ZUBEREITUNGEN AUS NICHT-IONISCHEN UND IONISCHEN HYDROKOLLOIDEN UND DEREN VERWENDUNG ALS HILFSMITTEL FÜR DEN TUNNELBAU

• Main Authors: KIESEWETTER, RENE, PANNEK, JOERN-BERND, SZABLIKOWSKI, KLAUS, LANGE, WERNER
• Format: Patent
• Language: German
• Published: 15.12.2001
• Edition: 7
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SHAFTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TUNNELS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Prepn. comprises a non-ionic hydrocolloid, esp. polysaccharide ether, pref. cellulose ether, and at least an ionic hydrocolloid, esp. polysaccharide ether, pref. cellulose ether, and at least one surface active material. Also claimed is a prepn. comprising the above materials and an unrefined natural polysaccharide. Pref. the non-ionic hydrocolloid is a polysaccharide ether, pref. alkyl cellulose, alkyl hydroxyalkyl cellulose, hydroxyl alkyl cellulose or (hydroxy) alkylated ether starch. The ionic hydrocolloid is a carboxyalkyl or carboxylalkylhydroxyalkyl cellulose ether or carboxy(alkylhydroxy)alkylated ether starch. The surface active component is an anionic, cationic non-ionic or ampho-tenside. The unrefined natural polysaccharide is made of xanthan, starch, guar, natural rubber, ground locust bean, traganth, tamarind, alginate, protein, esp. cellulose material such as pine wood-sulphate, surface and cellulosic wood material.