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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 9581730 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Jun. 19, 2014

Substrate film

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Se Woo Yang, Daejeon, KR;

Sung Hyun Nam, Daejeon, KR;

Kyun Il Rah, Daejeon, KR;

Yoon Tae Hwang, Daejeon, KR;

Jong Hyun Jung, Daejeon, KR;

Hye Min Yu, Daejeon, KR;

Ji Young Hwang, Daejeon, KR;

Eun Suk Park, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Thao T Tran

Int. Cl.
CPC ...
G02B 1/08 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/40 (2006.01); B29C 55/00 (2006.01); C08J 5/18 (2006.01); B32B 27/00 (2006.01); B29C 55/02 (2006.01); B29K 55/00 (2006.01); B29K 75/00 (2006.01); B29L 9/00 (2006.01); B29C 55/04 (2006.01);
U.S. Cl.
CPC ...
G02B 1/08 (2013.01); B29C 55/005 (2013.01); B29C 55/02 (2013.01); B29C 55/023 (2013.01); B32B 27/00 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/40 (2013.01); C08J 5/18 (2013.01); B29C 55/04 (2013.01); B29K 2055/00 (2013.01); B29K 2075/00 (2013.01); B29L 2009/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2307/42 (2013.01); B32B 2551/00 (2013.01); C08J 2375/04 (2013.01);
Abstract

There are provided a substrate film, a laminate, and method of manufacturing a polarizing film. The present application provides a substrate film capable of effectively manufacturing a polarizing film having a thickness of about 10 μm or less, about 8 μm or less, about 7 μm or less, about 6 μm or less, or about 5 μm or less and having an excellent function such as polarization performance, a laminate, and a method of manufacturing the same. According to the invention, it is possible to prevent tearing, curling, or the like from occurring in the elongation process and manufacture a polarizing film by easily elongating a polarization material such as a PVA-based resin.

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