FOAMED POLYURETHANE Russian patent published in 2012 - IPC C08G18/12 C08G18/22 C08G18/24 C08G18/32 C08G18/40 C08G18/48 C08G18/66 C08G101/00 C08G65/329 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a polymer-modified polyol, where olamine reacts with organic polyisocyanate in the presence of a polyol and at least one catalyst which is a metal salt of an organic acid, where the olamine reacts, at least preferably polyfunctionally, with isocyanate, where said catalyst or at least one said catalyst is a metal salt of an organic acid which does not have a metal-carbon bond, and where viscosity of the polymer-modified polyol is at least 2250 mP when measured at 25°C using a Brookfield viscosimeter or is compatible with a Brookfield viscosimeter system. The invention also describes versions of the method of producing a polymer-modified polyol, where the catalyst has the formula M(O.CO.R.CH₃)₂, where M is a metal, R is a carbon chain with 6-20 carbon atoms, wherein the chain is straight or branched with side functional OH groups, and/or with or without double bonds, and where the catalyst is a metal salt of a fat monohydroxy acid, respectively. Described also is a polymer-modified polyol produced using the disclosed methods, a method of producing polyurethane foam plastic (foamed polyurethane) using such a polyol and elastic polyurethane foam plastic (elastic foamed polyurethane) produced using said method.

EFFECT: use of metal-carboxylate catalysts when producing polymer-modified polyols, which results in stability of the obtained polyols, stability of foamed products from such polyols, as well as solving the environmental problem.

27 cl, 16 ex, 8 tbl, 3 dwg