Synonyms: 1,4-Benzenediol, polymer with 1,1-sulfonylbis4-chlorobenzene and 4,4-sulfonylbisphenol;1,4-Benzonediol, polymer with 1,1’-sulfonylbis[4-chlorobenzene] and 4,4’-sulfonylbis[phenol];1,4-Benzonediol,polymer with 1,1’-sulfonylbis[4-chlorobenzene] and 4,4’-sulfonylbis[phenol];BISPHENOL S-4,4’’-DICHLORODIPHENYLSULFONE-HYDROQUINONE COPOLYMER;bisphenol/ dichlorodiphenylsulfone/ hydroquinone copolymer