logo

For the Inventor, By the Inventor

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 11421060 B1

PDFFull Text
Date of Patent:
Aug. 23, 2022

Filed:

Mar. 26, 2019

Dope solution for preparing optical film and optical film using the same

Applicant:

Lg Mma Corp., Yeosu-si, KR;

Inventors:

Sung Il Park, Daejeon, KR;

Seong Jang Jeon, Daejeon, KR;

Sang Seok Park, Daejeon, KR;

Eun Jin Jeon, Daejeon, KR;

Sang Eob Na, Seoul, KR;

Assignee:

LG MMA CORP., Yeosu-si, KR;

Attorney:

Li & Cai Intellectual Property (USA) Office

Primary Examiner:

Ricky D Shafer

Int. Cl.
CPC ...
C08F 220/14 (2006.01); C08J 3/11 (2006.01); C08J 5/18 (2006.01); G02F 1/1335 (2006.01); G02B 1/14 (2015.01); C08J 3/205 (2006.01); B29L 11/00 (2006.01); B29C 41/02 (2006.01); B29C 55/02 (2006.01); B29K 33/00 (2006.01); B29C 55/12 (2006.01); B29C 55/04 (2006.01);
U.S. Cl.
CPC ...
C08F 220/14 (2013.01); C08J 3/11 (2013.01); C08J 3/205 (2013.01); C08J 5/18 (2013.01); G02B 1/14 (2015.01); G02F 1/133528 (2013.01); B29C 41/02 (2013.01); B29C 55/02 (2013.01); B29C 55/04 (2013.01); B29C 55/12 (2013.01); B29K 2033/12 (2013.01); B29L 2011/0066 (2013.01); C08F 2800/20 (2013.01); C08J 2333/12 (2013.01);
Abstract

Provided are a dope solution for preparing a polarizing plate protective film by a solution casting method using an acrylic polymer with high thermal resistance and high molecular weight, and a polarizing plate protective film using the same. The polarizing plate protective film using the dope solution according to the present invention has excellent optical properties, high tensile strength, low hygroscopic properties, and high thermal resistance, and thus, has the effects of excellent dimensional stability, and excellent adhesion with a polyvinyl alcohol film.

Find Patent Forward Citations

Park, Sung. (2022). Dope solution for preparing optical film and optical film using the same (U.S. Patent No. 11421060). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11421060

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…