Double-sided pressure-sensitive adhesive tape

Abstract

The invention relates to a pressure-sensitive adhesive tape including: a pressure-sensitive adhesive layer. The pressure-sensitive adhesive tape has a thickness greater than 150 μm and smaller than 1,500 μm, an elongation at break of 600% to 3,000%, and a stress at break of 2.5 to 80.0 MPa. According to the invention, the conformity and the adhesion with respect to an adherend, particularly, a hard adherend, are excellent, and excellent re-peeling properties are obtained, so that the pressure-sensitive adhesive tape can be stretched and peeled off in a horizontal direction, without necessity for embrittling the pressure-sensitive adhesive tape by heating or by using an organic solvent or the like or without remaining of the pressure-sensitive adhesive on the adherend, in a case of peeling the pressure-sensitive adhesive tape.

1 . A pressure-sensitive adhesive tape comprising a pressure-sensitive adhesive layer,
 the pressure-sensitive adhesive tape having a thickness greater than 150 μm and smaller than 1500 μm, an elongation at break of 600% to 3,000%, and a stress at break of 2.5 to 80.0 MPa.   
     
     
         2 . The pressure-sensitive adhesive tape according to  claim 1 , which has a stress at 25% elongation of 0.05 to 10 MPa. 
     
     
         3 . The pressure-sensitive adhesive tape according to  claim 1 , which has a storage elastic modulus E′ (23° C.) of 1.0×10 4  to 1.0×10 8  Pa. 
     
     
         4 . The pressure-sensitive adhesive tape according to  claim 1 , which has a 180° peel strength equal to or more than 5 N/20 mm. 
     
     
         5 . The pressure-sensitive adhesive tape according to  claim 1 , further comprising a base material. 
     
     
         6 . The pressure-sensitive adhesive tape according to  claim 1 ,
 wherein the pressure-sensitive adhesive layer contains a filler.   
     
     
         7 . The pressure-sensitive adhesive tape according to  claim 6 ,
 wherein the filler is carbon.