Polymer fiber, its use and process for its manufacture

Details Polymer fiber, its use and process for its manufacture Polymer fiber, its use and process for its manufacture

D - Textiles, Paper

01

F

D01F 6/06 (2006.01) C04B 16/06 (2006.01) D06M 10/00 (2006.01)

Patent

CA 2754878

Polymer fiber obtainable by melt-spinning of a polymer and subsequent treatment of the fiber with ionizing radia-tion, wherein the polymer is a polypropylene homopolymer, a polypropylene copolymer or a mixture thereof, the polymer fiber has a lenght in the range of 0.1 to 40 mm, a diameter in the range of 5 to 170 pm and an MFI of more than 500g/10 min. Use of the treated polymer fiber to improve fire resistance of concrete, mortar, plaster, cement or refractory material.

Fibre de polymère pouvant être obtenue par le filage à l'état fondu d'un polymère et par le traitement ultérieur de cette fibre par rayonnement ionisant, le polymère étant un homopolymère polyprophylénique, un copolymère polyprophylénique ou un mélange des deux. Cette fibre de polymère a une longueur comprise entre 0,1 et 40 mm, un diamètre compris entre 5 et 170 pm et un indice de fusion (MFI) de plus de 500g/10 min. La fibre de polymère traitée est utilisée pour améliorer la résistance au feu du béton, du mortier, du plâtre, du ciment ou des matières réfractaires.

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