POLYIMIDE FILM AND PROCESS FOR PRODUCING POLYIMIDE FILM

Title:

POLYIMIDE FILM AND PROCESS FOR PRODUCING POLYIMIDE FILM

Document Type and Number:

WIPO Patent Application WO/2011/021639

Kind Code:

A1

Abstract:

A polyimide film obtained by reacting a tetracarboxylic acid ingredient comprising 3,3',4,4'-biphenyltetracarboxylic dianhydride as the main component with a diamine ingredient comprising p-phenylenediamine as the main component is heat-treated at a temperature in the range of 460-550ºC and further subjected to a surface treatment in which water or an alkaline aqueous solution is sprayed over a surface of the film. Thus, the polyimide film can have improved bondability while retaining the excellent properties inherent in polyimide films.

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Inventors:

HISANO NOBUHARU (JP)
MURAKAMI TAIZOU (JP)
KOHDA MASAFUMI (JP)
YAMAGUCHI HIROAKI (JP)

Application Number:

PCT/JP2010/063925

Publication Date:

February 24, 2011

Filing Date:

August 18, 2010

Export Citation:

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Assignee:

UBE INDUSTRIES (JP)
HISANO NOBUHARU (JP)
MURAKAMI TAIZOU (JP)
KOHDA MASAFUMI (JP)
YAMAGUCHI HIROAKI (JP)

International Classes:

C08J7/02; B29C41/24; B32B27/34; C08G73/10; H05K1/03; B29K79/00; B29L7/00

Foreign References:

JPH11930A	1999-01-06
JP2000239423A	2000-09-05
JP2008031470A	2008-02-14
JPH065997A	1994-01-14
JPH07330930A	1995-12-19

Attorney, Agent or Firm:

ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)

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