Invention Grant
- Patent Title: Process for the preparation of a fiber, a fiber and a yarn made from such a fiber
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Application No.: US14899832Application Date: 2014-06-20
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Publication No.: US10351973B2Publication Date: 2019-07-16
- Inventor: Jeffrey John Kolstad , Gerardus Johannes Maria Gruter
- Applicant: FURANIX TECHNOLOGIES B.V.
- Applicant Address: NL Amsterdam
- Assignee: FURANIX TECHNOLOGIES B.V.
- Current Assignee: FURANIX TECHNOLOGIES B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: NL2011016 20130620
- International Application: PCT/NL2014/050407 WO 20140620
- International Announcement: WO2014/204313 WO 20141224
- Main IPC: D01D5/08
- IPC: D01D5/08 ; D01D5/088 ; D01F6/62 ; D06P3/52 ; D01F6/84 ; D01F6/94

Abstract:
A fiber comprising polyethylene-2,5-furan-dicarboxylate, is prepared by melt spinning in a process wherein a molten composition comprising polyethylene-2,5-furan-dicarboxylate having an intrinsic viscosity of at least 0.55 dl/g, determined in dichloroacetic acid at 25° C., is passed through one or more spinning openings to yield molten threads; wherein the molten threads are cooled to below the melting temperature of the composition to yield spun fibers; and wherein the spun fibers are drawn to a linear density in the range of 0.05 to 2.0 tex per fiber. The invention also proves a fiber comprising polyethylene-2,5-furan-dicarboxylate having a linear density of 0.05 to 2.0 tex, wherein the polyethylene-2,5-furan-dicarboxylate has an intrinsic viscosity of at least 0.45 dl/g, determined in dichloroacetic acid at 25° C.
Public/Granted literature
- US20160138193A1 PROCESS FOR THE PREPARATION OF A FIBER, A FIBER AND A YARN MADE FROM SUCH A FIBER Public/Granted day:2016-05-19
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