Copolyester(ethylene terephthalate/tetramethylene dibromoterephthalate) a new block polymer

摘要

A novel fire retardant block copolyester, poly(ethylene terephthalate/tetramethylene dibromoterephthalate), is prepared by reacting poly(ethylene terephthalate) and poly(tetramethylene dibromoterephthalate) to form the new block copolyester. Said copolyester finds commercial use as molding compounds for use in the construction, automobile, home appliances, and aircraft industries or as textile products for use as fibers or fabrics.