LAMINATED THERMOPLASTIC RESIN FILM AND LAMINATED THERMOPLASTIC RESIN FILM ROLL

• Main Authors: MIZUNO NAOKI, MORISHIGE CHIKAO, IWADE SHIGENORI, NISHINO YASUHIRO, NOSE KATSUHIKO, SUZUKI TOSHITAKE, SUGIHARA HIDENORI
• Format: Patent
• Language: English
• Published: 08.03.2007
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a laminated thermoplastic resin film excellent in adhesion and blocking resistance. SOLUTION: The laminated thermoplastic resin film has a coated layer containing a copolymerized polyester-based resin and a polyurethane-based resin on one or both of the sides of a polyester film. The coated layer has a structure in which PEs phases A mainly composed of a copolymerized PEs-based resin and PU phases B mainly composed of a PV-based resin are separated as micro phases or nano phases. Under scanning phase microscopic observation in phase measurement mode on a measured area of 5 μm×5 μm, the ratio of the surface (PEs surface ratio) of the PEs phase A (a dark phase 1 in a phase image) on the surface of the coated layer as defined by formula (1) is more than 35% and under 90%. Formula (1) is [PEs surface ratio (%)]=(area of PEs phase A/measured area)×100. COPYRIGHT: (C)2007,JPO&INPIT