公开(公告)号：KR1020040051808A

公开(公告)日：2004-06-19

申请号：KR1020020079480

申请日：2002-12-13

Applicant: 도레이첨단소재 주식회사

Inventor： 김상필 ,  박병식 ,  문기정 ,  오상덕 ,  김정원

IPC: C08J5/18

Abstract: PURPOSE: A heat shrinkable polyester-based film is provided, to prevent the folding of terminal parts, the generation of wrinkle after shrinkage and the twisting. CONSTITUTION: The heat shrinkable polyester-based film comprises a polyester copolymer resin comprising terephthalic acid or dimethyl terephthalate as a dicarboxylic acid component, ethylene glycol as a diol component and 2-methyl-1,3-propanediol as a copolymeric component, wherein the film has a heat shrinkage of 10 % or more in a hot wind of 100 deg.C to at least one direction of horizontal and vertical directions. Preferably the polyester copolymer resin comprises 100 mol% of terephthalic acid or dimethyl terephthalate as a dicarboxylic acid component; 55-97 mol% of ethylene glycol as a diol component; and 3-45 mol% of 2-methyl-1,3-propanediol.

Abstract translation: 目的：提供一种热收缩聚酯基薄膜，以防止端部折叠，收缩后产生褶皱和扭曲。 构成：热收缩性聚酯系膜包含作为二羧酸成分的对苯二甲酸或对苯二甲酸二甲酯，作为二醇成分的乙二醇和作为共聚成分的2-甲基-1,3-丙二醇的聚酯共聚物树脂，其中， 在100℃的热风中的水平和垂直方向的至少一个方向上的热收缩率为10％以上。 优选地，聚酯共聚物树脂包含100mol％的对苯二甲酸或作为二羧酸组分的对苯二甲酸二甲酯; 55-97mol％的二醇组分的乙二醇; 和3-45mol％的2-甲基-1,3-丙二醇。