| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aliphatic polyester film for optics, which never deteriorates the work environment, has an improved hydrolysis resistance, has a suppressed thermal distortion generated in use in a high-temperature environment, and has an improved adhesivity. <P>SOLUTION: The aliphatic polyester film for optics has: a substrate film comprising a resin composition obtained by mixing an aliphatic polyesteric resin and a compound having one carbodiimide group and at least having a cyclic structure in which first nitrogen and second nitrogen thereof are bonded through a bonding group; and a coating layer containing at least one polymer binder selected from the group consisting of an acryl resin, a polyester resin and a urethane resin, wherein the film has a thermal shrinkage of 0.5 to 0.0% in the longitudinal direction when being treated at 90°C for 30 min. <P>COPYRIGHT: (C)2012,JPO&INPIT |
