AROMATIC POLYIMIDE FILM, LAMINATE, AND SOLAR CELL

WIPO Patent Application WO/2011/062271

A1

Disclosed is a polyimide film obtained from an aromatic tetracarboxylic acid ingredient comprising 3,3',4,4'-biphenyltetracarboxylic dianhydride as the main component and an aromatic diamine ingredient comprising p-phenylenediamine as the main component, characterized in that the film, when examined for dimensional change in the course of heating from 25ºC to 500ºC, has a maximum value of dimensional change in the range of +0.6% to +0.9%, excluding +0.6%, of the dimension of the film as measured as 25ºC before the heating. The polyimide film is used as a substrate to produce a CIS solar cell having flexibility and a high conversion efficiency.

YAMAGUCHI, Hiroaki (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)
山口　裕章 (〒33 山口県宇部市大字小串１９７８番地の９６　宇部興産株式会社内 Yamaguchi, 〒7558633, JP)
MIYAMOTO, Takao (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)
宮本　貴男 (〒33 山口県宇部市大字小串１９７８番地の９６　宇部興産株式会社内 Yamaguchi, 〒7558633, JP)

JP2010/070723

May 26, 2011

November 19, 2010

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UBE INDUSTRIES, LTD. (1978-96, Oaza Kogushi Ube-sh, Yamaguchi 33, 〒7558633, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 〒7558633, JP)
YAMAGUCHI, Hiroaki (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)
山口　裕章 (〒33 山口県宇部市大字小串１９７８番地の９６　宇部興産株式会社内 Yamaguchi, 〒7558633, JP)
MIYAMOTO, Takao (1978-96, Oaza Kogushi, Ube-sh, Yamaguchi 33, 〒7558633, JP)

C08J5/18; B29C41/24; B29C41/46; B32B15/088; C08G73/10; H01L31/04; C23C14/24; C23C14/34

ITO, Katsuhiro et al. (7F TS Bldg, 3-10-9 Nihombashi-Kayabacho, Chuo-k, Tokyo 25, 〒1030025, JP)

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