| abstract |
A transparent resin material consisting of a hydrogenation product of a (co)polymer obtained by subjecting at least one compound represented by general formula (I) or a combination of at least 5% by weight of said compound and 95% by weight or less of other copolymerizable cyclic olefin monomer to metathesis polymerization: <IMAGE> (I) wherein A and B are independently hydrogen atoms or C1-10hydrocarbon groups; and X and Y are independently hydrogen atoms, C1-10hydrocarbon groups, -C(CH2)nCOOR1 groups or -(CH2)nOCOR1 groups [R1 is a C1-20hydrocarbon group and n is 0 or an integer of 1-10] with the proviso that at least one of X and Y is selected from the above -(CH2)nCOOR1 and -(CH2)nOCOR1 groups. Said transparent resin material is moldable and has sufficient optical properties, low hygroscopicity, good heat resistance and excellent adhesion to recording layer. |