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.
Claims8
A method for producing filaments of polyacrylonitrile, comprising preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments, which are introduced in a coagulating medium, before the extrusion step in the extruder plate, the material of the polymer solution to be extruded is subjected to a vibration which is applied by a floating plate connected to a vibrating system, said material of the polymer solution passing into the pre-extrusion vibrating area via radial conduits that accelerate the material.
Dependencies are inferred from the claim text.