Toray Industries, Inc.

Toray Industires, Inc.

Koichi Yamaoka

Katsumi Yamasaki

Tetsunori Higuchi

Tomihiro Ishida

Daisuke Kawakami

A flame-resistant polymer excels in moldability capable of providing a flame-resistant molded item of novel configuration; a relevant flame-resistant polymer solution; a process for easily producing them; a carbon molding from the flame-resistant polymer; and a process for easily producing the same. A flame-resistant polymer is modified with an amine compound. Further, a flame-resistant polymer solution has the polymer dissolved in a polar organic solvent. A flame-resistant molding whose part or entirety is constituted of the flame-resistant polymer modified with an amine compound. A carbon molding was part or entirety constituted of a carbon component resulting from carbonization of the flame-resistant polymer modified with an amine compound. From the solution containing the flame-resistant polymer, moldings of various configurations can be obtained through further work.

Solution containing flame-resistant polymer and carbon molding

In a flame resistant fiber assembly obtainable by fiber forming a flame resistant polymer, a flame resistant fiber of a higher performance is obtained by improving fiber forming ability. A carbon fiber of a high performance is obtained by carbonizing the flame resistant fiber. At obtaining a flame resistant fiber by subjecting a solution containing a flame resistant polymer modified by an amine-based compound to a wet spinning or a semi-dry spinning in a coagulation bath in such a way that a degree of swelling of a coagulated yarn at the outlet of the coagulation bath is 100 to 1000 wt % and then, in a bath, subjecting to a drawing and/or water washing and to a drying under tension, the flame resistant fiber is produced by controlling temperature of the drawing bath/water washing bath, drying temperature or tension in such a way that the obtained fiber would not crystallize. A carbon fiber is produced by carbonizing the flame resistant fiber.

Flame resistant fiber, carbon fiber and production method thereof

A flame-resistant polymer excelling in moldability capable of providing a flame-resistant molded item of novel configuration; a relevant flame-resistant polymer solution; a process for easily producing them; a carbon molding from the flame-resistant polymer; and a process for easily producing the same. There is provided a flame-resistant polymer modified with an amine compound. Further, there is provided a flame-resistant polymer solution in which the polymer is dissolved in a polar organic solvent. Still further, there is provided a flame-resistant molding whose part or entirety is constituted of the flame-resistant polymer modified with an amine compound. Moreover, there is provided a carbon molding whose part or entirety is constituted of a carbon component resulting from carbonization of the flame-resistant polymer modified with an amine compound. Still further, there is provided a process for producing them. From the solution containing the flame-resistant polymer, moldings of various configurations can be obtained through further work.

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Matsuyama, Japan

Koichi Yamaoka