CARBON BLACK-CONTAINING CROSSLINKED POLYETHYLENE PIPE WITH RESISTANCE TO CHLORINE AND HYPOCHLOROUS ACID

PROBLEM TO BE SOLVED: To provide a long-life crosslinked polyethylene pipe. SOLUTION: A pipe or a tube of crosslinked polyethylene ("PEX") containing carbon black of less than 2 wt.% provides improved resistance to oxidants such as chlorine and hypochlorous acid in water. The pipe may be p...

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Bibliographische Detailangaben
Hauptverfasser:	MAHABIR CARL M, DALAL GIRISH T, BACKMAN ARTHUR L
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a long-life crosslinked polyethylene pipe. SOLUTION: A pipe or a tube of crosslinked polyethylene ("PEX") containing carbon black of less than 2 wt.% provides improved resistance to oxidants such as chlorine and hypochlorous acid in water. The pipe may be protected with a thin tubular core (inner layer) of a high density polyethylene or a chlorinated polyethylene. The pipe may optionally have an oxygen barrier layer such as poly(ethylene-co-vinyl alcohol) ("EVOH") continuously disposed radially outward from the carbon-containing PEX layer. The pipe is suitable for a drinking water application and a hot water radiant heating system. COPYRIGHT: (C)2010,JPO&INPIT