Process for preparing retention and dewatering agents on the basis of polyaminoethers

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von verzweigten und/oder vernetzten Polyaminoethern, wobei Polyaminoether, hergestellt aus Glykoldichlorhydrinen, bzw. Polyglykoldichlorhydrinen und Diaminen, die noch freie Chlorhydringruppen enthalten, in einer im wesentlichen wäßrig...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	BAYER, ROLAND, KOCH, WOLFGANG, SZABLIKOWSKI, KLAUS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON DYES GENERAL PROCESSES OF COMPOUNDING IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS SEPARATION TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von verzweigten und/oder vernetzten Polyaminoethern, wobei Polyaminoether, hergestellt aus Glykoldichlorhydrinen, bzw. Polyglykoldichlorhydrinen und Diaminen, die noch freie Chlorhydringruppen enthalten, in einer im wesentlichen wäßrigen Lösung unter alkalischen Bedingungen in der Wärme vernetzt werden. A method for the preparation of branched and/or cross-linked polyaminoethers - comprises heating an aqueous solution of polyaminoether under alkaline conditions. The polyaminoethers contain free chlorohydrin groups, having been obtained from (poly)glycol dichlorohydrins and diamines. Preferably polyethylene glycol and polypropylene glycol are reacted with copolymers, graft polymers or block polymers containing alpha , beta -diaminoalkanes (preferably ethylene diamine, diethylene triamine, triethylene tetraamine, tetraethylene pentamine, higher ethylene polyamines, mono-, di- or tripropylene diamine, higher propylene polyamines, piperazines or (poly)vinylamine) =, (poly)allylamine or (poly)ethylene imine, or mixtures of these. During the preparation of the polyaminoether the chlorohydrin to amino group ratio is 1:0.7-0.999. Crosslinking is carried out in a solvent which may also contain an alcohol, ketone, ether, ester or amide as well as water. Polyaminoether solution concentration is 5-50 %.