EP 4045000 A1 20220824 - SOLUTION OF CELLULOSE IN A QUATERNARY AMMONIUM COMPOUND AND A CO-SOLVENT
Title (en)
SOLUTION OF CELLULOSE IN A QUATERNARY AMMONIUM COMPOUND AND A CO-SOLVENT
Title (de)
LÖSUNG VON CELLULOSE IN EINER QUATERNÄREN AMMONIUMVERBINDUNG UND EINEM CO-LÖSUNGSMITTEL
Title (fr)
SOLUTION DE CELLULOSE DANS UN COMPOSÉ D'AMMONIUM QUATERNAIRE ET CO-SOLVANT
Publication
Application
Priority
- EP 19203057 A 20191014
- EP 2020078043 W 20201007
Abstract (en)
[origin: WO2021073961A1] A polysaccharide solution comprising a) less than 15 % by weight of cellulose based on the weight of the solution b) a quaternary ammonium compound of formula I wherein R1 to R4 independently from each other represent organic groups with 1 to 20 carbon atoms and X- represents an anion with a carboxylate group and optionally X represents chloride as anion, and c) at least 50 % by weight of acetonitrile based on the weight of the solution, characterized in that the ratio of the amount of a) cellulose to b) the quaternary ammonium compound is 1:10 to 1:3, preferably 1:7 to 1:3, more preferably 1:5 to 1:3, most preferably 1:3.5 to 1: 3.
IPC 8 full level
A61K 8/41 (2006.01); A61K 8/73 (2006.01); A61Q 19/00 (2006.01); C08B 1/00 (2006.01); C08L 1/02 (2006.01)
CPC (source: EP)
C08B 1/003 (2013.01); C08L 1/02 (2013.01)
Citation (search report)
See references of WO 2021073961A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2020078043 W 20201007; EP 20789553 A 20201007