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.

Date of Patent:
Feb. 10, 2026

Filed:

Mar. 25, 2020
Applicant:

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

Inventors:

Jeffrey A. Peterson, Hugo, MN (US);

Maria A. Appeaning, St. Paul, MN (US);

Christopher P. Gerlach, Woodbury, MN (US);

David J. Kinning, Woodbury, MN (US);

Madison P. Bennett, Minneapolis, MN (US);

Marie A. Boulos, West St. Paul, MN (US);

Anna M. Clausen, Minneapolis, MN (US);

Victor Ho, St. Paul, MN (US);

Kevin T. Huseby, Oakdale, MN (US);

Stephen A. Johnson, Woodbury, MN (US);

Scott M. Lebow, Woodbury, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 7/40 (2018.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); C09J 7/22 (2018.01); C09J 7/38 (2018.01); C09J 7/50 (2018.01);
U.S. Cl.
CPC ...
C09J 7/401 (2018.01); C09J 7/22 (2018.01); C09J 7/385 (2018.01); C09J 7/50 (2018.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2405/00 (2013.01); C09J 2483/005 (2013.01);
Abstract

Article comprising, in order: a first polymeric film having first and second, opposed major surfaces; a first primer layer having first and second opposed, major surfaces on the first major surface of the first polymeric film, wherein for a distance of at least 25 nm starting from the first major surface of the first 5 primer layer toward the second major surface of the first primer layer there is an average Si content, on a theoretical elemental basis, not greater than 15 atomic percent; and a first release layer having first and second opposed, major surfaces, wherein the second major surface of the first release layer is in direct contact with the first major surface of the first primer layer, wherein the first release layer comprises, on a theoretical elemental basis, Si. Articles described herein are useful, for example, as a release liner for 10 casting pressure sensitive adhesives thereon.


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