Nitta Corporation

Samsung Display Co., Ltd.

Minoru Nanchi

Shinichiro Kawahara

Hak-Sun Kim

Sang-Hyun Lim

Satoshi Yamaguchi

Dong-Sun Lee

Dae-Guen Choi

Keisuke Sako

Yuta Irie

Koji Yamashita

Ayumi Nagao

A thermosensitive adhesive contains a side chain crystal polymer having a melting point of 20-30&#xb0; C., and a tackifier. The side chain crystal polymer is obtainable by adding a metal chelate compound in the following amount of addition (A) into the following copolymer, followed by a crosslinking reaction. Adhesive strength is to be deteriorated at a temperature below the melting point. The copolymer is obtainable by polymerizing 25-30 parts by weight of (meth)acrylate having a straight-chain alkyl group having 16 to 22 carbon atoms, 60-65 parts by weight of (meth)acrylate having an alkyl group having 1 to 6 carbon atoms, 1-10 parts by weight of a polar monomer, and 1-10 parts by weight of a reactive fluorine compound. The amount of addition (A) is 3-10 parts by weight with respect to 100 parts by weight of a copolymer.

Thermosensitive adhesive

Disclosed is an acrylate based adhesive composition for optical use that includes: a copolymer prepared by polymerizing an alkyl (meth)acrylate (wherein the alkyl is a C16 to C22 linear alkyl group) in an amount of about 1 to about 10 parts by weight, an alkyl (meth)acrylate (wherein the alkyl is a C1 to C12 alkyl group) in an amount of about 70 to about 98 parts by weight, and a polar monomer in an amount of about 1 to about 20 parts by weight; and a cross-linking agent. The cross-linking agent is included in an amount of about 0.5 to 5 parts by weight based on 100 parts by weight of the copolymer.

Acrylate based adhesive composition for optical use, acrylate based adhesive sheet for optical use, and method for separating optical component using the same

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Yamatokoriyama, Japan

Minoru Nanchi