公开(公告)号：US11440302B2

公开(公告)日：2022-09-13

申请号：US15986912

申请日：2018-05-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Catherine A. Leatherdale ,  David Scott Thompson ,  Michael A. Johnson ,  John J. Stradinger ,  Evan L Breedlove ,  Steven D. Solomonson ,  Joseph D. Rule ,  Peter D. Condo

IPC: B32B27/28 ,  B32B27/40 ,  B32B27/30 ,  B32B7/06 ,  B32B27/08 ,  B32B7/12 ,  H01L51/52 ,  B32B27/16 ,  B32B27/34 ,  B32B27/32 ,  B32B27/36 ,  C08J7/04 ,  C08J7/043 ,  C08J7/046 ,  C08J7/048 ,  H01L51/00

Abstract: A display film includes a transparent polymeric substrate layer having a 0.2% offset yield stress greater than 110 MPa and a transparent aliphatic cross-linked polyurethane layer having a thickness of 100 micrometers or less disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze value of 2% or less.