METHOD OF PRODUCING POLYMER-POLYOL, DISPERSED POLYOL COMPOSITION, ELASTIC POLYURETHANE, AND MOLDED PRODUCT Russian patent published in 2006 - IPC C08G65/329 C08G18/48 C08L71/02 

FIELD: polymer materials.

SUBSTANCE: production of polymer-polyol comprises two staged performed under laminar motion conditions at elevated temperature and pressure. In the first stage, a monomer and catalyst are consecutively added to polyether or polyether mixture with molecular weight 2000-6000 and primary hydroxyl content 40-80%, whereupon mixture is stirred to form adduct. In the second stage, monomer and catalyst are consecutively added to above adduct and resulting reaction mixture is then stirred. Monomer is selected from styrene, acrylonitrile, acrylate, butadiene, and mixture thereof.

EFFECT: enabled production of polymer with stable particle size.

6 cl, 3 tbl, 5 ex