Transparent substrate

摘要

The present invention provides a transparent substrate excellent in solvent crack resistance, toughness, heat resistance, and flexibility. A transparent substrate according to an embodiment of the present invention includes: an inorganic glass; and a first resin layer placed on at least one side of the inorganic glass, wherein: the first resin layer contains a resin compound having a weight-average molecular weight in terms of polystyrene of 8×104 to 100×104; and no solvent crack occurs when a mixed solvent containing 20 wt % to 95 wt % of at least one kind of solvent selected from the group consisting of acetone, N-methylpyrrolidone, dimethyl sulfoxide, and N,N-dimethylformamide is brought into contact with the substrate.

主权项

1. A transparent substrate, comprising:
an inorganic glass; and a first resin layer placed on at least one side of the inorganic glass, wherein: the first resin layer contains a resin compound having repeating units represented by general formulae (1), (2), and (3); and no solvent crack occurs when a mixed solvent containing 20 wt % to 95 wt % of at least one kind of solvent selected from the group consisting of acetone, N-methylpyrrolidone, dimethyl sulfoxide, and N,N-dimethylformamide is brought into contact with the substrate: in the formula (1), R1 represents a linear or branched alkyl group having 1 to 5 carbon atoms, R2 represents a linear or branched alkyl group having 2 to 5 carbon atoms, and A1 and A2 each independently represent an oxygen atom, a single bond, or a linking group represented by a general formula (5); in the formula (2), X represents a substituted or unsubstituted arylene group having 6 to 18 carbon atoms, and A3 and A4 each independently represent at least one kind selected from linking groups represented by general formulae (4) to (8), and the A3 and the A4 are bonded to para positions or meta positions of X; in the formula (3), R3 represents a methyl group, or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, and A5 and A6 each independently represent an oxygen atom, a single bond, or the linking group represented by the general formula (5); and the number of A3's and A4's bonded to the para positions is three or more times as large as the number of A3's and A4's bonded to the meta positions.