Abstract: A method for producing a release agent (2), wherein the method comprises at least the following steps: a) providing a reactive mixture, comprising a carboxylic-acid-containing monomer component, which comprises, preferably and/or consists of itaconic acid and/or itaconic acid derivatives; b) polymerizing the reactive mixture to form a polymer solution, wherein the polymer solution comprises a polymer which is at least partially dissolved in a solvent and which contains the carboxylic-acid-containing monomer component, c) obtaining a release agent (2) comprising the polymer solution, wherein CO2 can be liberated from the release agent, preferably the polymer of the release agent, by decarboxylation; as well as a release agent (2) and a use of the release agent (2).

Abstract: The invention relates to a novel synthesis process in order to produce meltable PAN copolymers with increased thermal stability. The PAN copolymers produced using the method according to the invention surprisingly exhibit improved thermal and mechanical properties compared to PAN copolymers produced using methods known from the prior art. The invention additionally relates to corresponding PAN copolymers and to molded bodies produced therefrom or to a method for producing such molded bodies, in particular melt-spun mono- or mufti-filaments.

Abstract: 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.

Abstract: The invention relates to a novel synthesis process in order to produce meltable PAN copolymers with increased thermal stability. The PAN copolymers produced using the method according to the invention surprisingly exhibit improved thermal and mechanical properties compared to PAN copolymers produced using methods known from the prior art. The invention additionally relates to corresponding PAN copolymers and to molded bodies produced therefrom or to a method for producing such molded bodies, in particular melt-spun mono- or mufti-filaments.

Abstract: 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.