| abstract |
(57) [Summary] [Structure] A modified polyester containing 1 to 30% by weight of an ester-forming sulfonic acid metal salt compound and 1 to 20% by weight of a single-end-capped type polyether compound, based on polyester. Become a polyester film. [Effect] The modified polyester film exhibits excellent adhesiveness, transparency, and curl curl recovery property, and is suitable for packaging, photographic support, general industry, magnetic tape, etc. . |