Polyimide film and process for producing the same

Details Polyimide film and process for producing the same Polyimide film and process for producing the same

2007-07-24

2007-07-24

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

C428S473500, C524S287000, C524S218000, C528S332000

Reexamination Certificate

active

10467210

ABSTRACT:
The polyimide film of the present invention is produced in the following manner: polyamic acid made of a combination of a specific acid anhydride constituent and a specific diamine constituent are heated under a low-pressure circumstance for heat imidation, and the obtained imide is dissolved again in a solvent to be polyimide solution, then the polyimide solution is formed to be a film. In this manner, it is possible to provide a polyimide film essentially transparent and colorless, and has sufficient toughness to prevent occurrences of a crack or a break when the film is folded and creased by hand.

REFERENCES:
patent: 4603061 (1986-07-01), St. Clair et al.
patent: 4908430 (1990-03-01), Zecher et al.
patent: 5089549 (1992-02-01), Kato
patent: 5411765 (1995-05-01), Kanakarajan et al.
patent: 6586081 (2003-07-01), Nishinaka et al.
patent: 1 004 925 (2000-05-01), None
patent: 61-176629 (1986-08-01), None
patent: 63-297428 (1988-12-01), None
patent: 06-200024 (1994-07-01), None
patent: 07-033875 (1995-02-01), None
patent: 09-012719 (1997-01-01), None
patent: 09-048851 (1997-02-01), None
patent: 2000-273172 (2000-10-01), None
patent: 2001-064387 (2001-03-01), None
patent: 00/12604 (2000-03-01), None
T. Matsuura et al. “Development and Application of Fluorinated Polyimide (FLUPI)”, Function and Materials, vol. 12, No. 9, pp. 30-37, Sep. 1992.
Japanese language office action and its English translation for corresponding Japanese Patent Application No. 2002-566259 lists the references above.

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