MELT SPINNABLE COPOLYMERS FROM POLYACRYLONITRILE, METHOD FOR PRODUCING FIBERS OR FIBER PRECURSORS BY MEANS OF MELT SPINNING, AND FIBERS PRODUCED ACCORDINGLY

• Main Authors: KNOOP, Mats Timothy, LIESKE, Antje
• Format: Patent
• Language: English; French; German
• Published: 30.01.2019
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a method for the production of thermally stabilised melt-spun fibres in which polyacrilonitrile (PAN) fibres or PAN fibre precursors produced by melt-spinning are treated in an aqueous alkaline solution, comprising in addition a solvent for PAN. Likewise, the invention relates to fibres which are producible according to this method.