| 摘要 |
<p>A polyol compound represented by the general formula (I); a transparent molding produced using the compound; and a transparent molding obtained from a specific aromatic diamine and an isocyanate- terminated prepolymer obtained by reacting a ring-containing aliphatic diisocyanate with a diol or dithiol which contains one or more sulfur atoms in the molecule and has an average molecular weight of 300 to 2,500, and a process for producing the transparent molding. General formula (I) HO-Z-B-Y-(-A-X-A-Y-)n-B-Z-OH [In the formula, X and Y each represents C3-12 alkylene in which at least one of the methylene groups contained (excluding the terminal groups) has been replaced with a sulfur atom (provided that the alkylene group contains no sulfur atoms bonded to each other); Z represents C2-6 alkylene in which the methylene groups contained (excluding the terminal groups) may have been replaced with a sulfur atom (provided that the alkylene group contains no sulfur atoms bonded to each other); A and B each represents an ester group, thioether group, carbamate group, or thiocarbamate group; and n is an integer of 0 to 12.]</p> |
