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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11440302 B1

PDFFull Text
Date of Patent:
Sep. 13, 2022

Filed:

May. 23, 2018

Thin protective display film

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Catherine A. Leatherdale, Woodbury, MN (US);

David Scott Thompson, West Lakeland, MN (US);

Michael A. Johnson, Stillwater, MN (US);

John J. Stradinger, Roseville, MN (US);

Evan L Breedlove, Woodbury, MN (US);

Steven D. Solomonson, Shoreview, MN (US);

Joseph D. Rule, Woodbury, MN (US);

Peter D. Condo, Lake Elmo, MN (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);

Attorney:
Primary Examiner:

Callie E Shosho

Assistant Examiner:

Steven A Rice

Int. Cl.
CPC ...
B32B 27/28 (2006.01); B32B 27/40 (2006.01); B32B 27/30 (2006.01); B32B 7/06 (2019.01); B32B 27/08 (2006.01); B32B 7/12 (2006.01); H01L 51/52 (2006.01); B32B 27/16 (2006.01); B32B 27/34 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C08J 7/04 (2020.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/048 (2020.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/281 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/308 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); C08J 7/042 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/048 (2020.01); H01L 51/0097 (2013.01); H01L 51/5253 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2307/40 (2013.01); B32B 2307/412 (2013.01); B32B 2307/50 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/584 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/732 (2013.01); B32B 2307/734 (2013.01); B32B 2307/748 (2013.01); B32B 2457/20 (2013.01); B32B 2457/202 (2013.01); B32B 2457/206 (2013.01); C08J 2379/08 (2013.01); C08J 2475/04 (2013.01); Y02E 10/549 (2013.01);
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.

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