Title:
POLYIMIDE THIN FILM AND PREPARATION METHOD AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/200229
Kind Code:
A1
Abstract:
Provided are a polyimide thin film and preparation method and application thereof. The polyimide film is a low thermal expansion, colorless transparent thin film, obtained using a mixture of rigid aromatic diamine and fluorine-containing aromatic diamine, rigid aromatic tetracarboxylic dianhydride and fluorine-containing aromatic tetracarboxylic dianhydride mixture as raw materials, mixing to obtain a resin solution, and then imidizing and post-treating. The invention not only has excellent transparency, but also has the advantages of low thermal expansion, high modulus, high glass transition temperature, and so on, and can be well applied to flexible optoelectronic display substrates, flexible printed circuit boards, or electronic packaging substrates.
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Inventors:
YANG SHIYONG (CN)
HE JIANJUN (CN)
YANG HAIXIA (CN)
WANG ZHIYUAN (CN)
HE JIANJUN (CN)
YANG HAIXIA (CN)
WANG ZHIYUAN (CN)
Application Number:
PCT/CN2020/082711
Publication Date:
October 08, 2020
Filing Date:
April 01, 2020
Export Citation:
Assignee:
INST CHEMISTRY CAS (CN)
International Classes:
C08G73/10; C08J5/18; G09F9/30; H01L23/14; H05K1/03
Foreign References:
| CN1306025A | 2001-08-01 | |||
| CN1306025A | 2001-08-01 | |||
| CN1970603A | 2007-05-30 | |||
| CN109134858A | 2019-01-04 | |||
| CN101796105A | 2010-08-04 | |||
| CN104211963A | 2014-12-17 | |||
| US20100108943A1 | 2010-05-06 | |||
| US20120135251A1 | 2012-05-31 | |||
| CN110092908A | 2019-08-06 |
Attorney, Agent or Firm:
BEIJING YUANZHONG INTELLECTUAL PROPERTY AGENT LTD. (CN)
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