公开(公告)号：US20230287249A1

公开(公告)日：2023-09-14

申请号：US18119942

申请日：2023-03-10

申请人： tesa SE

发明人： Christian Schuh ,  Nadine Wedel ,  Bastian Kruskop ,  Lena-Marie Naujoks ,  Nora Erben

IPC分类号： C09J151/00 ,  C09J7/10

CPC分类号： C09J151/006 ,  C09J7/10

摘要： The invention relates to a curable adhesive comprising, based on the mass of the curable adhesive: a) one or more (meth)acrylate block copolymers of the structure A-B-A in a combined mass fraction of 25% or more, where the A blocks independently of one another stand for a poly(meth)acrylate having a glass transition temperature Tg of 50° C. or more which is preparable by polymerization of an A monomer composition composed of A monomers, where the B block stands for a poly(meth)acrylate having a glass transition temperature Tg of less than 50° C. which is preparable by polymerization of a B monomer composition composed of B monomers, b) one or more polymerizable first epoxide compounds E1 in a combined mass fraction of 5% or more, where the first epoxide compound E1 at 25° C. is a solid or a high-viscosity substance, and c) one or more polymerizable second epoxide compounds E2 in a combined mass fraction of 5% or more, where the second epoxide compound E2 at 25° C. is a liquid, where the amount-of-substance-weighted polar component of the Hansen solubility parameters of the monomer units derived from A monomers in the A blocks, (A), is in the range from 9.0 to 11.0 MPa0.5, and where the amount-of-substance-weighted polar component of the Hansen solubility parameters of the monomer units derived from B monomers in the B blocks, (B) is less than 9 MPa0.5.