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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 11267998 B1

PDFFull Text
Date of Patent:
Mar. 08, 2022

Filed:

May. 23, 2018

Pressure-sensitive adhesive sheet

Applicant:

Nitto Denko Corporation, Ibaraki, JP;

Inventors:

Naoaki Higuchi, Ibaraki, JP;

Shuuhei Yamamoto, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki, unknown;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Patricia L Nordmeyer

Int. Cl.
CPC ...
C09J 7/38 (2018.01); C09J 7/22 (2018.01); B32B 7/14 (2006.01); B32B 27/06 (2006.01); C09J 133/08 (2006.01); C09J 7/25 (2018.01);
U.S. Cl.
CPC ...
C09J 133/08 (2013.01); B32B 7/14 (2013.01); B32B 27/065 (2013.01); C09J 7/22 (2018.01); C09J 7/255 (2018.01); C09J 7/38 (2018.01); C09J 7/385 (2018.01); C09J 2301/124 (2020.08); C09J 2301/20 (2020.08); C09J 2407/00 (2013.01); C09J 2429/00 (2013.01); C09J 2433/00 (2013.01); C09J 2467/006 (2013.01); C09J 2469/00 (2013.01); C09J 2475/00 (2013.01); Y10T 428/28 (2015.01);
Abstract

Provided is a PSA sheet capable of suitably preventing bubble formation caused by outgassing. This invention provides a PSA sheet comprising a PSA layer that forms an adhesive face. In an aging test where the adhesive face is press-bonded to a glass plate and stored at 50° C. for 24 hours, the PSA sheet has at least 5% post-aging non-bonding area Sa, with Sa defined as the ratio of all areas non-bonding to the glass plate relative to the total area of the adhesive face. The non-bonding areas have parts linearly extending along the adhesive face.

Find Patent Forward Citations

Higuchi, Naoaki. (2022). Pressure-sensitive adhesive sheet (U.S. Patent No. 11267998). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11267998

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

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