Synonyms: 1,3-Bis(4-fluorobenzoyl)benzene-4,4'-biphenolcopolymer, sru; 1,3-Bis(4-fluorobenzoyl)benzene-4,4'-dihydroxybiphenylcopolymer, SRU; 1,3-Bis(4-fluorobenzoyl)benzene-biphenyl-4,4'-diol copolymer,SRU; PEDEKmK; PK 99; m-Bis-(4-fluorobenzoyl)benzene-biphenol copolymer SRU