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:
Jan. 06, 2009
Filed:
Jan. 10, 2008
William D. Coggio, Hudson, WI (US);
Thomas P. Klun, Lakeland, MN (US);
George G. I. Moore, Afton, MN (US);
Naiyong Jing, Woodbury, MN (US);
Chuntao Cao, Woodbury, MN (US);
Sharon Wang, Saint Paul, MN (US);
Patricia M. Savu, Maplewood, MN (US);
Lan H. Liu, Rosemount, MN (US);
Joan M. Noyola, Maplewood, MN (US);
William D. Coggio, Hudson, WI (US);
Thomas P. Klun, Lakeland, MN (US);
George G. I. Moore, Afton, MN (US);
Naiyong Jing, Woodbury, MN (US);
Chuntao Cao, Woodbury, MN (US);
Sharon Wang, Saint Paul, MN (US);
Patricia M. Savu, Maplewood, MN (US);
Lan H. Liu, Rosemount, MN (US);
Joan M. Noyola, Maplewood, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.