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:
Dec. 27, 2022
Filed:
Sep. 20, 2019
Mitsubishi Chemical Corporation, Tokyo, JP;
Takahisa Uchida, Tokyo, JP;
Naoya Miara, Tokyo, JP;
Hidejirou Yoshikawa, Tokyo, JP;
Ryouta Yamamoto, Tokyo, JP;
Shinya Fukuda, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
To provide a double-sided pressure-sensitive adhesive sheet having high flexing resistance that does not suffer flexure and exfoliation in a flexing test that is closer to the actual use environment. A double-sided pressure-sensitive adhesive sheet having no substrate, containing a pressure-sensitive adhesive composition containing a (meth)acrylate ester (co)polymer (A), and having a glass transition temperature (Tg) defined by a Tan δ peak temperature of dynamic viscoelasticity in a range of −50° C. to −20° C., a storage elastic modulus G' at a frequency of 1 Hz and a temperature 100° C. in a range of 2.0×10to 3.0×10Pa, and a thickness of 10 μm or more and 150 μm or less.