A resulting resin sheet, without causing poor appearance and warpage, provides method of manufacturing a resin sheet comprising a high elastic modulus.
A use of the active energy ray-curable composition, the following steps 1 through the method of producing a resin sheet of sequentially carrying out the same 3.
Step 1: on the substrate, or coating the composition or the substrate having a space portion. Step 2 whether or infusion pouring the composition: while maintaining the peak temperature 55 ° C. or less, based on by irradiation with active energy rays from either side of the timber, step step 3 to cure the composition: heating the cured product of the composition obtained in step 2