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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 9804307 B1

PDFFull Text
Date of Patent:
Oct. 31, 2017

Filed:

Jun. 17, 2014

Multilayer optical film, method of producing the same and polarizer comprising the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Jun-Geun Um, Daejeon, KR;

Nam-Jeong Lee, Daejeon, KR;

Sang-Min Kwak, Daejeon, KR;

Suk-Il Youn, Daejeon, KR;

Sei-Jung Park, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:

Dentons US LLP

Primary Examiner:

Tahseen N Khan

Int. Cl.
CPC ...
G02B 5/20 (2006.01); G02B 5/30 (2006.01); G02B 5/22 (2006.01); B29D 11/00 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); G02B 1/14 (2015.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); B29D 11/0073 (2013.01); B29D 11/00644 (2013.01); B32B 27/08 (2013.01); B32B 27/308 (2013.01); G02B 1/14 (2015.01); G02B 5/3033 (2013.01); B29K 2033/12 (2013.01); B29K 2105/0085 (2013.01); B32B 2250/03 (2013.01); B32B 2307/306 (2013.01); B32B 2307/402 (2013.01); B32B 2307/412 (2013.01); B32B 2307/42 (2013.01); B32B 2457/20 (2013.01); B32B 2551/00 (2013.01); G02B 5/223 (2013.01); G02B 5/305 (2013.01);
Abstract

The present disclosure relates to a multilayer optical film including a first film layer formed of a thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of a triazine-based ultraviolet absorber; a second film layer formed of a thermoplastic acrylic resin composition including 0.1 to 5.0 parts by weight of at least one ultraviolet absorber selected from a group consisting of a triazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, an oxanilide-based ultraviolet absorber and a cyanoacrylate-based ultraviolet absorber; and a third film layer formed of the thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of the triazine-based ultraviolet absorber, with respect to 100 parts by weight of the thermoplastic acrylic resin composition, a method of manufacturing the same, and a polarizing plate including the same.

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