HARDENER FOR PRODUCTION SOLID FOAMS OR COMPACT STRUCTURE FROM AQUEOUS SOLUTIONS

The production of foams or compact materials by adding an acidic hardener to an aqueous system containing an organic material selected from urea-formaldehyde and thiourea-formaldehyde and allowing said system to set to a hardened mass, is improved by employing boron phosphate as the hardener. The ur...

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Bibliographische Detailangaben
1. Verfasser:	RADEMACHERS, JAKOB
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL PROCESSES OF COMPOUNDING LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	The production of foams or compact materials by adding an acidic hardener to an aqueous system containing an organic material selected from urea-formaldehyde and thiourea-formaldehyde and allowing said system to set to a hardened mass, is improved by employing boron phosphate as the hardener. The urea-formaldehyde or thiourea-formaldehyde is used optionally together with an alkali metal silicate. A polyhydric alcohol such as glycerine and/or a gelling agent may also be included along with a foaming agent.