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Patent Searching and Data


Title:
RECYCLING OF LYOCELL CELLULOSE FOR LYOCELL PROCESSES
Document Type and Number:
WIPO Patent Application WO/2019/138097
Kind Code:
A1
Abstract:
A method for producing a regenerated cellulose molded body (102), the method having the steps of: supplying (78) a starting material (110) which contains cellulose and is produced by means of a Lyocell process, said starting material being produced by the steps of dissolving (52) a cellulose source (48) in a solvent in order to produce a spinning material, extruding (54) and subsequently precipitating (56) the spinning material in a spinning bath; dissolving (68) the cellulose-containing starting material (110) in a solvent (116) in order to produce a spinning material; and extruding (70) and subsequently precipitating (72) the spinning material in a spinning bath (191), whereby the molded body (102) is obtained.

Inventors:
KLAUS-NIETROST CHRISTOPH (AT)
HERCHL RICHARD (AT)
WEILACH CHRISTIAN (AT)
SPERGER CHRISTIAN (AT)
Application Number:
EP2019/050753
Publication Date:
July 18, 2019
Filing Date:
January 14, 2019
Export Citation:
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Assignee:
CHEMIEFASER LENZING AG (AT)
International Classes:
D01F2/00; C08J11/06; D01F13/02
Domestic Patent References:
WO1996007778A11996-03-14
WO2016123643A12016-08-11
WO2017019802A12017-02-02
Foreign References:
Other References:
None
Attorney, Agent or Firm:
DILG, Andreas (DE)
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