Melt-spun elastoester multifilament yarns

Details Melt-spun elastoester multifilament yarns Melt-spun elastoester multifilament yarns

D - Textiles, Paper

01

F

D01F 6/86 (2006.01)

Patent

CA 2668872

This invention relates to a method of melt-spinning a polyether ester thermoplastic elastomer under commercially viable conditions to produce an elastoester multifilament yarn, wherein the polyether ester thermoplastic elastomer is a polytrimethylene ether ester comprising a polytrimethylene ether dicarboxylate ester soft segment and hard segment selected from a trimethylene dicarboxylate ester and/or a tetramethylene dicarboxylate ester hard segment.

L'invention concerne un procédé destiné à filer par fusion un élastomère thermoplastique d'ester de polyéther sous des conditions commercialement viables pour produire un brin à plusieurs filaments d'élastoester, dans lequel l'élastomère thermoplastique d'ester de polyéther est un ester de polytriméthylèneéther comprenant un segment mou d'ester de dicarboxylate de polytriméthylèneéther et un segment dur sélectionné parmi un ester de triméthylène dicarboxylate et/ou un segment dur d'ester de tétraméthylène dicarboxylate.

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