Synonyms: Poly(oxycarbonyloxytetramethylene)(8CI); 1,3-Dioxepan-2-one homopolymer, sru; 1,4-Butanediol carbonatehomopolymer, SRU; 1,4-Butanediol-carbon dioxide copolymer, sru;1,4-Butanediol-carbonic acid copolymer, SRU; 1,4-Butanediol-diethyl carbonatecopolymer, SRU; 1,4-Butanediol-dimethyl carbonate copolymer sru;1,4-Butanediol-diphenyl carbonate copolymer, sru; 1,4-Butanediol-ethylenecarbonate copolymer, sru; 1,4-Butanediol-phosgene polymer, SRU;1,4-Butanediol-triphosgene copolymer, SRU; 1,4-Dibromobutane-potassiumcarbonate copolymer, SRU; Poly(butylene carbonate);Poly(oxybutyleneoxycarbonyl); Poly(tetramethylene carbonate); UB-Carb 100