| abstract |
PROBLEM TO BE SOLVED: To provide an optical material having optical transparency, heat resistance, adhesiveness, crosslinkable and excellent solvent resistance, and a liquid crystal display substrate material using the same. SOLUTION: A repeating unit (a) obtained from a specific cyclic olefin and a repeating unit having an alkoxysilyl group or an allyloxysilyl group or a hydrolysis / condensation residue thereof obtained from another specific cyclic olefin ( An optically transparent material containing a cyclic olefin copolymer containing b) and a liquid crystal display substrate material using the same. In the above (a), norbornene substituted with an alkyl group having 3 to 8 carbon atoms is used as a structural unit. And / or a repeating unit (a) in which at least one of the substituents of the cyclic olefin contains an ester group or an imide group, and the mixing ratio of the components (a) and (b) is It is preferably within a specific range. |