METHOD OF PRODUCING AQUEOUS COMPOSITION FORMING POLYMERIC GELS

The invention relates to a process for stabilizing an aqueous gel-forming system comprising one or more water-soluble acrylic monomer as gellifying agent, methylenebis-acrylamide co-monomer and/or one or more mono- or bivalent aldehyde as cross-linking agent, a redox catalyst system containing an al...

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Bibliographische Detailangaben
Hauptverfasser:	FERENTS CHANDA,HU, TAMASH SEKELI,HU, GABOR NAD,HU, DEZE TSERNI,HU
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ADHESIVES BLASTING CHEMISTRY COMPOSITIONS BASED THEREON DYES EARTH DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GALLERIES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LARGE UNDERGROUND CHAMBERS LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PIPES POLISHES SHAFTS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TUNNELS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a process for stabilizing an aqueous gel-forming system comprising one or more water-soluble acrylic monomer as gellifying agent, methylenebis-acrylamide co-monomer and/or one or more mono- or bivalent aldehyde as cross-linking agent, a redox catalyst system containing an alkali metal and/or ammonium persulfate as oxidizing component along with one or more amine compound as reducing component, furthermore optionally one or more water-soluble polymer for adjusting the viscosity of the solution and/or modifying the gel structure. According to the invention said gel-forming system is stabilized by saturating it with molecular oxygen. The invention relates further to a process for improving the strength and impermeability of particulate materials and/or solid articles. According to the invention an aqueous gel-forming system, stabilized as discussed above, is applied into or onto the article to be treated or into the surroundings thereof, and oxygen saturation of the gel-forming system is suspended at an appropriate time.