METHOD FOR PRODUCTION OF HARD POLYURETHANE FOAM

METHOD FOR PRODUCTION OF HARD POLYURETHANE FOAM

FIELD: organic chemistry. SUBSTANCE: polyether or mixture of polyethers are mixed with fireproofing compound, surfactant and with frothing agent. Polyisocyanate and catalytic mixture of tertiary amine and potassium dimethylamino propionate (their molar ratio being 30-2:1) are added. Compressive stre...

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Hauptverfasser: Zhitinkina A.K, Tsarfin M.Ja, Varentsova N.V, Petrov E.A, Jakushin M.I, Makarovskij I.A
Format: Patent
Sprache:eng ; rus
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator Zhitinkina A.K
Tsarfin M.Ja
Varentsova N.V
Petrov E.A
Jakushin M.I
Makarovskij I.A
description FIELD: organic chemistry. SUBSTANCE: polyether or mixture of polyethers are mixed with fireproofing compound, surfactant and with frothing agent. Polyisocyanate and catalytic mixture of tertiary amine and potassium dimethylamino propionate (their molar ratio being 30-2:1) are added. Compressive strength of the samples is 318-424 kPa, bending strength is 439-698 kPa. EFFECT: improves efficiency of method. 2 tbl Использование: в качестве теплоизолирующего материала в различных областях народного хозяйства. Сущность изобретения: простой полиэфир или смесь простых полиэфиров с функциональностью не менее двух смешивают с антипиреном, поверхностно-активным веществом и вспенивающим агентом, добавляют полиизоцианат и каталическую смесь третичного амина и диметиламинопропионата калия при их молярном соотношении 30 - 2 : 1 соответственно. Образцы имеют предел прочности при сжатии 318 - 424 кПа, при изгибе 439 - 698 кПа. 2 табл.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title METHOD FOR PRODUCTION OF HARD POLYURETHANE FOAM
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