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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 10071538 B1

PDFFull Text
Date of Patent:
Sep. 11, 2018

Filed:

Jul. 28, 2016

Adhesive film for polarizing plate, polarizing plate including the same and optical display including the same

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Eun Hwan Jeong, Suwon-si, KR;

Yi Eun Kim, Suwon-si, KR;

Yoo Jin Suh, Suwon-si, KR;

In Cheon Han, Suwon-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Rip A Lee

Int. Cl.
CPC ...
C08F 220/10 (2006.01); C09J 133/00 (2006.01); G02B 5/30 (2006.01); B32B 7/12 (2006.01); C08F 220/18 (2006.01); G02F 1/1335 (2006.01); C09J 133/08 (2006.01); C08G 18/62 (2006.01); C09J 133/06 (2006.01); C09J 175/04 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C09J 7/38 (2018.01); C09J 7/22 (2018.01);
U.S. Cl.
CPC ...
B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/325 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); C08F 220/18 (2013.01); C08G 18/6225 (2013.01); C09J 7/22 (2018.01); C09J 7/38 (2018.01); C09J 133/066 (2013.01); C09J 133/08 (2013.01); C09J 175/04 (2013.01); G02B 5/3041 (2013.01); G02F 1/133528 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/42 (2013.01); B32B 2307/514 (2013.01); B32B 2405/00 (2013.01); B32B 2457/202 (2013.01); C09J 2201/622 (2013.01); C09J 2203/318 (2013.01); C09J 2433/00 (2013.01); G02B 5/3025 (2013.01);
Abstract

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition for polarizing plates, which includes a non-carboxylic acid (meth)acrylic copolymer, an isocyanate curing agent, and an epoxy curing agent, wherein the adhesive film has a modulus at 85° C. of about 0.1 MPa to about 0.8 MPa and a modulus ratio of about 3 or less, as calculated by the equation, Modulus ratio=G'(25° C.)/G′(85° C.), where G′(25° C.) is modulus (unit: MPa) at 25° C. of an adhesive film and G′(85° C.) is modulus (unit: MPa) at 85° C. of the adhesive film.

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