Surface protection film and method for manufacturing organic light-emitting electronic device
The present disclosure relates to a surface protective film and a method for manufacturing an organic light emitting electronic device.
1. A surface protective film comprising:
a base layer; and
an adhesive layer provided on a surface of the base layer,
wherein the adhesive layer comprises a cured product of an adhesive composition comprising: a urethane polymer; an acrylic polymer; and a curing agent,
wherein the acrylic polymer consists of an alkyl(meth)acrylate monomer having 10 or more carbon atoms; an alkyl(meth)acrylate monomer having less than 10 carbon atoms; and a (meth)acrylate monomer comprising a hydroxyl group, each as a monomer unit,
wherein the alkyl(meth)acrylate monomer having 10 or more carbon atoms is comprised in an amount of 1 wt % to 20 wt % based on a total amount of the monomer units comprised in the acrylic polymer,
wherein the (meth)acrylate monomer comprising the hydroxyl group is comprised in an amount of 1 wt % to 20 wt % based on a total amount of the monomer units comprised in the acrylic polymer, and
wherein a peel strength of the adhesive layer is 0.5 gf/in or more and 10 gf/in or less when a surface of the adhesive layer, opposite to a surface on which the base layer is provided, is peeled off from glass at a peel speed of 1.8 m/min and a peel angle of 180°.
2. The surface protective film of claim 1 , wherein, in the adhesive composition, the acrylic polymer is comprised in an amount of 1 part by weight to 20 parts by weight based on 100 parts by weight of the urethane polymer.
3. The surface protective film of claim 1 , wherein, in the adhesive composition, the curing agent is comprised in an amount of 1 part by weight to 25 parts by weight based on 100 parts by weight of the urethane polymer.
4. The surface protective film of claim 1 , wherein the acrylic polymer has a hydroxyl group value of 5 mgKOH/g to 40 mgKOH/g.
5. The surface protective film of claim 1 , wherein the acrylic polymer has a weight average molecular weight of 10,000 g/mol to 60,000 g/mol.
6. The surface protective film of claim 1 , wherein the urethane polymer has a weight average molecular weight of 60,000 g/mol to 160,000 g/mol.
7. The surface protective film of claim 1 , wherein the base layer comprises a base film; a first anti-static layer provided on one surface of the base film; and a second anti-static layer provided on the other surface of the base film, and
wherein the adhesive layer is provided on a surface of the second anti-static layer, which is opposite to the surface on which the base film is provided.
8. The surface protective film of claim 1 , further comprising a protective layer provided on the surface of the adhesive layer, which is opposite to the surface on which the base layer is provided,
wherein the protective layer comprises: a protective film; and a third anti-static layer and a fourth anti-static layer respectively provided on both surfaces of the protective film, and
wherein the adhesive layer is provided on a surface of the third anti-static layer, which is opposite to the surface on which the protective film is provided.