Thermoplastic Polymeric Composition with Improved Resistance to Thermo-Oxidative Degradation and Use Thereof for Producing Pipes
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United States of America Patent
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Issued Date -
Feb 9, 2012
app pub date -
Apr 23, 2010
filing date -
Apr 29, 2009
priority date (Note) -
Abandoned
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Abstract
A polyolefinic moulding composition is suitable for producing pipes with improved resistance to thermo-oxidative degradation when these pipes are in extended contact with liquids which contain disinfectants with an oxidative action. Beside thermoplastic polyolefins, the moulding composition additionally contains specific aromatic amines which are liquid under standard conditions as an additive. The invention also relates to a pipe made from the moulding composition and to a process for improving the long-term resistance of water pipework made of plastics to damage by disinfectants with an oxidative action from the water by the use of this moulding composition.
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