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:
Feb. 17, 2009
Filed:
Dec. 30, 2004
Richard J. Pokorny, Maplewood, MN (US);
Roger A. Mader, Stillwater, MN (US);
David B. Olson, Marine on St. Croix, MN (US);
Brant U. Kolb, Afton, MN (US);
Richard J. Pokorny, Maplewood, MN (US);
Roger A. Mader, Stillwater, MN (US);
David B. Olson, Marine on St. Croix, MN (US);
Brant U. Kolb, Afton, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The development of new compositions and new aromatic sulfur acrylate monomers results in improved hardcoat films, and improved optical films that contain the hard coat films. The films provide improved display systems when incorporated thereon. The combination of functionalized zirconia nanoparticles with multifunctional acrylate crosslinkers and high index of refraction aromatic sulfur acrylates, about 1.58 or greater, produces abrasion resistant hard coats that have relatively high refractive indices.