Patent · US Active

Process for the preparation of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process

US12247321B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

Technikum Laubholz GmbH · DE

Inventors

Falko Abels · Ludwigshafen, DE
Tomasz Cwik · Mannheim, DE
Ronald Beyer · Winnenden, DE
Frank Hermanutz · Leonberg, DE

Key dates

Filing date	Jan 18, 2023
Grant date	Mar 11, 2025
Priority date	—
Expiry date	Jan 18, 2043

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01F2/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.