ETHERURETHANEACRYLATE OLIGOMER Russian patent published in 2015 - IPC C08G18/34 C08G18/48 C08G18/76 C08G18/24 

FIELD: chemistry.

SUBSTANCE: etherurethaneacrylate oligomer is applied for the preparation of filling compositions for various purposes. Etherurethaneacrylate oligomer is obtained with the application of 100 wt. p. of an isocyanate-containing prepolymer "СКУ-ПФЛ"-100, 16-21 wt. p. of a monomethacryl ether of ethylene glycol and 0.001-0.01 wt. p. of tin dibutyldilaurate. Synthesis is carried out to the complete expenditure of isocyanate groups. The oligomer represents a transparent liquid of the light yellow colour with the viscosity of 200-300 Pa·s.

EFFECT: obtaining a material based on it with the low temperature of crystallisation, satisfactory casting properties, and good mechanical characteristics.

1 tbl, 4 ex