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:
Mar. 24, 2026
Filed:
May. 27, 2022
SK Microworks Co., Ltd., Gyeonggi-do, KR;
Joo Ho Yang, Gyeonggi-do, KR;
Chul Kyu Kim, Gyeonggi-do, KR;
Yong Deuk Kim, Gyeonggi-do, KR;
Seung Kyun Kim, Gyeonggi-do, KR;
Microworks Co., ltd., Chungcheongbuk-do, KR;
Abstract
The polyester film according to the embodiment prepared while the crystallinity of a copolymerized polyester film is controlled can be improved in thermal properties and chemical properties. Specifically, the polyester film has not only an excellent shrinkage rate with respect to temperature, but also excellent adhesive strength by a solvent even when applied to gravure printing, UV curing printing, and VSOP printing, making it suitable for a heat shrinkage process and a seaming process. In addition, the polyester film can be applied to a recycling process since it has an appropriate change in crystals during washing with an aqueous solution of NaOH, and the generation of fusion is suppressed even upon prolonged high-temperature drying.