| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing material and a lid material enabling heat sealing at low temperatures on a polyester product such as a polyester plate or polyester container and excellent in easy peelability. <P>SOLUTION: The sealing resin composition comprises (A) a noncrystalline polyester with a glass transition temperature of ≥40°C but lower than 100°C and (B) at least one noncrystalline resin selected from the group consisting of a polyester, polyurethane, acrylic resin and epoxy resin. In this composition, the specific gravity difference at 30°C between the noncrystalline polyester A and the noncrystalline resin B is ≥0.05 but less than 0.40, and the mass ratio A/B is (99:1) to (50:50). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
