申请人:ASAHI KASEI KABUSHIKI KAISHA
公开号:EP3524644A1
公开(公告)日:2019-08-14
Provided is a polyphenylene ether resin composition whose mechanical properties are difficult to be changed through high temperature aging (e.g. 145°C) while heat resistance and mechanical and electrical properties are maintained. When the bend elastic constant of the polyphenylene ether resin composition before aging measured in accordance with ISO-178 in an atmospheric air is taken as 100%, time required for the bend elastic constant to be 115% or more through aging in which the polyphenylene ether resin composition is left at rest at 150°C is 2,000 hours or more; and a shaped article of 12.6 cm in length, 1.3 cm in width, and 1.6 mm in thickness formed from the polyphenylene ether resin composition exhibits a rate of change in chloroform-insoluble content of 15 mass% or less before and after aging in which the shaped article is left at rest for 1,000 hours at 150°C.
本发明提供了一种聚苯醚树脂组合物,其机械性能很难通过高温老化(例如 145°C)而发生变化,但耐热性、机械性能和电气性能却能保持不变。当根据 ISO-178 测量的该聚苯醚树脂组合物在大气中老化前的弯曲弹性常数为 100%时,该聚苯醚树脂组合物在 150°C 下静置老化,使弯曲弹性常数达到 115% 或以上所需的时间为 2,000 小时或更长;以及形状为 12.由聚苯醚树脂组合物形成的长度为 12.6 厘米、宽度为 1.3 厘米、厚度为 1.6 毫米的异型制品在 150°C 下静置 1,000 小时的老化前后,氯仿不溶物含量的变化率为 15 质量%或更低。