Title:
ポリイミドフィルムの製造方法、ポリイミドフィルム、ポリアミド酸溶液及び感光性組成物
Document Type and Number:
Japanese Patent JP6847054
Kind Code:
B2
Abstract:
A method for producing a polyimide film, comprising the steps of: obtaining a polyamic acid solution having a viscosity of 5 to 150 cps by preparing a raw material mixture liquid that contains a solvent, a tetracarboxylic dianhydride represented by a specific general formula, and an aromatic diamine represented by a specific general formula, and that has a total content of the tetracarboxylic dianhydride and the aromatic diamine of 15% by mass or less, and reacting the tetracarboxylic dianhydride and the aromatic diamine with each other in the raw material mixture liquid to form a polyamic acid having a repeating unit represented by a specific general formula; obtaining a polyimide-forming mixture liquid by adding a compound represented by a specific general formula to the polyamic acid solution; and obtaining a film made of a polyimide represented by a specific general formula by forming a film made of the polyimide-forming mixture liquid, followed by imidization of the polyamic acid in the film.
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Inventors:
Shinichi Komatsu
Kunihiro Noda
Hiroki Chisaka
Shioda Dai
Kunihiro Noda
Hiroki Chisaka
Shioda Dai
Application Number:
JP2017562535A
Publication Date:
March 24, 2021
Filing Date:
January 12, 2017
Export Citation:
Assignee:
eneos corporation
Tokyo Ohka Kogyo Co., Ltd.
Tokyo Ohka Kogyo Co., Ltd.
International Classes:
B29D7/01; C08G73/10; C08J5/18; C08L79/08
Domestic Patent References:
| JP6522130B2 |
Foreign References:
| WO2015080158A1 |
Attorney, Agent or Firm:
Patent Business Corporation St. Crest International Patent Office