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.

Date of Patent:
Apr. 14, 2025

Filed:

Feb. 01, 2022
Applicant:

SK Microworks Co., Ltd., Gyeonggi-do, KR;

Inventors:

Dae Seong Oh, Gyeonggi-do, KR;

Sun Hwan Kim, Gyeonggi-do, KR;

Jin Woo Lee, Gyeonggi-do, KR;

Heung Sik Kim, Gyeonggi-do, KR;

Assignee:

SK MICROWORKS CO., LTD., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2005.12); B32B 27/28 (2005.12); C08G 69/32 (2005.12); C08G 73/10 (2005.12); C08G 73/14 (2005.12);
U.S. Cl.
CPC ...
C08J 5/18 (2012.12); B32B 27/281 (2012.12); C08G 69/32 (2012.12); C08G 73/1039 (2012.12); C08G 73/1067 (2012.12); C08G 73/1078 (2012.12); C08G 73/14 (2012.12); B32B 2307/412 (2012.12); B32B 2307/51 (2012.12); B32B 2457/20 (2012.12); C08J 2377/06 (2012.12); C08J 2379/08 (2012.12);
Abstract

The embodiments relate to a polyamide-based film that is excellent in optical properties and mechanical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. There are provided a polyamide-based film, which comprises a polyamide-based polymer and has a plasticity characteristic value represented by the following equation of 18.45 to 19.97%, a process for preparing the same, and a cover window and a display device comprising the same: Plasticity characteristic value (%)=(100−nIT)/(HIT/HM). In this equation, nIT, HIT, and HM are measured according to the ISO 14577 standard with a nanoindenter, nIT is the elasticity (%), HIT is the indentation hardness (N/mm), and HM is the composite hardness (N/mm).


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