公开(公告)号：US20240001415A1

公开(公告)日：2024-01-04

申请号：US18253989

申请日：2022-01-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jodi L. Connell ,  Raymond P. Johnston ,  John J. Sullivan ,  Karl J.L. Geisler ,  Vivian W. Jones ,  Gordon A. Kuhnley ,  Patrick G. Zimmerman ,  Bradley W. Eaton ,  Kurt J. Halverson ,  Brian W. Lueck ,  Alexandr C. Eldredge ,  Hyacinth L. Lechuga ,  Lynn E. Lorimor ,  Diane R. Wolk ,  Junia M. Pereira ,  Caroline M. Yitalo ,  Linda W. Suszko ,  Daniel J. Rogers ,  Bryon A. Mrrill

IPC: B08B17/06 ,  B08B17/04

CPC classification number: B08B17/065 ,  B29C2059/023 ,  B08B17/04

Abstract: Films and articles are described comprising a microstructured surface having an array of peak structures and adjacent valleys. For improved cleanability, the valleys preferably have a maximum width ranging from 10 microns to 250 microns and the peak structures have a side wall angle greater than 10 degrees. The peak structures may comprise two or more facets such as in the case of a linear array of prisms or an array of cube-corners elements. The facets form continuous or semi-continuous surfaces in the same direction. The valleys typically lack intersecting walls. Also described are methods of making and methods of use. The microstructured surface of the article can be prepared by various microreplication techniques such as coating, injection molding, embossing, laser etching, extrusion, casting and curing a polymerizable resin; and bonding microstructured film to a surface or article with an adhesive.