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:
Aug. 07, 2018
Filed:
Apr. 25, 2014
3m Innovative Properties Company, St. Paul, MN (US);
Justin A. Riddle, St. Paul, MN (US);
Paul B. Armstrong, Minneapolis, MN (US);
Karan Jindal, Woodbury, MN (US);
Samuel J. Carpenter, St. Paul, MN (US);
Garry W. Lachmansingh, Plymouth, MN (US);
William R. Dudley, Sebring, FL (US);
Jason T. Petrin, Woodbury, MN (US);
Naiyong Jing, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Articles having poly(vinyl alcohol) (PVA) and silica nanoparticle multilayer coatings are provided. More specifically, the articles include a substrate and a multilayer coating attached to the substrate. The multilayer coating includes a silica layer that is the outermost layer, the silica layer containing acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. The multilayer coating also includes a PVA layer disposed between a surface of the substrate and the outermost silica layer. The PVA and silica nanoparticle coatings can be used on a large variety of substrates and tend to be resistant to impacts, scratches, wet abrasions, soil and fog.