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:
Nov. 03, 2026

Filed:

Nov. 30, 2022
Applicant:

Microworks Co., Ltd., Iwol-myeon, KR;

Inventors:

Seokin Lee, Suwon-si, KR;

Kweon Hyung Han, Suwon-si, KR;

Assignee:

MICROWORKS CO., LTD., Iwol-myeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/36 (2006.01); B32B 7/02 (2019.01); B32B 27/18 (2006.01);
U.S. Cl.
CPC ...
B32B 27/36 (2013.01); B32B 7/02 (2013.01); B32B 27/18 (2013.01); B32B 2270/00 (2013.01); B32B 2307/7163 (2013.01); B32B 2367/00 (2013.01);
Abstract

A polyester film includes a laminate including a plurality of first layers and a plurality of second layers alternately stacked on the plurality of first layers. Each of the first layers includes lactic acid residues, and each of the second layers includes terephthalate residues and adipic acid residues. The polyester film has an average equivalent noise level of 78 dB or less from a noise level test for film spinning the polyester film 180 degrees at 800 rpm for 30 seconds or more, and has Young's modulus of 280 kgf/mmor less.


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Lee, Seokin. (2026). Polyester film and packaging material (U.S. Patent No. 12779831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12779831

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

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