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:
Jan. 21, 2025
Filed:
Oct. 12, 2021
SK Microworks Co., Ltd., Gyeonggi-do, KR;
SK Microworks America, Inc., Covington, GA (US);
Daeyong Shin, Sugar Hill, GA (US);
Yongdeuk Kim, Jeollanam-do, KR;
Jung Kyu Lee, Seoul, KR;
Jaehyong Son, Snellville, GA (US);
Eugene Jung, Lawrenceville, GA (US);
SK MICROWORKS AMERICA, INC., Covington, GA (US);
SK MICROWORKS CO., LTD., Gyeonggi-Do, KR;
Abstract
The embodiments relate to a heat shrinkable film and a process for regenerating a polyester container using the same. The heat shrinkable film comprises a copolymerized polyester resin comprising a diol component and a dicarboxylic acid component and has a heat shrinkage rate of 30% or more in the main shrinkage direction upon thermal treatment at a temperature of 80° C. for 10 seconds, a melting point of 190° C. or higher as measured by differential scanning calorimetry, and a peak temperature (Tp) of 95° C. to 115° C. as measured in the endothermic and exothermic curve (heat flow) by differential scanning calorimetry. It not only solves the environmental problem by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.