| 摘要 |
PURPOSE:To produce a polyeser laminated film excellent in heat-resistant adhesiveness and mechanical characteristics and useful as a magnetic recording medium, a packing material or a laminated material. CONSTITUTION:A layer (B) of polyester produced from a dicarboxylic acid component containing 30mol% or more of phenylindane dicarboxylic acid and a dihydroxy compd. component is laminated to at least the single surface of a layer (A) of polyester prepared from a dicarboxylic acid component containing 70mol% or more of terephthalic acid and/or 2,6-naphthalenedicarboxylic acid and a dihydroxy compd. by co-extrusion to form a non-stretched laminated film which is, in turn, biaxially stretched. The obtained film is again stretched at least uniaxially at 80-220 deg.C to produce an easy bonding laminated film. |
