COMPOSITION FOR PRODUCING RIGID SPUTTERED POLYURETHANE FOAM Russian patent published in 2014 - IPC C08G18/12 C08G18/16 C08G18/32 C08G18/48 C08G101/00 C08L75/04 C09K3/10 

FIELD: chemistry.

SUBSTANCE: composition contains a hydroxyl-containing compound - oxypropylethylenediamine and an ether based on propylene oxide, a catalyst - dimethylethanolamine, a foaming agent - water, a foam regulator, polyisocyanate and a fire retardant, wherein the foam regulator is a surfactant based on non-hydrolysable silica gel copolymer; the composition further contains an ether based on ethylene oxide with ethylene glycol, a fire retardant in form of trichloropropyl phosphate and a mixture of catalysts - triethylenediamine/dipropylene glycol, pentamethyldiethylenetriamine, with the following ratio of components, wt%: oxypropylethylenediamine 7-12; ether based on propylene oxide 7-9; ether based on ethylene oxide with ethylene glycol 7-9; dimethylethanolamine 1-1,2; triethylenediamine/dipropylene glycol 1.3-1.5; pentamethyldiethylenetriamine 2.8-3; trichloropropyl phosphate 10-12; water 5.2-5.4; non-hydrolysable silica gel copolymer 1.1-1.2; polyisocyanate 50.1-53.1.

EFFECT: improved physical and mechanical properties of the rigid sputtered polyurethane foam, low density, heat-conductivity, water absorption and start time which is sufficient to form a quality foamed article with uniform density in the volume.

2 tbl