PRODUCT OF MELT MIXTURE OF POLYALKYLENE NAPHTHALATES, ITS PREPARATION, MOLDING AND COMPOSITION OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a mixing product of a new polyalkylene naphthalates having excellent heat resistance, mechanical characteristics, transparency and molding property and also to provide its manufacturing method. SOLUTION: The mixture of the polyalkylene naphthalates is obtained by mixing and treating a molten whole aromatic polyester carbonate of >=1 pts.wt. and <=50 pts.wt. and a polyalkylene naphthalate of >=50 pts.wt. and <=99 pts.wt..