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. 09, 2023
Filed:
Apr. 27, 2021
Threebond Co., Ltd., Tokyo, JP;
THREEBOND CO., LTD., Tokyo, JP;
Abstract
The present invention makes it possible to maintain a high 180-degree peel strength of a photocurable composition having a film shape at 25° C. in the state of not being cured against untreated PET as an adherend when bonding is performed by lamination at normal temperature. A photocurable composition having a film shape at 25° C. in a state of not being cured, which contains the following components (A) to (C) and in which the photocurable composition contains 1 to 45 parts by mass of the component (B) with respect to 100 parts by mass of the component (A), a temperature of tan δ=1 is 30° C. to 60° C. before curing, a storage elastic modulus at 25° C. is 10.0×10Pa or less after curing. Component (A): urethane-modified (meth)acrylate oligomer Component (B): film forming agent Component (C): photoinitiator