  Carl M. Mahabir

    IPC分类号： F16L11/04

    CPC分类号： F16L9/121 ,  C08L23/06 ,  C08L2207/062 ,  C08L2312/00 ,  Y10T428/1393

    摘要： A multilayer PEX pipe having improved resistance to oxidizing agents in water. The pipe has a thin tubular core (inner layer) of high density polyethylene and an outer layer of crosslinked polyethylene. The pipe may optionally have an oxygen barrier layer, such as poly(ethylene-co-vinyl alcohol) (“EVOH”), contiguously disposed radially outward from the PEX layer. The pipe is suitable for potable water applications and for hot water radiant heating systems.

    摘要翻译： 一种具有改善的抗水性氧化剂的多层PEX管。 该管具有薄的管状芯（内层）的高密度聚乙烯和外层的交联聚乙烯。 管可以任选地具有氧阻隔层，例如从PEX层径向向外连续设置的聚（乙烯 - 共 - 乙烯醇）（“EVOH”）。 该管适用于饮用水应用和热水辐射加热系统。