| 摘要 |
PROBLEM TO BE SOLVED: To obtain laminated reflection films each reflecting light of red, green or blue, and to obtain a multilayer optical film reflecting an arbitrary color by laminating these laminated reflection films. SOLUTION: (1) In each of the laminated reflection films of red color, green color and blue color, two kinds of ultrathin film layers, that is, a first base layer and a second base layer are alternately laminated so that 100 to 500 layers in total are laminated, and a skin layer having a thickness thicker than that of each ultrathin film layer is provided on both end faces of the laminate. The first base layer is formed from an acrylic resin, and the second base layer is formed from a polymer blend of polybutylene terephthalate, a polybutylene terephthalate elastic body and/or a block copolymer of polyethylene terephthalate and polyethylene glycol, and a linear low-density polyethylene. Each laminated reflection film is produced through a drawing stage drawing a laminated film to the longitudinal direction and the latitudinal direction. (2) The multilayer optical film is obtained by laminating at least two kinds selected from the laminated reflection films. COPYRIGHT: (C)2011,JPO&INPIT
|
