公开(公告)号：US20140109975A1

公开(公告)日：2014-04-24

申请号：US14144994

申请日：2013-12-31

Applicant: BOREALIS TECHNOLOGY OY

Inventor： Per-Ola HAGSTRAND ,  Perry NYLANDER ,  Mats BÄCKMAN

IPC: C08K5/375

CPC classification number: C08K5/375 ,  C08K5/13 ,  C08K5/3435 ,  Y10T137/0318 ,  C08L23/04

Abstract: The present invention relates to a polyolefin composition comprising a polyolefin base resin and an antioxidant, characterized in that said polyolefin composition has a lifetime of at least 200 h in a test measuring the resistance against ClO2-containing water at 90° C. and at a concentration of ClO2 of 4 ppm wherein the equipment used is according to ASTM F2263-03.The present invention further relates to a pipe comprising the polyolefin composition according to the invention, to the use of the polyolefin composition for the production of a pipe, and to the use of a particularly selected antioxidant for increasing the resistance of a polyolefin composition against degradation caused by contact with ClO2-containing water.

Abstract translation: 本发明涉及包含聚烯烃基础树脂和抗氧化剂的聚烯烃组合物，其特征在于所述聚烯烃组合物在测试在90℃下对含ClO 2的水的抗性的试验中的寿命至少为200小时， 浓度为4ppm的ClO 2，其中使用的设备根据ASTM F2263-03。 本发明还涉及一种包含根据本发明的聚烯烃组合物的管，涉及使用聚烯烃组合物来生产管子，以及使用特别选择的抗氧化剂来增加聚烯烃组合物抗降解性的用途 由与含ClO 2的水接触引起的。