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:
Feb. 17, 2026
Filed:
Dec. 02, 2020
Lintec Corporation, Tokyo, JP;
LINTEC CORPORATION, Tokyo, JP;
Abstract
An adhesive sheet including an adhesive layer composed of an adhesive having active energy ray curability and ultraviolet ray absorbability, wherein when one surface of the adhesive layer is irradiated with ultraviolet rays having a light amount of 2000 mJ/cmto cure the adhesive layer and an infrared absorption spectrum is then measured for the irradiated surface and non-irradiated surface, the maximum absolute value of absorbance is 0.0001 to 0.012 within a wavenumber range of 700 to 1000 cmin a difference spectrum obtained by subtracting the infrared absorption spectrum of the non-irradiated surface from the infrared absorption spectrum of the irradiated surface, and when the adhesive layer is irradiated with ultraviolet rays having a light amount of 2000 mJ/cmto cure the adhesive layer, the difference in a gel fraction of the adhesive constituting the adhesive layer before and after the irradiation is from 5 to 50 points.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile