公开(公告)号：US20250135747A1

公开(公告)日：2025-05-01

申请号：US18690932

申请日：2022-09-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen A. Johnson ,  William T. Fay ,  Atheen R. Johnson ,  Brian R. Peterson

IPC: B32B7/023 ,  B29D11/00 ,  B29K23/00 ,  B29K67/00 ,  B32B3/28 ,  B32B7/02 ,  B32B27/32 ,  B32B27/36

Abstract: A polymeric film has an orthogonal length, width and thickness. The polymeric film includes first and second substrates spaced apart along the thickness and a plurality of crumpled elements extending between the first and second substrates and along the length. The crumpled elements are substantially coextensive with the first and second substrates along the length and are spaced apart along the width.

公开(公告)号：US20250110261A1

公开(公告)日：2025-04-03

申请号：US18725256

申请日：2023-01-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kevin T. Huseby ,  Stephen A. Johnson ,  Adam D. Haag ,  John D. Le ,  Jacob D. Young ,  Brian R. Peterson ,  Kayla A. McGrath

IPC: G02B1/111 ,  B29C48/00 ,  B29C48/18 ,  B29C48/21 ,  B29C48/22 ,  B29K23/00 ,  B29K105/00 ,  B29L11/00 ,  G02B3/00 ,  G02B5/08

Abstract: An optical film includes a plurality of alternating first and second polymeric layers disposed on a first protective layer. Each of the first and second polymeric layers has an average thickness less than about 500 nm and the first protective layer has an average thickness greater than about 750 nm. An olefin layer can be disposed on the first protective layer opposite the plurality of alternating first and second polymeric layers. The olefin layer includes cyclic olefin copolymer, cyclic olefin polymer, or a blend thereof. The olefin layer can have an unstructured major surface opposite the first protective layer. A bonding layer is disposed between, and bonds together, the olefin layer and the first protective layer. The optical film is integrally formed.