US 12,227,886 B2
Lyocell fiber with viscose like properties
Martina Opietnik, 4861 Schörfling am Attersee (AT); Verena Silbermann, 4851 Gampern (AT); and Andrea Borgards, 4853 Steinbach am Attersee (AT)
Assigned to Lenzing Aktiengesellschaft, Lenzing (AT)
Appl. No. 16/978,263
Filed by LENZING AKTIENGESELLSCHAFT, 4860 Lenzing (AT)
PCT Filed Mar. 6, 2019, PCT No. PCT/EP2019/055528
§ 371(c)(1), (2) Date Sep. 4, 2020,
PCT Pub. No. WO2019/170723, PCT Pub. Date Sep. 12, 2019.
Claims priority of application No. 18160142 (EP), filed on Mar. 6, 2018.
Prior Publication US 2021/0002802 A1, Jan. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. D04H 3/013 (2012.01); D01D 5/06 (2006.01); D01F 1/02 (2006.01); D01F 2/08 (2006.01)
CPC D04H 3/013 (2013.01) [D01D 5/06 (2013.01); D01F 1/02 (2013.01); D01F 2/08 (2013.01); D10B 2201/24 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A lyocell fiber with a water retention value (WRV) of at least 70% and a crystallinity of 40% or less, wherein hemicellulose of the lyocell fiber has a ratio of xylan to mannan hemicelluloses of from 125:1 to 1:3.