| 摘要 |
PROBLEM TO BE SOLVED: To provide a white polyester film which is excellent in resistances to curls and creases while retaining softness and cushioning properties. SOLUTION: This white polyester film is prepared by mixing a polyester with at least one thermoplastic resin noncompatible with the polyester, includes microbubbles, has a specific gravity of 0.7-1.3, and contains a polystyrene elastomer in a quantity of 0.1-20 wt.% based on the film. COPYRIGHT: (C)2004,JPO |
