| 摘要 |
PROBLEM TO BE SOLVED: To provide a repairing polyester film for a metal can welding part which is excellent in impact resistance, adhesive properties, processing characteristics and dimensional stability under high temperatures or the like by solving problems of environmental characteristics, rustproofness or the like which have not been attained by conventional coating type repairing agents. SOLUTION: The metal can welding part repairing film comprises two or more laminated films, wherein a layer (A) forming one exposed surface is composed of a polyester A having 10 to 50 mol% of four cyclohexanedimethanol units in the whole polyhydric alcohol units and of a polyester B having a melting point of 200 to 280°C, while a layer (B) forming the other exposed surface is composed of 90 to 40 pts.wt. of a polyester D having a melting point of 200 to 280°C and of 10 to 60 pts.wt. of a polybutylene terephthalate-based resin, and the thickness ratio (tA/tB) of the layers (A) to (B) is 1 to 50. COPYRIGHT: (C)2003,JPO
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