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1. (WO2018102089) POLYMERIC MULTILAYER FILM WITH OPENINGS

Pub. No.:    WO/2018/102089    International Application No.:    PCT/US2017/060544
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 09 00:59:59 CET 2017
IPC: B32B 7/06
B32B 7/12
B32B 23/20
B32B 25/12
B32B 25/14
B32B 25/16
B32B 27/28
B32B 27/30
B32B 27/32
B32B 27/34
B32B 27/36
B32B 3/26
B32B 3/30
B32B 25/04
B32B 25/08
B32B 27/08
B29C 47/04
B32B 37/15
B32B 38/06
B32B 38/10
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: SLAMA, David F.
ANTILA, Garth V.
HANSEN, Brent R.
CLARKE, Graham M.
EMSLANDER, Jeffrey O.
ROGERS, John J.
YOUNG, Jacob D.
Title: POLYMERIC MULTILAYER FILM WITH OPENINGS
Abstract:
Polymeric multilayer films having an array of openings extending between the first and second major surfaces of the film, and a thickness greater than 50 micrometers, wherein the openings each have a series of areas through the openings from the first and second major surfaces ranging from minimum to maximum areas, and wherein the minimum area is not at at least one of the major surfaces. Polymeric multilayer films described herein are useful, for example, for wound dressings and graphics films.