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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.:

US 10240033 B1

PDFFull Text
Date of Patent:
Mar. 26, 2019

Filed:

Mar. 10, 2015

Optical film and method for manufacturing same, polarization plate, and liquid crystal display apparatus

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Shigeaki Nimura, Kanagawa, JP;

Makoto Kamo, Kanagawa, JP;

Shusuke Arita, Kanagawa, JP;

Yutaka Nozoe, Kanagawa, JP;

Katsumi Sasata, Kanagawa, JP;

Assignee:

FUJIFILM CORPORATION, Tokyo, JP;

Attorneys:

Edwards Neils, LLC

Jean C. Edwards, Esq.

Primary Examiner:

Anthony J Frost

Int. Cl.
CPC ...
C08L 33/12 (2006.01); C08J 5/18 (2006.01); G02F 1/1335 (2006.01); G02B 5/30 (2006.01); B29D 11/00 (2006.01); C08K 5/13 (2006.01); C08K 5/3462 (2006.01); C08L 45/00 (2006.01); G02F 1/1333 (2006.01); B29K 23/00 (2006.01); B29K 25/00 (2006.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01); B29K 267/00 (2006.01);
U.S. Cl.
CPC ...
C08L 33/12 (2013.01); B29D 11/00644 (2013.01); B29D 11/00788 (2013.01); C08J 5/18 (2013.01); C08K 5/13 (2013.01); C08K 5/3462 (2013.01); C08L 45/00 (2013.01); G02B 5/3033 (2013.01); G02F 1/1335 (2013.01); B29K 2023/38 (2013.01); B29K 2025/06 (2013.01); B29K 2025/08 (2013.01); B29K 2033/12 (2013.01); B29K 2105/0085 (2013.01); B29K 2267/04 (2013.01); B29K 2995/0018 (2013.01); B29K 2995/0068 (2013.01); B29K 2995/0069 (2013.01); G02F 1/133528 (2013.01); G02F 2001/133311 (2013.01); Y10T 428/105 (2015.01); Y10T 428/1036 (2015.01); Y10T 428/265 (2015.01); Y10T 428/31786 (2015.04); Y10T 428/31935 (2015.04); Y10T 428/31938 (2015.04);
Abstract

The optical film of the present invention is an optical film including a thermoplastic resin, in which the optical film has a moisture permeability of 70 g/m/day or less (in terms of a film thickness of 40 μm), and contains a moisture permeability-reducing compound having a molecular weight of 200 or more and satisfying Formula (1) described below. Formula (1) A/B≤0.9 (A represents a moisture permeability of an optical film in a case in which 10 mass % of the moisture permeability-reducing compound is added to the mass of the thermoplastic resin, and B represents a moisture permeability of an optical film in a case in which the thermoplastic resin is included and the moisture permeability-reducing compound is not added.)

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