Partially oriented poly(trimethylene terephthalate) yarn

Details Partially oriented poly(trimethylene terephthalate) yarn Partially oriented poly(trimethylene terephthalate) yarn

D - Textiles, Paper

01

F

D01F 6/62 (2006.01) D02G 1/02 (2006.01) D02G 1/08 (2006.01)

Patent

CA 2372434

A partially oriented yarn made from a polyester polymer, wherein said polymer comprises at least 85 mole % poly(trimethylene terephthalate) wherein at least 85 mole % of repeating units consist of trimethylene units, and wherein said polymer has an intrinsic viscosity of at least 0.70 dl/g and the partially oriented yarn has an elongation to break of at least 110%. In addition, processes for spinning a partially oriented yarn and for continuous draw- texturing a partially oriented feed yarn.

L'invention concerne un fil partiellement orienté constitué à partir du polymère polyester, ce polymère comprenant au moins 85 moles % de poly(triméthylène téréphthalate), au moins 85 moles % de ces unités qui se répètent représentant des unités triméthylène, et le polymère ayant une viscosité intrinsèque d'au moins 0.70 dl/g et étant doté d'une élongation à la rupture d'au moins 110 %. De plus, l'invention concerne un processus de filature d'un fil partiellement orienté ainsi qu'un processus d'étirement-texturation continu d'un fil d'alimentation partiellement orienté.

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