Curable resin composition, method for curing same, and sheet manufactured therefrom

A sheet comprising a cured product layer cured from a curable resin composition, wherein the curable resin composition comprises:

• a curable compound comprising an acrylic compound, wherein the acrylic compound comprises:
• acrylic acid;
• and
• at least one (meth)acrylic acid ester compound selected from the group consisting of methyl(meth)acrylate, ethyl (meth)acrylate, n-propyl(meth)acrylate, isopropyl(meth)acrylate, n-butyl(meth)acrylate, t-butyl(meth)acrylate, sec-butyl(meth)acrylate, pentyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, 2-ethylbutyl(meth)acrylate, n-octyl(meth)acrylate, isooctyl(meth)acrylate, isononyl(meth)acrylate, lauryl(meth)acrylate and tetradecyl(meth)acrylate;
• a photoinitiator;
• and
• at least two thermal initiators, wherein the at least two thermal initiators comprises:
• a first thermal initiator, wherein the first thermal initiator is configured to start curing at 40° C. to 60° C.;
• and
• a second thermal initiator, wherein the second thermal initiator is configured to start curing at 70° C. to 90° C.,
• wherein the cured product layer exhibits a molecular weight distribution having at least two peaks,
• wherein the cured product layer has a first peak at a number average molecular weight of 104 to 105, and a second peak at a number average molecular weight of greater than 105 to 106, and the cured product layer has a first glass transition temperature of 45° C. to 60° C., a second glass transition temperature of 65° C. to 85° C., and a third glass transition temperature of 100° C. to 130° C.,
• wherein the cured product layer is cured from the curable resin composition by sequentially performing a first thermal curing, a photocuring through light irradiation, and a second thermal curing to the curable resin composition, and
• wherein the cured product layer has a thickness of more than 3.0 mm and 10.0 mm or less.