Copolymer polyimide

A copolymer polyimide containing a structural unit A derived from a tetracarboxylic dianhydride represented by formula (1) and a structural unit B derived from a diamine represented by general formula (2) shown below, in which at least one of the structural unit A and the structural unit B includes...

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Bibliographische Detailangaben
Hauptverfasser:	KIHARA, SHUTA, YONEHAMA, SHINICHI, MURAYAMA, TOMOHISA, ISHII, KENTARO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	A copolymer polyimide containing a structural unit A derived from a tetracarboxylic dianhydride represented by formula (1) and a structural unit B derived from a diamine represented by general formula (2) shown below, in which at least one of the structural unit A and the structural unit B includes two or more types of structural unit, wherein the Hamaker constant (A131), represented by formula (3) and corresponding with the self-interaction of the copolymer polyimide, is less than 6.6510-21 J with respect to [gamma]-butyrolactone, and more than 5.8010-21 J with respect to methyl isobutyl ketone. (R1 and R2 represent organic groups excluding monocyclic aromatic groups and condensed polycyclic aromatic groups).