公开(公告)号：US20230295473A1

公开(公告)日：2023-09-21

申请号：US18021301

申请日：2021-08-16

Applicant: tesa SE

Inventor： Jos TASCHE ,  Andre RELLMANN-SPRINK

IPC: C09J7/38 ,  C09J133/08 ,  C09J133/10

CPC classification number: C09J7/385 ,  C09J133/08 ,  C09J133/10

Abstract: Disclosed is a pressure-sensitive adhesive composition which exhibits good adhesive forces, in particular on polar adhesive substrates, and good shear strength, and a significant proportion of which can be produced from bio-based raw materials. The pressure-sensitive adhesive composition comprises: at least one copolymer which can be traced to a monomer composition comprising a) 45-75 wt. % of at least one monomer selected from i-amyl acrylate, n-heptyl acrylate, and 2-octyl acrylate, b) 24-50 wt. % of at least one alkyl (meth)acrylate, the alcohol component of which has 1 to 4 carbon atoms, and c) 0.5 to 10 wt. % of acrylic acid; and at least one adhesive force-enhancing resin. Also disclosed is an adhesive tape comprising a carrier material and the pressure-sensitive adhesive composition; and the use of the pressure-sensitive adhesive composition or the adhesive tape to produce adhesive bonds in electronic, optical and/or precision mechanical devices.