POLYETHER ETHER KETONE AND METHOD FOR PRODUCING POLYETHER ETHER KETONE

• Main Authors: MURAKAMI YUKO, CHIGA MINORU, SUGA KOICHI, KUMAGAI KO
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a polyether ether ketone having a high crystallization temperature Tc and a method for producing a polyether ether ketone.SOLUTION: Provided is a polyether ether ketone which contains a repeating unit represented by formula (1), has a crystallization temperature Tc of 255°C or more, and satisfies one or both of conditions (A) and (B). (A) The content (a) of fluorine atoms is less than 2 mg/kg. (B) The content (b) of chlorine atoms is 2 mg/kg or more.SELECTED DRAWING: None 【課題】高い結晶化温度Ｔｃを有するポリエーテルエーテルケトン及びポリエーテルエーテルケトンの製造方法を提供する。【解決手段】下記式（１）で表される繰り返し単位を含み、結晶化温度Ｔｃが２５５℃以上であり、下記条件（Ａ）及び（Ｂ）の一方又は両方を満たす、ポリエーテルエーテルケトン。（Ａ）フッ素原子の含有量ａが２ｍｇ／ｋｇ未満である。（Ｂ）塩素原子の含有量ｂが２ｍｇ／ｋｇ以上である。TIFF2023087072000007.tif24154【選択図】なし