COMPOSITION FOR PRODUCTION OF SPRAYED HARD POLYURETHANE FOAMS Russian patent published in 2009 - IPC C08G18/18 C08G18/48 C08G101/00 C09K3/10 

FIELD: technological processes.

SUBSTANCE: invention is related to composition for production of sprayed hard polyurethane foams of heat- and hydro-insulation purpose, for instance for sealing of constructional structures (roof, walls and floors), for arrangement of refrigerating chambers, for heat insulation of pipelines, etc. Composition includes, at certain mass ratio, the following components: hydroxyl containing compound - oxypropylethylenediamine and simple ether based on propylene oxide, catalyst is dimethylethanolamine, foaming agent is water, foam regulator is surface active substance on the basis of oxyalkyl methyl siloxane block copolymers and polyisocyanate, and also additionally, fire retardant - trichloroethyl phosphate, complex catalyst - tin octoate, acetous sodium, triethanol amine and solution of catalytically active salts in glycols.

EFFECT: ecologically safe fire resistant composition makes it possible to provide for high strength indicators (compression strength), density of final hard foam plastic and start time sufficient for shaping of high-quality foamed product with even density in volume and proper external surface.

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