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:
Feb. 25, 2025

Filed:

Sep. 06, 2024
Applicant:

Jiaxing Frebang New Material Technology Co., Ltd, Jiaxing, CN;

Inventors:

Xinglei Zhao, Jiaxing, CN;

Pan Jiang, Jiaxing, CN;

Ting Hua, Jiaxing, CN;

Peng Wang, Jiaxing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08F 2/30 (2006.01); C08F 210/06 (2006.01); C08F 214/26 (2006.01); C08F 220/20 (2006.01); C08F 220/24 (2006.01); C08F 222/10 (2006.01); C08L 27/18 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08F 2/30 (2013.01); C08F 210/06 (2013.01); C08F 214/26 (2013.01); C08F 220/20 (2013.01); C08F 220/24 (2013.01); C08F 222/1065 (2020.02); C08L 27/18 (2013.01); C08J 2327/18 (2013.01);
Abstract

A gas permeable polytetrafluoroethylene stretched film is prepared by bending powder of a modified polytetrafluoroethylene resin and powder of a modified fluoropolymer resin and stretching the powder of the modified polytetrafluoroethylene resin and the powder of the modified fluoropolymer resin. The modified polytetrafluoroethylene resin is copolymerised by mixing a tetrafluoroethylene monomer and a modified monomer. The modified monomer is prepared by reaction of hydroxyethyl acrylate, perfluoroalkylethyl acrylate and isocyanate ethylacrylate. The crystallinity in the system is greatly reduced through the multi-branched structure of the modified polytetrafluoroethylene polymer, and at the same time, the strenching strength of the gas permeable polytetrafluoroethylene stretched film is greatly improved through adding the modified fluoropolymer powder. In this manner, the polytetrafluoroethylene stretched film has strong permeability and waterproofness, thereby having stronger safety. The polytetrafluoroethylene stretched film can be used for the protection of precision instruments such as electronics.


Find Patent Forward Citations

Zhao, Xinglei. (2025). Gas permeable polytetrafluoroethylene stretched film and preparation method thereof (U.S. Patent No. 12234335). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12234335

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

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