POLYOL COMPOSITION FOR OBTAINING HARD FOAM POLYURETHANE FOR PRODUCTION OF SHELL Russian patent published in 2014 - IPC C08L71/02 

FIELD: chemistry.

SUBSTANCE: polyol composition for obtaining hard foam polyurethane for the production of the shell, including polyetherpolyols, contains as a polyol reagent three polyols: a product of the interaction of oxy propylene with a water solution of ethylenediamine with the hydroxyl number in the ranges of 700-800 mg KOH/g, simple polyether based on oxy propylene and glycerin with the hydroxyl number of 430-480 mg KOH/g, sucrose polyether - the product of oxypropylation of a mixture of sucrose and water with the hydroxyl number in the ranges of 480-520 mg KOH/g, polyether, based on oxide of propylene and glycerol with the hydroxyl number of 430-480 mg KOH/g, sucrose polyether - the product of oxypropylation of a sucrose and water mixture with the hydroxyl number in the range of 480-520 mg KOH/g, a fire retardant additive - tri-(β-chloroethyl) phosphate, it also contains a catalyst dimethylethanolamine, a foam regulator, water.

EFFECT: invention makes it possible to create the polyol composition for the production of the shell with the required time parameters, density and physical-mechanical indices.

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