| abstract |
The present invention provides a composite sheet for forming a protective film, which comprises a base material, and an energy ray curable adhesive agent layer and a film for forming a protective film are laminated on one surface of the base material in this order and in a manner of contacting with each other, wherein the gel fraction of the adhesive agent layer is 80% or more, or the gel fraction of the adhesive agent layer is 20% or more and less than 80%, and in the composite sheet for forming a protective film, the glass transition temperature of the film for forming a protective film is 3 ℃ or more. |