abstract |
(57) [Abstract] [Purpose] To provide a seamless belt used in an electrophotographic copying machine or the like, which is excellent in durability, particularly in heat aging resistance. [Structure] Thermoplastic Polyalkylene Terephthalate 9 An unstretched seamless belt composed of 7 to 75% by weight and carbon black of 3 to 25% by weight, and having a surface conductivity of the seamless belt of 1 × 10 0 to 1 × 10 13 Ω / □. |