Polyimide precursor composition and polyimide film comprising same

The present invention provides a polyimide film comprising a block copolymer, the block copolymer comprising: a first block obtained by imidizing a polyamic acid derived from a polymer of a dianhydride component comprising biphenyltetracarboxylic dianhydride (BPDA) and a diamine component comprising...

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Bibliographische Detailangaben
Hauptverfasser:	BACK SUNG YUL, JUNG YOUNG JIN, LEE KIL NAM, CHO MIN-SANG, WON DONG YOUNG, CHAE SOO-KYUNG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides a polyimide film comprising a block copolymer, the block copolymer comprising: a first block obtained by imidizing a polyamic acid derived from a polymer of a dianhydride component comprising biphenyltetracarboxylic dianhydride (BPDA) and a diamine component comprising a p-phenylenediamine (PPD) component, and a second block obtained by imidizing a polyamic acid derived from a polymer of a dianhydride component comprising biphenyltetracarboxylic dianhydride (BPDA) and a diamine component comprising p-phenylenediamine (PPD); a second block obtained by imidizing a polyamic acid derived from a polymer of a dianhydride component containing biphenyltetracarboxylic acid dianhydride and a diamine component containing m-tolidine, and a second block obtained by imidizing a polyamic acid derived from a polymer of a dianhydride component containing biphenyltetracarboxylic acid dianhydride and a diamine component containing m-tolidine; and a third block obtained by imidizing a polyamic acid