Polycarbonate resin laminate

• Main Authors: YOKOYAMA, TOMONARI, HIRANO, KIYOTAKA, SHIRAISHI, YOSHITAKA, YAMAMOTO, MASANORI, HITOMI, TATSUYA, NISHIHARA, RYOUHEI, SHIDOU, MASAHIDE
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2013
• 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; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

Provided is a polycarbonate resin laminate which has considerably improved surface hardness, excellent color tone and excellent impact resistance. A polycarbonate resin laminate which comprises at least a surface layer (A) and a resin layer (B) and is characterized by satisfying the following conditions. (i) The surface layer (A) is formed of a polycarbonate resin composition which contains at least a polycarbonate resin (a) that has at least a structural unit represented by formula (1) and a polycarbonate resin (b) that has a structural unit different from that of the polycarbonate resin (a). (ii) The mass ratio of the polycarbonate resin (a) to the polycarbonate resin (b) in the surface layer (A) is within the range from 45:55 to 99:1. (iii) The pencil hardness of the polycarbonate resin laminate as specified by ISO 15184 and measured from the surface layer (A) side is not less than H.