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:
Jul. 16, 2019
Filed:
Apr. 09, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
William W. Merrill, Mahtomedi, MN (US);
Timothy J. Hebrink, Scandia, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 55/08 (2006.01); G02B 5/30 (2006.01); C08G 63/181 (2006.01); B29C 55/06 (2006.01); B29D 11/00 (2006.01); C08J 5/18 (2006.01); G02B 1/08 (2006.01); B29C 35/02 (2006.01); B29K 67/00 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
B29C 55/08 (2013.01); B29C 55/06 (2013.01); B29C 55/085 (2013.01); B29D 11/00644 (2013.01); C08G 63/181 (2013.01); C08J 5/18 (2013.01); G02B 5/3083 (2013.01); B29C 35/0277 (2013.01); B29K 2067/003 (2013.01); B29K 2069/00 (2013.01); B29K 2995/0034 (2013.01); B29K 2995/0051 (2013.01); C08J 2367/03 (2013.01);
Abstract
A method of making an optical film includes providing a film, substantially uniaxially orienting the film, and heat setting the oriented film. The film includes a polymeric material capable of developing birefringence.