REINFORCING SHEET FOR RESIN MOLDED ARTICLE, REINFORCED STRUCTURE OF RESIN MOLDED ARTICLE, AND REINFORCING METHOD

摘要

A reinforcing sheet for a resin molded article includes a constraining layer and a reinforcing layer laminated on the constraining layer. When the reinforcing sheet for a resin molded article is attached to a polypropylene plate having a thickness of 2.0 mm and is heated at 80° C. for 10 minutes, the bending strength at a displacement of 1 mm of the resulting sheet after the heating is 3 N or more and the maximum bending strength thereof is 30 N or more, and a high-temperature adhesion retention ratio R as determined by the following formula is 80% or more. High-temperature adhesion retention ratio R=(Adhesive force A1000h after heating at 100° C. for 1000 hours/Adhesive force A1h after heating at 100° C. for 1 hour)×100