Title:
粘着性樹脂組成物、及びそれを用いた保護フィルム
Document Type and Number:
Japanese Patent JP7264053
Kind Code:
B2
Abstract:
Provided is an adhesive composition that has adequate adhesive strength when affixed to an adherend having fine surface irregularities and that does not readily increase in adhesive strength even when exposed to high temperatures such as during transport and storage. An adhesive resin composition having a block copolymer that satisfies 1) and 2) as the main component and containing an α-methylstyrene resin and a terpene resin. 1) A block copolymer having the structural formula A-B-A and/or A-B that includes polymer block A and polymer block B. Polymer block A: a polymer block in which units derived from an aromatic alkenyl compound monomer unit are configured as main repeating units, the polymer block mainly comprising units derived from an aromatic alkenyl compound monomer unit. Polymer block B: an aromatic alkenyl monomer-conjugated diene monomer copolymer block randomly containing units derived from conjugated diene monomer units and aromatic alkenyl compound monomer units. 2) The hydrogenation rate for double bonds derived from the conjugated diene monomer units in polymer block B is 90 mol% or higher.
Inventors:
Fujino Hidetoshi
Yukazu Oki
Yukazu Oki
Application Number:
JP2019539420A
Publication Date:
April 25, 2023
Filing Date:
August 23, 2018
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
C09J153/02; C09J7/38; C09J11/06
Domestic Patent References:
| JP2012117013A | ||||
| JP2016098238A | ||||
| JP2007126569A | ||||
| JP2017057382A | ||||
| JP2015028130A | ||||
| JP2015054867A | ||||
| JP2011162747A |
Foreign References:
| WO2013094760A1 | ||||
| WO2017150430A1 | ||||
| WO2018142982A1 | ||||
| WO2014132780A1 |