PURPOSE: To produce efficiently the title composition having melt viscosity high enough for blow molding or extrusion molding and excellent impact strength. ;CONSTITUTION: The title composition is obtained by mixing 100 pts.wt. polyester- polyester block copolymer containing a hard segment comprising a crystalline aromatic polyester and a soft segment comprising 5-80wt.%, based on the whole copolymer, lactone compound with 0.01-20 pts.wt. at least monofunctional epoxy compound and 0.001-1 pt.wt. carbodiimide-modified isocyanate compound.;COPYRIGHT: (C)1993,JPO&Japio
展开▼
