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.:
Date of Patent:
Nov. 08, 2022
Filed:
Jun. 20, 2018
3m Innovative Properties Company, St. Paul, MN (US);
Matthew H. Frey, Cottage Grove, MN (US);
Megan A. Creighton, Somerville, MN;
Morgan A. Priolo, Woodbury, MN (US);
Benjamin R. Coonce, South St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Article () comprising a substrate () comprising a polymer and having first () and second () opposed major surfaces. The first major surface () has first surface regions () with first nanoparticles () partially embedded into the first major surface (), and one of •(a) second surface regions () free of nanoparticles; or •(b) second surface regions () with at least second nanoparticles () on the first major surface () or partially embedded into the first major surface (). The first surface regions () have a first average surface roughness, R, of at least 20 nm, wherein the second surface regions () have a second average surface roughness, R, of less than 100 nm, wherein the first average surface roughness, R, is greater than the second average surface roughness, R, and wherein there is an absolute difference between the first and second average surface roughness of at least 10 nm.