Wasserversorgungsleitung die eine gefärbte Polyethylenharzzusammensetzung enthält

• Main Authors: NODA, MITSUO, NOGAMI, ATSUSHI, OSHIMA, KOTARO, NAKAMURA, MICHIEI, SANO, TOSHIMICHI, MOMOI, YASUTAKA, OTA, TAKAAKI, ABE, YOSHIO, KAWAKAMI, TORU
• Format: Patent
• Language: German
• Published: 26.08.2004
• Edition: 7
• Subjects: BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INORGANIC CHEMISTRY; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

A colored resin composition for water distribution pipes comprising a resin which comprises a polyolefin resin as a main component and a blue fine powder pigment of a composite oxide which is a fine powder, contains elements other than the main metals introduced into the crystal structure, or has been treated mechanochemically and a colored resin water distribution pipe comprising this colored resin composition. The water distribution pipe comprising the colored resin composition which is made of a polyolefin containing a blue pigment as the coloring component shows excellent resistance to water containing chlorine as the bactericide so that discoloration of the coloring component and formation of blisters on the inner face of the pipe by water containing chlorine can be prevented.