PRISM SHEET AND METHOD OF MANUFACTURING THE SAME
PROBLEM TO BE SOLVED: To provide a prism sheet which has excellent light permeability in a low wavelength region of an ultraviolet ray and a visible light beam and has excellent heat resistance at a level not causing deformation and discoloration or the like due to the effect of heat, and also to pr...
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| creator | OBI KAZUKI TANAKA KOJIRO YAMAMOTO TATSUYA |
| description | PROBLEM TO BE SOLVED: To provide a prism sheet which has excellent light permeability in a low wavelength region of an ultraviolet ray and a visible light beam and has excellent heat resistance at a level not causing deformation and discoloration or the like due to the effect of heat, and also to provide a method of manufacturing the prism sheet.SOLUTION: The prism sheet is obtained by molding an acrylic-modified urethane-urea resin composition which contains an acrylic-modified urethane-urea resin (1) obtained by reacting polyol (A), polyisocyanate (B), polyamine (C) and an acrylic compound (D) having an active hydrogen atom-containing group, and a solvent (2), and in which the equivalent weight of an acryloyl group derived from the acrylic compound (D) contained in the acrylic-modified urethane-urea resin is in a range of 10,000 to 50,000. |
| format | Patent |
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| subjects | BLASTING CHEMISTRY COMPOSITIONS BASED THEREON FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MECHANICAL ENGINEERING METALLURGY NON-PORTABLE LIGHTING DEVICES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS |
| title | PRISM SHEET AND METHOD OF MANUFACTURING THE SAME |
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