Patent ID: 8703899

Claim:
A method for producing a polyester, comprising conducting a transesterification reaction of at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2) and a compound represented by the following formula (3) with a diol compound in the presence of a catalyst: wherein Ar is a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R 1 is a group represented by CX 1 Y 1 R 4 , and two R 1 s may be the same or different from each other, R 2 is a hydrogen atom or a group represented by CX 2 Y 2 R 5 , and two R 2 s may be the same or different from each other, R 3 is a hydrogen atom or a group represented by CX 3 Y 3 R 6 , and two R 3 s may be the same or different from each other, X 1 to X 3 are each independently a hydrogen atom, a fluorine atom or R f , Y 1 to Y 3 are each independently a fluorine atom or R f , R 4 to R 6 are each independently a fluorine atom, R f , OR f or an alkyl group having 1 to 6 carbon atoms, and R f is independently a fluoroalkyl group (which may contain an etheric oxygen) having 1 to 4 carbon atoms; wherein Ar is a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R 1 is a group represented by CX 1 Y 1 R 4 , R 2 is a hydrogen atom or a group represented by CX 2 Y 2 R 5 , R 3 is a hydrogen atom or a group represented by CX 3 Y 3 R 6 , R 7 is a perfluoroalkylene group (which may contain an etheric oxygen) having 1 to 5 carbon atoms, X 1 to X 3 are each independently a hydrogen atom, a fluorine atom or R f , Y 1 to Y 3 are each independently a fluorine atom or R f , R 4 to R 6 are each independently a fluorine atom, R f , OR f or an alkyl group having 1 to 6 carbon atoms, and R f is independently a fluoroalkyl group (which may contain an etheric oxygen) having 1 to 4 carbon atoms; and wherein Ar is a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, and R 7 is a perfluoroalkylene group (which may contain an etheric oxygen) having 1 to 5 carbon atoms, and two R 7 s may be the same or different from each other.