Adhesive agent composition, surface protection film, and method of manufacturing organic light-emitting electronic device

An adhesive composition comprising:

• a urethane polymer;
• an acryl-based polymer;
• and
• a curing agent,
• wherein the acryl-based polymer comprises monomer units derived from a (meth) acrylate monomer comprising silicone;
• and a (meth) acrylate monomer comprising a hydroxyl group,
• wherein the acryl-based polymer comprises a copolymer of:
• (i) 70% by weight to 98.9% by weight of an alkyl (meth) acrylate monomer having less than 8 carbon atoms;
• (ii) 0.1% by weight to 10% by weight of the (meth) acrylate monomer comprising silicone;
• and
• (iii) 1% by weight to 20% by weight of the (meth) acrylate monomer comprising a hydroxyl group,
• wherein the acryl-based polymer is included in an amount of 1 parts by weight to 10 parts by weight with respect to 100 parts by weight of the urethane polymer,
• wherein the (meth) acrylate monomer comprising silicone has a number average molecular weight of 500 g/mol to 10,000 g/mol
• wherein the urethane polymer has a weight average molecular weight of 60,000 g/mol to 160,000 g/mol, and
• wherein the monomer unit derived from the (meth) acrylate monomer comprising silicone is represented by Chemical Formula 3:
• wherein, in Chemical Formula 3,
• R1 to R7 are the same as or different from each other, and each independently an alkyl group;
• R8 is hydrogen or a methyl group;
• n is an integer of 0 or greater;
• and
• L is a linear or branched divalent saturated hydrocarbon group;
• a divalent monocyclic aliphatic saturated hydrocarbon group;
• a divalent polycyclic saturated hydrocarbon group;
• a divalent aromatic hydrocarbon group;
• a divalent group of a ring having cyclic saturated hydrocarbon fused to aromatic hydrocarbon;
• —O—;
• —C(═O)—;
• —C(═O)—O—;
• —S—;
• or a group linking two or more of the groups thereof;
• wherein the urethane polymer is obtained by curing a urethane composition comprising a polyol and a multifunctional isocyanate compound;
• wherein the polyol comprises 2 to 6 hydroxyl groups, wherein an equivalence ratio of an isocyanate group to a hydroxyl group (NCO/OH) in the urethane composition is greater than or equal to 0.1 and less than 1, wherein the urethane polymer has a hydroxyl group value of 3 mgKOH/g to 15 mgKOH/g, and wherein the acryl-based polymer has a hydroxyl group value of 5 mgKOH/g to 40 mgKOH/g.