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. 21, 2020
Filed:
Apr. 14, 2010
Encai Hao, Woodbury, MN (US);
William Blake Kolb, West Lakeland, MN (US);
Brant U. Kolb, Afton, MN (US);
Brian W. Ostlie, Hudson, WI (US);
Naiyong Jing, Woodbury, MN (US);
Michael Benton Free, St. Paul, MN (US);
Hui Ren, Woodbury, MN (US);
Robert L. Brott, Woodbury, MN (US);
Fei LU, Woodbury, MN (US);
Audrey A. Sherman, St. Paul, MN (US);
Scott M. Tapio, Falcon Heights, MN (US);
Charles David Hoyle, Stillwater, MN (US);
John A. Wheatley, Lake Elmo, MN (US);
Encai Hao, Woodbury, MN (US);
William Blake Kolb, West Lakeland, MN (US);
Brant U. Kolb, Afton, MN (US);
Brian W. Ostlie, Hudson, WI (US);
Naiyong Jing, Woodbury, MN (US);
Michael Benton Free, St. Paul, MN (US);
Hui Ren, Woodbury, MN (US);
Robert L. Brott, Woodbury, MN (US);
Fei Lu, Woodbury, MN (US);
Audrey A. Sherman, St. Paul, MN (US);
Scott M. Tapio, Falcon Heights, MN (US);
Charles David Hoyle, Stillwater, MN (US);
John A. Wheatley, Lake Elmo, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Optical film is disclosed. The optical film includes a binder, a plurality of particles, and a plurality of interconnected voids. The volume fraction of the plurality of interconnected voids in the optical film is not less than about 20%. The weight ratio of the binder to the plurality of the particles is not less than about 1:2.