DOPE, AND METHOD FOR PRODUCTION OF FIBER USING THE DOPE

WIPO Patent Application WO/2008/133351

A1

Disclosed are: a dope which is useful for the production of a polyoxazole having excellent heat resistance and mechanical properties; and a method for producing a fiber by using the dope. Specifically disclosed are: a dope which comprises an aqueous solution containing a polyamide having a repeating unit represented by the formula (I) and having an intrinsic viscosity of 1 or greater and a quaternary ammonium hydroxide represented by the formula (M), which has a concentration of the polyamide of more than 10% by weight and not more than 25% by weight, and which exhibits optical anisotropy at 50˚C; and a method for producing a fiber by using the dope. (I) wherein Ar1 represents at least one substituent selected from group consisting of the substituents shown below. and (M) wherein R1, R2, R3 and R4 independently represent a hydrogen or a hydrocarbon group having 1 to 20 carbon atoms.

WILBERS DENNIS (JP)
CHOKAI MASAYUKI (JP)
KUWAHARA HIROAKI (JP)
DE WEIJER ANTON PETER (JP)

PCT/JP2008/058324

November 06, 2008

April 24, 2008

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TEIJIN LTD (JP)
TEIJIN TECHNO PRODUCTS LTD (JP)
WILBERS DENNIS (JP)
CHOKAI MASAYUKI (JP)
KUWAHARA HIROAKI (JP)
DE WEIJER ANTON PETER (JP)

C08G73/22; C08K5/19; C08L77/10; C08L79/04; D01F6/74

WO2006126696A1	2006-11-30
WO2007052825A1	2007-05-10

JP2007077524A	2007-03-29
JP2004131533A	2004-04-30
JP2000131844A	2000-05-12

OHSHIMA, Masataka (BN Gyoen Building17-11, Shinjuku 1-chom, Shinjuku-ku TOKYO 22, JP)

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