METHOD FOR REDUCING THE SURFACE TENSION OF AQUEOUS SOLUTIONS

In the novel method, the aqueous solutions of organic or inorganic salts are admixed, in order to reduce surface tension, with a reaction product from polyglycerol and fatty acid, which product has been obtained by (a) first condensing glycerol under normal pressure up to a hydroxyl value of from 13...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HERBERT STUHLER, GERHARD ULTSCH-UNRATH
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES 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 POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In the novel method, the aqueous solutions of organic or inorganic salts are admixed, in order to reduce surface tension, with a reaction product from polyglycerol and fatty acid, which product has been obtained by (a) first condensing glycerol under normal pressure up to a hydroxyl value of from 1350 to 1100, (b) distilling the condensation product obtained in step (a), in order to remove low-boiling compounds, at a vacuum of from 50 to 2000 Pa until the bottom product has a hydroxyl value of from 1050 to 900, (c) further condensing at atmospheric pressure, the bottom product obtained in step (b) up to a hydroxyl value of from 890 to 800 and (d) esterifying the polyglycerol mixture obtained in step (c) up to a hydroxyl value of from 800 to 750 and an acid value of at most 0.7.