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.:
Date of Patent:
Sep. 09, 2025
Filed:
Jul. 11, 2023
SK Innovation Co., Ltd., Seoul, KR;
Chun Ho Kim, Daejeon, KR;
Cheol Min Yun, Daejeon, KR;
SK Innovation Co., Ltd., Seoul, KR;
Abstract
Provided is an optical multilayer structure including a shatterproof layer including a polyimide resin including a siloxane structure and an adhesion promoting layer. Since the adhesion promoting layer and the shatterproof layer of the optical multilayer structure according to one implementation are connected by a chemical bond (imide bond), interlayer adhesiveness is high and durability is excellent. In addition, the optical multilayer structure according to one implementation has excellent heat resistance, so that curling is reduced to minimize substrate bending, has high surface hardness, so that mechanical properties are excellent, and has a low haze and is transparent, so that optical properties are excellent.