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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 11668859 B1

PDFFull Text
Date of Patent:
Jun. 06, 2023

Filed:

Aug. 17, 2017

Optical film having excellent adhesive strength and durability, and polarizing film comprising same

Applicant:

Anhui Hemei Materials Technology Co., Ltd., Hefei, CN;

Inventors:

Yirang Lim, Daejeon, KR;

Kyoung Won Kim, Daejeon, KR;

Sungin Kim, Daejeon, KR;

Jun Wuk Park, Daejeon, KR;

Assignee:

ANHUI HEMEI MATERIALS TECHNOLOGY CO., LTD., Hefei, CN;

Attorney:

Cheng-Ju Chiang

Primary Examiner:

Callie E Shosho

Assistant Examiner:

Steven A Rice

Int. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 1/04 (2006.01); G02B 5/30 (2006.01); C09D 167/02 (2006.01); G02B 5/22 (2006.01); C08J 7/04 (2020.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C09D 7/61 (2018.01); C09D 5/00 (2006.01); C09D 151/08 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/0427 (2020.01); C09D 5/00 (2013.01); C09D 7/61 (2018.01); C09D 151/08 (2013.01); C09D 167/02 (2013.01); C09D 167/025 (2013.01); G02B 1/04 (2013.01); G02B 5/22 (2013.01); G02B 5/30 (2013.01); C08J 2333/00 (2013.01); C08J 2451/08 (2013.01); C08J 2467/02 (2013.01); C08J 2475/12 (2013.01);
Abstract

The present specification relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer includes a polyester-based resin and a polyurethane-based resin, and is formed using a composition having a minimum film-forming temperature difference of 40° C. to 110° C. between the polyester-based resin and the polyurethane-based resin, and a polarizing plate including the same.

Find Patent Forward Citations

Quick Actions:

Lim, Yirang. (2023). Optical film having excellent adhesive strength and durability, and polarizing film comprising same (U.S. Patent No. 11668859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11668859

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

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