| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a base film for marking films, having sufficient flexibility without containing a plasticizer and excellent in environmental compatibility. <P>SOLUTION: A base film for marking films, produced by a solvent cast method and containing 3-hydroxy alkanoate comprising a recurring unit represented by formula (1) [-CHR-CH<SB POS="POST">2</SB>-CO-O-] (wherein, R is alkyl represented by C<SB POS="POST">n</SB>H<SB POS="POST">2n+1</SB>; and n is an integer of ≥1 and ≤15) is provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
