Disclosed herein is a stretched poly(arylene thioether-ketone) film made of a thermoplastic material which comprises (A) 100 parts by weight of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula
 and having a melting point, Tm of 310-380°C, a residual melt crystallization enthalpy, ΔHmc (420°C/10 min) of at least 10 J/g and a melt crystallization temperature, Tmc (420°C/10 min) of at least 210°C, and a reduced viscosity of 0.3-2 dℓ/g as determined by viscosity measurement at 25°C and a polymer concentration of 0.5 g/dℓ in 98 percent by weight sulfuric acid; and optionally, (B) up to 100 parts by weight of at least one of thermoplastic resins and/or up to 15 parts by weight of at least one of fillers. Its production process is also disclosed.  
                            本发明公开了一种由热塑性材料制成的拉伸聚(芳基
硫醚酮)薄膜,该热塑性材料包括 (A) 100 份(重量)熔融稳定的聚(芳基
硫醚酮),该聚(芳基
硫醚酮)的主要递归单元式为
 熔点 Tm 为 310-380°C,残余熔融结晶焓 ΔHmc (420°C/10 min) 至少为 10 J/g,熔融结晶温度 Tmc (420°C/10 min) 至少为 210°C,还原粘度为 0.3-2 dℓ/g (通过在 25°C 下测量粘度确定),聚合物浓度为 0.5 g/dℓ (在 98% 重量的
硫酸中);以及 (B) 最多 100 份(重量)的至少一种热塑性
树脂和/或最多 15 份(重量)的至少一种填料。其生产工艺也已公开。