Koza Novel Materials Korea Co., Ltd.

Lg Chem, Ltd

Ju Yong Seo

Jang Soon Kim

Kwang Su Seo

Sle Lee

Jun Man Choi

Jae Sung Hong

Woo Yeon Kim

Dong Hoon Lim

Ho Kyung Song

Hokyung Song

Provided is a multilayer adhesive tape having excellent step coverage and reworkability. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which the intermediate adhesive layer includes an intermediate adhesive polymer including: a polymerization unit of an alkyl group-containing (meth)acrylate monomer; a polymerization unit of a carboxyl group-containing monomer; and a polymerization unit of an acrylamide-based monomer.

Multilayer adhesive tape

A multilayer adhesive tape in which an interface separation between layers does not occur even at in extremely low temperature atmosphere 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 attaching force among the first outer adhesive layer, the intermediate adhesive layer, and the second outer adhesive layer is maintained after the multilayer adhesive tape is treated in liquefied nitrogen for 15 seconds.

Multi-layer adhesive tape

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 &#x2212;40&#xb0; C. or more and 0&#xb0; C. or less, a glass transition temperature of each of the first outer adhesive layer and the second outer adhesive layer is &#x2212;60&#xb0; C. or more and &#x2212;20&#xb0; 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&#xb0; C. or more and 25&#xb0; C. or less.

Growing community of inventors

Daejeon, South Korea

Ju Yong Seo