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. 05, 2026
Filed:
Feb. 19, 2025
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Kyohisa Uchiumi, Kanagawa, JP;
Ren Ishikawa, Kanagawa, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/30 (2006.01); B32B 3/28 (2006.01); B32B 5/02 (2006.01); B32B 27/12 (2006.01); B32B 27/30 (2006.01);
U.S. Cl.
CPC ...
B32B 3/28 (2013.01); B32B 3/30 (2013.01); B32B 5/022 (2013.01); B32B 27/12 (2013.01); B32B 27/306 (2013.01); B32B 2307/726 (2013.01);
Abstract
Provided is a water-stop film including, in the following order, a water-permeable substrate, a water-absorbent polymer-containing layer, and a pressure-sensitive adhesive layer, in which the water-absorbent polymer-containing layer has a cross-sectional shape in which at least a part of the water-absorbent polymer-containing layer protrudes in a direction away from the water-permeable substrate.