Method for the thermal stabilisation of fibres and said type of stabilised fibres
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsMathias HAHN, Antje LIESKE, Mats KNOOP
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Abstract
The invention relates to a method for the production of thermally stabilised melt spun fibres, in which polyacrylonitrile (PAN) fibres or PAN fibre precursors produced by melt spinning are treated in an aqueous alkaline solution which comprises in addition a solvent for PAN. Likewise, the invention relates to fibres which are producible according to this method.
Claims16
1-15. (canceled)
A method of thermally stabilising melt spun acrylic fibres in which an acrylic fibre produced by melt spinning or a fibre precursor, which involves pre-stabilising the acrylic fibre produced by melt spinning or the fibre precursor with a mixture comprising a solvent for polyacrylonitrile and an aqueous alkaline solution.
Dependencies are inferred from the claim text.