Method for producing filaments of polyacrylonitrile and extrusion head for carrying out said method
OwnerManuel Torres Martinezinventor
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Abstract
A method for producing filaments of polyacrylonitrile and an extrusion head for carrying out said method are provided, wherein the method comprises preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments, a central chamber being defined between the extruder plate and a floating plate connected to a vibrating system, said chamber being surrounded by a peripheral chamber into which the polymer solution is introduced under pressure. The polymer solution then passes through to the central chamber via small radial conduits that accelerate the material, and is subjected to vibration in the central chamber before passing through the extruder plate.
Claims5
An extrusion head for producing filaments of polyacrylonitrile, comprising an inlet for introducing a polyacrylonitrile polymer solution under pressure and an extruder plate provided with calibrated holes for forming filaments of the polymer solution by making said solution pass through said extruder plate, wherein a central chamber is defined between the extruder plate and a floating plate, there being arranged around said central chamber a peripheral chamber into which the inlet opens, said peripheral chamber being communicated with the central chamber via small radial conduits, whereas a vibrating system is arranged connected to the floating plate.
Dependencies are inferred from the claim text.