Title:
変性ポリイミドの製造方法及び変性ポリイミド
Document Type and Number:
Japanese Patent JP5755401
Kind Code:
B2
Abstract:
The present invention discloses a method of producing a modified polyimide comprising a polycarbonate, which modified polyimide has excellent electric properties and adhesion as well as excellent heat resistance, flexibility, bending property, low warping, chemical resistance and storage stability; and the modified polyimide. Also disclosed are a composition comprising the modified polyimide and used thereof. According to the method in which an isocyanate-terminated oligomer comprising a polycarbonate component having excellent flexibility is allowed to react with a tetracarboxylic dianhydride to synthesize a tetracarboxylic dianhydride oligomer comprising the polycarbonate component and the thus obtained oligomer is then further allowed to react with an aromatic diamine and aromatic tetracarboxylic dianhydride to produce a polyimide block copolymer, by selecting the aromatic diamine from a wide range of selectable aromatic diamines, an excellent modified polyimide satisfying all of the above-described various characteristics can be produced.
Inventors:
Toshiyuki Goto
Win mothau
Sakae Hana
Win mothau
Sakae Hana
Application Number:
JP2009110914A
Publication Date:
July 29, 2015
Filing Date:
April 30, 2009
Export Citation:
Assignee:
PI Technology Research Institute Co., Ltd.
International Classes:
C08G73/10; C08L79/08; H05K1/03; H05K3/28
Domestic Patent References:
| JP2003198105A | ||||
| JP2005036025A | ||||
| JP2008179751A | ||||
| JP2008101123A |
Foreign References:
| WO2010010831A1 |
Attorney, Agent or Firm:
Patent Service Corporation Tanigawa International Patent Office
Eijiro Tanikawa
Eijiro Tanikawa