POLYIMIDE SEAMLESS BELT AND PROCESS FOR PRODUCTION THEREOF, AND POLYIMIDE PRECURSOR SOLUTION COMPOSITION

A seamless belt formed of a polyimide including a repeating unit represented by the formula (1): in which 25 mol % to 95 mol % of A is a tetravalent unit represented by the formula (2): 75 mol % to 5 mol % of A is a tetravalent unit represented by the formula (3): 15 mol % to 95 mol % of B is a diva...

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Hauptverfasser: NAKAYAMA TAKESHIGE, HIROSHIGE KENSUKE, KAWABATA AKIRA, NAKAYAMA TOMONORI, TAKASAKI SUSUMU
Format: Patent
Sprache:eng
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Zusammenfassung:A seamless belt formed of a polyimide including a repeating unit represented by the formula (1): in which 25 mol % to 95 mol % of A is a tetravalent unit represented by the formula (2): 75 mol % to 5 mol % of A is a tetravalent unit represented by the formula (3): 15 mol % to 95 mol % of B is a divalent unit represented by the formula (4): and 85 mol % to 5 mol % of B is a divalent unit represented by the formula (5):