Aromatic polyester, liquid aromatic-polyester composition, process for producing aromatic-polyester film, and aromatic-polyester film

摘要

ABSTRACT OF THE DISCLOSURE;An aromatic polyester containing a repeating unit (A) having Formula (a) below; a repeating unit (B) derived from an aromatic dicarboxylic acid, such as terephalic acid; a repeating unit (C) derived from an aromatic amine optionally having a hydroxyl group; and a repeating unit (D) derived from an aromatic diol. The content of (A) is 10 mol % to 20 mol %, the content of (B) is 40 mol % to 45 mol %, the total content of (C) and (D) is 40 mol % to 45 mol %, and the content of (D) is 0 mol % and 15 mol % with respect to a total of (A) to (D). In the Formula (a), Ar¹ is a 1,4-phenylene group, a 2,6-naphthylene group, or a 4,4′-biphenylene group; and at least one hydrogen atom in AO may be each substituted with a halogen atom, an alkyl group, or an aryl group.—O—Ar¹—CO—  (a)