| 摘要 |
<p>A pressure-sensitive adhesive sheet for surface protection which is friendly to the global environment and has excellent pressure-sensitive adhesive properties and antifouling properties is provided using a plant-derived starting material. The pressure-sensitive adhesive sheet for surface protection comprises a support and, formed on at least one surface thereof, a pressure-sensitive adhesive layer formed from a polyester-based pressure-sensitive adhesive composition comprising a crosslinking agent and a polyester comprising lactic acid units, dibasic acid units, and glycol units, and is characterized in that the dibasic acid units include a dimer acid, the polyester has a glass transition temperature measured with a differential scanning calorimeter at a heating rate of 20 ºC/min. of -70 to -20ºC and has a weight-average molecular weight of 20,000-200,000, the polyester-based pressure-sensitive adhesive composition has a hydroxyl value of 20-60 mg-KOH/g, and the pressure-sensitive adhesive layer has a gel content of 85-99 wt.%.</p> |
