The present invention relates to a laminated polyester film comprising:
a polyester film as a based film, and
at least one anti-static layer laminated on said polyester film,
said anti-static layer comprising an anti-static resin having (i) a poly(alkylene oxide) unit and a phenylene sulfonic acid group, (ii) poly(alkylene oxide) unit and a phenylene sulfonate group, or (iii) a poly(alkylene oxide) unit, a phenylene sulfonic acid group and phenylene sulfonate, and
said laminated polyester film being oriented at least one direction.
                            本发明涉及一种层压聚酯薄膜,包括
作为基膜的聚酯薄膜,以及
层压在所述聚酯薄膜上的至少一层抗静电层、
所述抗静电层包括抗静电
树脂,该
树脂具有 (i) 聚(环氧烷)单元和
苯磺酸基团,(ii) 聚(环氧烷)单元和
苯磺酸基团,或 (iii) 聚(环氧烷)单元、
苯磺酸基团和
苯磺酸基团,以及
所述层压聚酯薄膜至少在一个方向上定向。