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:
May. 06, 2025
Filed:
Jan. 12, 2024
Chang Chun Petrochemical Co., Ltd., Taipei, TW;
Tzu-Jung Huang, Taipei, TW;
CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;
Abstract
A polymer film including a first portion and a second portion laminated with the first portion. Each portion independently consists of one or more layers. The first and second layers each independently have a melt index ranging from 3.5 g/10 min to 10.0 g/10 min, and lower than 3.5 g/10 min, respectively. Each layer of the first portion independently has a product of its melt index and a thickness ratio of its thickness to the total thickness of the first and second portions, such that the sum of the product of each layer of the first portion ranges from 0.39 g/10 min to 2.50 g/10 min. Each layer of the second portion independently has a product of its melt index and a thickness ratio of its thickness to the total thickness of the first and second portions, such that the sum of the product of each layer of the second portion ranges from 1.10 g/10 min to 2.95 g/10 min.