| 摘要 |
PURPOSE:To obtain the title film with improved antistatic characteristics and excellent mechanical characteristics, heat resistance, transparency, etc., by making a film from a compsn. prepd. by compounding a specified polyester, a polyethylene glycol and two kinds of alkali metal salt so as to satisfy specified relations. CONSTITUTION:The title film is obtd. from a polyester compsn. prepd by compounding 100 pts.wt. (hereinbelow described as pts.) polyester wherein ethylene terephthalate is a main repeating unit, (a) pts. polyethylene glycol with a wt. average MW of 4,000-50,000, (b) pts. alkali metal salt of an alkyl-sulfonic acid and (c) pts. alkali metal salt of alkylbenzene-sulfonic acid so as to satisfy reactions of formula I-III between a, b and c. This film not only has original mechanical characteristics, heat resistance, chem. resistance, transparency, gas barrier characteristics, etc., but exhibits excellent anti-static properties and adhesiveness. |
