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:
Aug. 17, 2021
Filed:
May. 18, 2018
Lg Chem, Ltd., Seoul, KR;
Sle Lee, Daejeon, KR;
Dong Hoon Lim, Daejeon, KR;
Ju Yong Seo, Daejeon, KR;
Jun Man Choi, Daejeon, KR;
Woo Yeon Kim, Daejeon, KR;
Ho Kyung Song, Daejeon, KR;
Jae Sung Hong, Daejeon, KR;
Jang Soon Kim, Daejeon, KR;
Kwang Su Seo, Daejeon, KR;
Abstract
A multilayer adhesive tape exhibiting high step coverage and having both high reworkability and excellent punchability is provided. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which a glass transition temperature of the intermediate adhesive layer is −40° C. or more and 0° C. or less, a glass transition temperature of each of the first outer adhesive layer and the second outer adhesive layer is −60° C. or more and −20° C. or less, and a difference in glass transition temperature between each of the first outer adhesive layer and the second outer adhesive layer and the intermediate adhesive layer is 5° C. or more and 25° C. or less.