Improved processing of polyphthalamide monofilament

Details Improved processing of polyphthalamide monofilament Improved processing of polyphthalamide monofilament

D - Textiles, Paper

01

F

D01F 6/90 (2006.01) C08F 8/30 (2006.01) D01F 6/48 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2219380

Monofilaments useful in papermaking fabrics which contain blended polyphthalamide and fluoropolymer and a process for making these monofilaments. These monofilaments have improved dry heat stability, knot strength, loop strength and abrasion resistance. The process reduces polymer shear in the extruder and eliminates polymer build up on the spinneret face.

Monofilaments utiles dans la fabrication des toiles de machine à papier contenant un mélange de polyphtalamide et de polymère fluoré et procédé de fabrication de ces monofilaments. Ces monofilaments se caractérisent par une stabilité à la chaleur sèche, une résistance au noeud, une résistance à la boucle et une résistance à l'abrasion améliorées. Le procédé réduit le cisaillement du polymère dans l'extrudeuse et élimine l'accumulation du polymère sur la face de la filière.

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