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. 28, 2021
Filed:
Sep. 19, 2018
Applicant:
Zeon Corporation, Tokyo, JP;
Inventor:
Hironari Sudeji, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); C08L 53/02 (2006.01); G02B 1/08 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); C08L 53/02 (2013.01); C08L 53/025 (2013.01); G02B 1/08 (2013.01); G06F 3/041 (2013.01); B32B 2250/02 (2013.01); B32B 2250/246 (2013.01); B32B 2307/546 (2013.01); C08J 2353/02 (2013.01); C08J 2453/02 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); G06F 2203/04102 (2013.01);
Abstract
An optical layered film includes at least one A layer including a thermoplastic resin [A] and a B layer formed of a thermoplastic resin [B], wherein the at least one A layer is provided on at least one of surfaces of the B layer, a thickness-direction retardation Rthb of the B layer satisfies the following formula (1), and a tensile elongation at break Sa of a 1.5 mm-thick film (a1) formed of the thermoplastic resin [A] satisfies the following formula (2): (1) |Rthb|≤40 nm, and (2) Sa≥100%.