| abstract |
Provided is a surface protective film having excellent antistatic performance, having a good balance of adhesive force at a low peeling speed and a high peeling speed, and having excellent durability performance and rework performance. An acrylic polymer comprises (A) a (meth) acrylic acid ester monomer having an alkyl group with C4 to C18 carbon atoms, (B) a monomer containing a hydroxyl group, and (D) a polyalkylene glycol mono (meta). And (E) an acrylic acid ester monomer or an alkoxy polyalkylene glycol mono (meth) acrylic acid ester monomer and / or (E) a nitrogen-containing vinyl monomer or an alkoxy group-containing alkyl (meth) acrylate monomer. ) The antistatic agent is an ionic compound that is solid at a temperature of 30 ° C. or an acryloyl group-containing ionic compound, and the crosslinking agent is (F) a trifunctional or higher functional isocyanate compound, and (G) a bifunctional acyclic ring. It consists of a formula aliphatic isocyanate compound. [Selection figure] None |