EP 0707601 A1 19960424 - METHOD OF PREPARING CARBOXYMETHYLATED POLYGALACTOMANNANS
Title (en)
METHOD OF PREPARING CARBOXYMETHYLATED POLYGALACTOMANNANS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CARBOXYMETHYLIERTEN POLYGALAKTOMANNANEN
Title (fr)
PROCEDE DE FABRICATION DE POLYGALACTOMANNANES CARBOXYMETHYLES
Publication
Application
Priority
- DE 4319915 A 19930616
- EP 9401845 W 19940607
Abstract (en)
[origin: WO9429353A1] The invention concerns a method for the continuous preparation of carboxymethylated polygalactomannans, the aim of the invention being to increase the yield of high-viscosity products. This is achieved by continuously feeding polygalactomannans, an alkali-metal hydroxide and chloroacetic acid and/or alkali-metal salts of chloroacetic acid in the presence of water to an extruder, mixing these components thorougly and removing the product produced by the extruder for drying or other treatment.
IPC 1-7
IPC 8 full level
A23G 9/52 (2006.01); A23L 1/0526 (2006.01); A23L 29/238 (2016.01); C08B 37/00 (2006.01); C08B 37/14 (2006.01); D06M 15/03 (2006.01); D21H 17/21 (2006.01); D21H 17/24 (2006.01)
CPC (source: EP)
A23G 9/52 (2013.01); A23L 29/238 (2016.07); C08B 37/0096 (2013.01); D06M 7/00 (2013.01); D06M 15/03 (2013.01); D21H 17/24 (2013.01); A23G 2200/06 (2013.01); D06M 2200/40 (2013.01)
Citation (search report)
See references of WO 9429353A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
DE 4319915 A1 19941222; EP 0707601 A1 19960424; WO 9429353 A1 19941222
DOCDB simple family (application)
DE 4319915 A 19930616; EP 9401845 W 19940607; EP 94919614 A 19940607