公开(公告)号：US11370940B2

公开(公告)日：2022-06-28

申请号：US16615477

申请日：2018-05-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Erik M. Townsend ,  Shantanu R. Ranade ,  William H. Moser ,  Kathleen S. Shafer ,  Michael A. Kropp ,  Jayshree Seth ,  Ross E. Behling

IPC: C09J4/00 ,  C09J7/40 ,  C08F4/40 ,  C08F220/18 ,  C08K5/15 ,  C08K5/1565

Abstract: An adhesive article comprising first and second tacky latent adhesive layers disposed on respective first and second opposed major surfaces of a substrate. Each of the first and second tacky latent adhesive layers independently comprises at least one polymerizable component, and a redox initiator system comprising a transition metal complex that participates in a redox cycle, an oxidizing agent, and a blocked reducing agent represented by the formula ((I). Each of R1 and R2 are independently H, an alkyl, an aryl, or RPhoto5 with the proviso that at least one of R1 and R2 is RPhoto. RPhoto represents a photoremovable group. Each of R3 and R4 independently represents H, an alkyl group, or an aryl group comprising a monovalent ester, ether, urethane, or carbonate group. Methods of making and using the adhesive articles are also disclosed.