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:
Apr. 21, 2025
Filed:
Feb. 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 is provided. The polymer film sequentially includes a first layer, a second layer and a third layer, where the two surfaces of the second layer are in contact with the first layer and the third layer, respectively. The first layer has a first melt index, the second layer has a second melt index, and the third layer has a third melt index. The second melt index ranges from 3.5 g/10 min to 10.0 g/10 min, the first melt index and the third melt index are independently lower than 3.5 g/10 min, and the difference between the second melt index and the first melt index, as well as the difference between the second melt index and the third melt index independently range from 0.2 g/10 min to 8.5 g/10 min.