Title:
ポリエステル、フィルムおよび接着剤組成物、ならびに接着シート、積層体およびプリント配線板
Document Type and Number:
Japanese Patent JP7405298
Kind Code:
B2
Abstract:
[Problem] To provide a polyester that exhibits superior solvent solubility, heat resistance, and adhesion strength and superior dielectric properties such as a low dielectric constant and dielectric loss tangent, a film, and an adhesive composition, as well as an adhesive sheet, a laminate and a printed wiring board using the same. [Solution] A polyester containing monomer (A) and monomer (B) as constituent components, wherein if the total amount of all of the constituent components is 100 mol%, monomer (A) constitutes at least 25 mol%, monomer (B) constitutes at least 10 mol%, and the total of monomer (A) and monomer (B) is at least 60 mol%. Monomer (A): A polycarboxylic acid component and/or polyhydric alcohol component having a cyclic structure. Monomer (B): A polycarboxylic acid component and/or polyhydric alcohol component having a carbon chain of at least 10 contiguous groups.
Inventors:
Koichi Sakamoto
Ko Miura
Tetsuo Kawakusu
Ko Miura
Tetsuo Kawakusu
Application Number:
JP2023079622A
Publication Date:
December 26, 2023
Filing Date:
May 12, 2023
Export Citation:
Assignee:
Toyobo MC Co., Ltd.
International Classes:
C08G63/123; B32B27/00; B32B27/36; C08G63/13; C08G63/137; C09J7/30; C09J167/00; H05K1/03
Domestic Patent References:
| JP2012207207A | ||||
| JP2011046771A | ||||
| JP1221469A | ||||
| JP6128363A |
Foreign References:
| WO2018218348A1 | ||||
| WO2018218347A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation ASFI International Patent Office