| abstract |
The present invention provides an adhesive sheet (surface protective film) having a top coat which is excellent in removability and workability, and which is excellent in whitening resistance and the like, which does not cause bulging or peeling with time. The adhesive sheet of the present invention has an adhesive layer formed of an adhesive composition on one side of the support film, and the support film has a top coat on the side opposite to the side having the above adhesive layer, It is characterized in that the top coat layer contains a wax as a lubricant and a polyester resin as a binder, and a peeling speed of 0.3 m/Cattatape (registered trademark) on the surface of the top coat layer at 23 ° C for 30 minutes is attached. The adhesive strength (A) of the adhesive layer under min is 4.0 N/24 mm or more, and the adhesive surface of the adhesive layer is adhered to the TAC surface at 23 ° C for 30 minutes, and the peeling speed of the polarizing plate is 0.3 m/min. (B) is 0.1 N/25 mm or less, and the adhesion area of the adhesive layer of 200 mm 2 is bonded to the TAC polarizing plate, and a creep test of applying a shear load of 500 g at 23 ° C for 30 minutes is performed at an offset of 2.5. Below mm. |