| 摘要 |
PROBLEM TO BE SOLVED: To provide a tacky sheet in which, when the tacky sheet is stretched, a haze of the tacky sheet increases and, when the stretching of the tacky sheet is returned, the haze of the tacky sheet decreases, and to provide a non-tacky sheet in which, when the non-tacky sheet is stretched, a haze of the non-tacky sheet increases and, when the stretching of the non-tacky sheet is returned, the haze of the non-tacky sheet decreases.SOLUTION: A tacky sheet includes: a tri-block copolymer represented by formula A-B-A (in the formula, A represents a polymer block comprising a methyl methacrylate monomer and B represents a polymer block comprising an alkyl acrylate ester unit having a 4-12 alkyl group); and a polymer of a bifunctional monomer in which a refractive index of the monomer is in the range of 1.45 to 1.47. |
