| abstract |
(57) [Summary] [PROBLEMS] To provide a plastic sheet capable of greatly suppressing damage to a sheet end portion in transportation, handling, a manufacturing process, or the like. SOLUTION: In a polygonal plastic sheet obtained by polymerizing and curing a polymerizable composition containing a polymerizable monomer having two or more polymerizable functional groups in a molecule, at least one of its corners is notched. A plastic sheet having a shape or an R-corner shape. |