The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2019
Filed:
Apr. 04, 2014
Aalto University Foundation, Aalto, FI;
Helsingin Yliopisto, Helsinki, FI;
Anne Michud, Helsinki, FI;
Alistair W. T. King, Helsinki, FI;
Arno Parviainen, Helsinki, FI;
Herbert Sixta, Helsinki, FI;
Lauri Hauru, Helsinki, FI;
Michael Hummel, Helsinki, FI;
Iikka Kilpeläinen, Helsinki, FI;
Aalto University Foundation sr, Aalto, FI;
Helsingin Yliopisto, Helsinki, FI;
Abstract
A method of manufacturing a cellulose-based shaped article. The method comprises subjecting a solution of lignocellulosic material, dissolved in a distillable ionic liquid, to a spinning method, wherein the ionic liquid is a diazabicyclononene (DBN)-based ionic liquid. DBN-based ionic liquids have good dissolution power, high thermal and chemical stability, lack runaway reactions and exhibit low energy consumption, due to low spinning temperatures. The shaped cellulose articles can be used as textile fibers, high-end non-woven fibers, technical fibers, films for packaging, and barriers films in batteries, as membranes and as carbon-fiber precursors.