公开(公告)号：US20230374353A1

公开(公告)日：2023-11-23

申请号：US18247276

申请日：2021-09-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael J. Maher ,  Adam O. Moughton ,  Jonathan E Janoski ,  Anthony F . Schultz ,  Clinton G. Wiener

IPC: C09J133/08 ,  C09J11/08

CPC classification number: C09J133/08 ,  C09J11/08

Abstract: Described herein is a pressure sensitive adhesive composite composition. The composition comprises: a plurality of polymeric microspheres dispersed within a (meth)acrylate-based matrix, wherein the polymeric microspheres are derived from 20-100 wt % of isobornyl (meth)acrylate; and the (meth)acrylate-based matrix comprises an at least partially polymerized reaction product comprising a C4 to C20 (meth)acrylate ester monomer. In some embodiment, these composite pressure sensitive adhesives show good peel adhesion to low surface energy substrates. In some embodiment, these composite pressure sensitive adhesives are optically clear.