Koza Novel Materials Korea Co., Ltd.

Lg Chem, Ltd

Jun Man Choi

Jang Soon Kim

Kwang Su Seo

Sle Lee

Jae Sung Hong

Woo Yeon Kim

Ho Kyung Song

Dong Hoon Lim

Ju Yong Seo

Hu Young Yoon

Joo Hyun Lee

Sang Hwan Kim

Won Gu Choi

Chi Gwan An

Hokyung Song

Su Eun Lee

The present application relates to an adhesive composition and an adhesive film, wherein the adhesive composition includes a prepolymer and a third (meth)acrylate monomer, and the prepolymer is produced by polymerization of a mixture including a photopolymerizable functional group-containing first (meth)acrylate monomer and a second (meth)acrylate monomer.

Adhesive composition and adhesive film

An adhesive composition and an adhesive film including a cured product thereof is provided.

Adhesive composition and adhesive film including cured product thereof

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 is provided, including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially. At least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.

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 method of preparing an acrylic adhesive, in which the durability of an adhesive film may be improved through additional photocuring and the residual components according to solution photopolymerization are efficiently removed, and an adhesive film prepared therefrom.

Method of preparing acrylic adhesive and adhesive film prepared therefrom

A method for manufacturing a low molecular weight acrylic resin, and more particularly, to a method for manufacturing a low molecular weight acrylic resin having a high conversion rate and a low poly dispersion index includes maintaining the temperature of a reacting part with a screw stirrer at a specific temperature during a continuous polymerization of a solvent-free acrylic composition in a continuous flow reactor having the reacting part.

Method for manufacturing low molecular weight acrylic resin

A multilayer adhesive film is provided including: a first outer adhesive layer; a second outer adhesive layer; and an intermediate adhesive layer disposed between the first outer adhesive layer and the second outer adhesive layer. The multilayer adhesive film has both high step absorbency and excellent reworkability.

Multilayer adhesive film

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

Jun Man Choi