| 摘要 |
PROBLEM TO BE SOLVED: To obtain a conductive polyester sheet which has sufficient conductive properties and sufficient mechanical strengths for protecting electronic parts being contents and a low cost and a packaging container for electronic parts such as a carrier tape, etc., comprising the same. SOLUTION: A substrate sheet comprises a polyester composition obtained by blending a polyester (A) as a main component having a main repeating unit composed of ethylene terephthalate with a polyester (B) which is composed of a main acid component being terephthalic acid and a glycol component consisting of 95-20mol.% of ethylene glycol and 5-80mol.% of 1,4-cyclohexanedimethanol. The conductive polyester sheet is a conductive polyester sheet which is obtained by providing at least one side of the substrate sheet with a coating layer composed of a conductive composition containing carbon black. The intrinsic viscosity of the substrate sheet is≥0.60 deciliter/gram and the content of copolymerized diethylene glycol is 1.0-5.0mol.%. COPYRIGHT: (C)2004,JPO |
