Fibers made from copolymers of propylene/alpha-olefins

D - Textiles – Paper – 01 – F

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D01F 6/30 (2006.01) C08F 4/646 (2006.01) C08F 295/00 (2006.01) C08F 297/08 (2006.01)

Patent

CA 2601248

A fiber is obtainable from or comprises a propylene/.alpha.-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re >1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross- linked, if desired. Woven or non- woven fabrics can be made from such fibers.

L'invention concerne une fibre pouvant être obtenue à partir d'un interpolymère de propylène/a-oléfine caractérisée par une récupération de l'élasticité, Re, en pourcentage à 300% de contrainte, un cycle et une densité, d, en grammes/centimètre cube, la récupération de l'élasticité et la densité satisfaisant la relation suivante: Re >1481-1629(d). Cet interpolymère peut également être caractérisé par d'autres propriétés. Les fibres ainsi produites possèdent une récupération de l'élasticité relativement élevée et un coefficient de friction relativement bas. Lesdites fibres peuvent être réticulées, le cas, échéant. On peut produire des tissus tissés ou non tissés à partir de ces fibres.

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