Title:
(METH)ACRYLIC COPOLYMER FOR ADHESIVE, AND ADHESIVE FILM USING THE SAME
Document Type and Number:
Japanese Patent JP2022092984
Kind Code:
A
Abstract:
To provide a block copolymer which enables formation of an adhesive layer excellent in heat resistance.SOLUTION: A (meth)acrylic copolymer for an adhesive is produced by dividing a monomer component into an initial monomer component containing a (meth)acrylic monomer forming other structural unit, and a (meth)acrylic monomer forming a structural unit (a-1) having a cyclic ether group and/or a (meth)acrylic monomer forming a structural unit (a-2) having an acidic group, and an additional monomer component containing the (meth)acrylic monomer forming the structural unit (a-1) and/or the (meth)acrylic monomer forming the structural unit (a-2), collectively performs charge polymerization reaction on the initial monomer component, and dividing or continuously charging the additional monomer component to complete reaction from start of the reaction and to completion of the reaction.SELECTED DRAWING: None
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Inventors:
FUKUNAGA NAOTO
KATAKURA AKIRA
KATAKURA AKIRA
Application Number:
JP2020206016A
Publication Date:
June 23, 2022
Filing Date:
December 11, 2020
Export Citation:
Assignee:
OTSUKA CHEMICAL CO LTD
HIGASHIYAMA FILM KK
HIGASHIYAMA FILM KK
International Classes:
C08F220/32; C08F246/00; C09J7/38; C09J133/14
Attorney, Agent or Firm:
Osamu Niguchi
Hideyuki Haratani
Hideyuki Haratani