POLYETHYLENE TEREPHTHALATE RESIN COMPOSITION AND BIAXIALLY ORIENTED POLYETHYLENE TEREPHTHALATE FILM

摘要

PPROBLEM TO BE SOLVED: To provide a polyethylene terephthalate resin composition whose molding such as film or fiber has a smooth surface durable enough for practical use and a high Young's modulus. PSOLUTION: Needle-shaped calcium silicate particles having an average diameter (D) of 0.01-1.0 m, an average length (L) of 0.1-10 m and an average aspect ratio (L/D) of 4-50 are dispersed in the polyethylene terephthalate resin composition in an amount of 0.1-20 wt.% of the weight of the composition. The biaxially oriented polyethylene terephthalate is obtained by using the composition. PCOPYRIGHT: (C)2006,JPO&NCIPI