| 摘要 |
PURPOSE: A heat-shrinkable film is provided to have excellent heat-shrinkable property, thermal resistance, and anti-blocking property, and moderate shrinkage stress, thereby reducing carbon dioxide through the application of carbon dioxide, and not exhausting harmful material. CONSTITUTION: A heat-shrinkable film comprises a base material layer containing an aliphatic polycarbonate resin, a heat-resistant polymer membrane in which one side or both sides of the base material layers are coated. The shrinkage ratio of the film along main shrinkage direction at 90 °C for 10 seconds is 30% or more, and the film is elongated at least along one direction. The aliphatic polycarbonate resin is obtained by the copolymerization of carbon dioxide and an epoxide compound selected from a group consisting of alkylene oxide, cycloalkene oxide, and a mixture thereof. |
