Invention Grant
US08796411B2 Polyimide precursor composition, polyimide film, and transparent flexible film
有权
聚酰亚胺前体组合物,聚酰亚胺膜和透明柔性膜
- Patent Title: Polyimide precursor composition, polyimide film, and transparent flexible film
- Patent Title (中): 聚酰亚胺前体组合物,聚酰亚胺膜和透明柔性膜
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Application No.: US12918312Application Date: 2009-01-26
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Publication No.: US08796411B2Publication Date: 2014-08-05
- Inventor: Yuichi Kaneya , Yumiko Arakawa , Keiko Suzuki
- Applicant: Yuichi Kaneya , Yumiko Arakawa , Keiko Suzuki
- Applicant Address: JP Tokyo
- Assignee: Hitachi Chemical DuPont Microsystems, Ltd.
- Current Assignee: Hitachi Chemical DuPont Microsystems, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Griffin & Szipl, P.C.
- Priority: JP2008-043350 20080225
- International Application: PCT/JP2009/051170 WO 20090126
- International Announcement: WO2009/107429 WO 20090903
- Main IPC: C08G73/00
- IPC: C08G73/00

Abstract:
The polyimide precursor composition of the present invention is characterized in comprising a polyimide precursor having a structure formed by reacting a diamine component (A) containing a fluorine-containing aromatic diamine (a1) represented by the following chemical formula (I) (in the formula (I), R1 and R2 are each independently selected from —H, —(CF2)n—CF3, and —O(CF2)n—CF3 (n is an integer of 0 or more and 7 or less), and at least one of R1 and R2 is a fluorine-containing group) and trans-1,4-cyclohexyldiamine (a2) with an acid dianhydride component (B) containing an aliphatic tetracarboxylic dianhydride (b1) and an aromatic tetracarboxylic dianhydride (b2). Use of the composition of the present invention provides a polyimide film and a transparent flexible film having high transparency, low thermal expansion properties, low birefringent properties, and high heat resistance.
Public/Granted literature
- US20110059305A1 POLYIMIDE PRECURSOR COMPOSITION, POLYIMIDE FILM, AND TRANSPARENT FLEXIBLE FILM Public/Granted day:2011-03-10
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