POLYESTER BLOCK COPOLYMER COMPOSITION

摘要

: The invention provides an improved polyester block copolymer composition having a rubber-like elasticity, and in particular having good moldability, impact resistance, heat resistance and water resistance. The composition comprises a polyester block copolymer produced from a crystalline aromatic polyester and a lactone in melt-admixture with a polytetramethylene terephthalate and optionally further with at least one epoxy compound.