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:
Sep. 12, 2023
Filed:
Jul. 15, 2019
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Huiwen Tai, Lake Elmo, MN (US);
Joan M. Frankel, Woodbury, MN (US);
Stephen P. Maki, North St. Paul, MN (US);
Diane North, Inver Grove Heights, MN (US);
Robert R. Owings, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/08 (2006.01); B32B 7/023 (2019.01); B32B 7/022 (2019.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/06 (2006.01); G02B 5/26 (2006.01);
U.S. Cl.
CPC ...
B32B 7/023 (2019.01); B32B 7/022 (2019.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/06 (2013.01); G02B 5/085 (2013.01); G02B 5/0875 (2013.01); G02B 5/26 (2013.01); B32B 2307/404 (2013.01); B32B 2307/412 (2013.01); B32B 2307/414 (2013.01); B32B 2307/416 (2013.01); B32B 2307/54 (2013.01); B32B 2307/732 (2013.01); G02B 5/0866 (2013.01);
Abstract
A stretchable reflective color-shifting film comprises a stretchable transparent polymer layer; a semi-transmissive metal layer; a transparent spacer layer; a reflective metal layer; an adhesive layer; and a stretchable base film layer. When the film body is stretched by 25%, the peak total reflectance stretched is at 80% of the peak total reflectance when the film body is unstretched according to the Total Reflectivity Test.