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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.:

US 12767859 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Aug. 07, 2024

Gas-permeable hot-melt sealing film for healthcare packaging

Applicant:

Benq Materials Corporation, Taoyuan City, TW;

Inventors:

Yen-Ling Lin, Taoyuan City, TW;

Ching-Huang Chen, Taoyuan City, TW;

Kuo-Hsuan Yu, Taoyuan City, TW;

Assignee:

BenQ Materials Corporation, Taoyuan City, TW;

Attorney:

CKC & Partners Co., LLC

Primary Examiner:

Hai Vo

Int. Cl.
CPC ...
C09J 7/35 (2018.01); A61J 1/03 (2023.01); B65D 75/36 (2006.01); C09J 7/21 (2018.01); C09J 11/08 (2006.01); D04H 1/4291 (2012.01); D04H 1/56 (2006.01); D06N 3/00 (2006.01); D06N 3/04 (2006.01); D06N 3/12 (2006.01);
U.S. Cl.
CPC ...
C09J 7/35 (2018.01); A61J 1/035 (2013.01); B65D 75/36 (2013.01); C09J 7/21 (2018.01); C09J 11/08 (2013.01); D04H 1/4291 (2013.01); D04H 1/56 (2013.01); D06N 3/0011 (2013.01); D06N 3/0038 (2013.01); D06N 3/0061 (2013.01); D06N 3/0088 (2013.01); D06N 3/045 (2013.01); D06N 3/128 (2013.01); C09J 2301/304 (2020.08); D06N 2201/0254 (2013.01); D06N 2209/106 (2013.01); D06N 2209/16 (2013.01); D06N 2211/00 (2013.01); D10B 2321/021 (2013.01); D10B 2505/10 (2013.01); D10B 2509/00 (2013.01);
Abstract

The present disclosure is to provide a gas permeable hot-melt sealing film for healthcare packaging. The gas permeable hot-melt sealing film includes an polyolefin spunbondeded nonwoven fabric substrate; and a water-based hot-melt adhesive coating layer coated on the substrate including voids, wherein the coating amount of the water-based hot-melt adhesive is in the range of 6 g/mto 35 g/mand the surface void ratio thereof is in the range 0.5% to 6.0%. The gas permeable hot-melt sealing coating film of the present disclosure has sufficient gas permeability, and satisfied seal strength and peelability after sealing around with flexible sheet or blister container.

Find Patent Forward Citations

Lin, Yen-Ling. (2026). Gas-permeable hot-melt sealing film for healthcare packaging (U.S. Patent No. 12767859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767859

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

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