Title:
ポリエステル系粘着剤組成物、ポリエステル系粘着剤及び粘着シート
Document Type and Number:
Japanese Patent JP7439561
Kind Code:
B2
Abstract:
To provide a polyester-based adhesive composition which is excellent in chemical resistance, and is excellent in adhesion with various adherends such as metal and a polyolefin member.SOLUTION: A polyester-based adhesive composition contains a polyester-based resin (A) which repeatedly contains a structural unit of the following expression (1) that is composed of a polyester block (X) derived from a polyester-based oligomer (x) containing a structural unit derived from polyvalent carboxylic acid (a1) and a structural unit derived from polyol (a2), and a polymer block (Y) derived form a polymer (y). Expression (1): X-Y. A grass transition temperature (Tgβ) of the polymer (y) is -80 to -15°C, and a glass transition temperature (Tgα) of the polyester-based oligomer (x) is higher than the glass transition temperature (Tgβ) of the polymer (y).SELECTED DRAWING: None
Inventors:
Kento Sakamoto
Application Number:
JP2020029268A
Publication Date:
February 28, 2024
Filing Date:
February 25, 2020
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08G63/12; C09J167/00; C09J7/10; C09J7/20; C09J11/06
Domestic Patent References:
| JP2010235647A | ||||
| JP2018109150A | ||||
| JP2019023277A | ||||
| JP63120718A | ||||
| JP2015063668A |
Foreign References:
| EP3480234A1 |
Attorney, Agent or Firm:
Yukihiko Saitou
井▲崎▼ 愛佳
Yuko Nishito
Shigeyasu Terao
井▲崎▼ 愛佳
Yuko Nishito
Shigeyasu Terao