TRANSPARENT MULTI-LAYER SHEET FOR DISPLAY PLATE

• Main Authors: DOI KUNIHIKO, IWAMOTO NISSHO, TSURUTA MOTOYUKI, FUMOTO YOSHIHIRO
• Format: Patent
• Language: English
• Published: 25.03.2010
• Subjects: ADVERTISING; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; EDUCATION; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a transparent multi-layer sheet for a display plate, which has excellent adhesiveness between resin layers and in which curvature is hardly caused even when environmental humidity changes, and in which practically sufficient stiffness is obtained by forming hard crosslink film on its surface. SOLUTION: The transparent multi-layer sheet for display plates includes a methacrylic resin layer on at least one side of MMA-styrene copolymer resin sheet. The methyl methacrylate (MMA) content of methacrylic resin in a methacrylic resin layer is 85 mol% or more. A hard coat layer is included on at least one side of surfaces of the methacrylic resin layer. COPYRIGHT: (C)2010,JPO&INPIT