| abstract |
The present invention provides an active energy ray-curable resin sheet having reduced mechanical shrinkage due to elastic recovery in stress release after three-dimensional processing, and excellent in mechanical strength and elongation. A resin sheet obtained by curing a composition containing a urethane (meth) acrylate oligomer (A) and a reactive diluent monomer (B) with an active energy ray has a value of 40 with respect to the yield point strength (x) at 23 ° C. An active energy ray-curable resin sheet having a% elongation strength (y) ratio (y / x) of 0.9 or less, a yield point strength of 15 MPa or more, and a breaking elongation of 100% or more. [Selection diagram] None |