Title:
フィルム、樹脂組成物およびポリアミドイミド樹脂の製造方法
Document Type and Number:
Japanese Patent JP6675509
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing a film that is suitable for use as a front surface plate for a flexible display or the like, includes a polyamide-imide resin that is highly imidized, and has high surface hardness. The present invention provides a film that includes a polyamide-imide resin A that: has at least a structural unit derived from a diamine, a structural unit derived from a dicarboxylic acid, and a structural unit derived from a tetracarboxylic acid dianhydride; and, as measured by two-dimensional NMR, is at least 95% imidized.
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Inventors:
Miyamoto Aki
Masui hope
Kanasaka
Junichi Ikeuchi
Masui hope
Kanasaka
Junichi Ikeuchi
Application Number:
JP2019072210A
Publication Date:
April 01, 2020
Filing Date:
April 04, 2019
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C08G73/14
Domestic Patent References:
| JP2016162403A | ||||
| JP2009013165A | ||||
| JP2008045054A |
Foreign References:
| WO2009063742A1 | ||||
| WO2013147083A1 |
Attorney, Agent or Firm:
Michiko Matsutani
Kenichi Morizumi
Iwako Iwaki
Kenichi Morizumi
Iwako Iwaki