COMPOSITE HINGE SHEET FOR LASER-MARKABLE MULTILAYER LAMINATE FOR ELECTRONIC PASSPORT, LASER-MARKABLE MULTILAYER LAMINATE FOR ELECTRONIC PASSPORT, ELECTRONIC PASSPORT, METHOD FOR MANUFACTURING A COMPOSITE HINGE SHEET, AND USE OF A MOLTEN THERMOPLASTIC RESIN

• Main Authors: SUEISHI, Yuuki, WATANABE, Takashi, SAKAGAMI, Toshinori, HASHIMOTO, Akira
• Format: Patent
• Language: English; French; German
• Published: 31.07.2019
• Subjects: BOOK COVERS; BOOKBINDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR; FILES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LOOSE LEAVES; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS; PERFORMING OPERATIONS; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR; SOLDERING OR UNSOLDERING; SPECIAL PRINTED MATTER; TRANSPORTING; WELDING; WORKING BY LASER BEAM

Disclosed is a composite hinge sheet including thermoplastic resin layers 5 made of a thermoplastic resin formed on both surfaces of a woven-fabric like sheet 3 having multiple openings therein. The woven-fabric like sheet 3 includes woven fabric or non-woven fabric made of at least one type selected from polyester, polyamide and polypropylene. The thermoplastic resin layers 5 include, as a raw material, resin having Shore A surface hardness flexibility of 85 or greater and Shore D surface hardness flexibility of less than 70. A part of the thermoplastic resin enters the openings in the woven-fabric like sheet 5, thus blocking all the openings, so that the thermoplastic resin layers 5 are integrated with the woven-fabric like sheet 3. The composite hinge sheet has excellent tearing and tensile strength, is resistant to light and heat in the binding part thereof, and has excellent resistance to repeated bending.