| 摘要 |
A laminate containing silica, characterized in that it comprises a transparent thermoplastic resin substrate and, laminated thereon, at least one porous silica layer having a refractive index of 1.22 or higher and lower than 1.30, wherein said at least one porous silica layer comprises a plurality of moniliform silica strings composed of a plurality of primary particles of silica connected with one another in a moniliform form, and has a plurality of holes (P) having an area of their openings greater than the average of the measured values for the maximum cross-section area of each of said plurality of primary particles of silica, with the proviso that the area of the openings of said plurality of holes (P) is measured with respect to the openings in the surface or cross-section of said porous silica layer. |
