Active energy ray-curable release type pressure-sensitive adhesive composition and release type pressure-sensitive adhesive sheet

摘要

As an active energy ray-curable release type pressure-sensitive adhesive composition having excellent adhesive properties and stain resistance, an acrylic resin (A), a urethane (meth) acrylate-based compound (B), and the above-mentioned urethane (meth) acrylate-based compound (B) A release-type pressure-sensitive adhesive composition containing an ethylenically unsaturated compound (C), a photopolymerizable initiator (D), and a cross-linking agent (E), excluding the above, SP in the solubility parameter of the acrylic resin (A). The value is 9.9 (cal / cm3) 1/2 or more, the urethane (meth) acrylate-based compound (B) has 2 to 20 ethylenically unsaturated groups, and the ethylenically unsaturated compound. (C) has 2 to 10 ethylenically unsaturated groups, and the total content of the urethane (meth) acrylate-based compound (B) and the ethylenically unsaturated compound (C) is the acrylic resin. (A) To provide an active energy ray-curable release type pressure-sensitive adhesive composition having 20 to 100 parts by weight with respect to 100 parts by weight.