FIELD: chemistry.
SUBSTANCE: present invention relates to poly(urea-urethane) and an article made from said compound, as well as laminated material and a coating composition containing said poly(urea-urethane). The poly(urea-urethane) contains a reaction product of components comprising: (a) at least one urea-urethane prepolymer with isocyanate functionality, containing a reaction product: (1) of at least one urea-urethane prepolymer with isocyanate functionality, containing a reaction product: (i) at least one polyisocyanate; and (ii) at least one aliphatic branched polyol, having 4-18 carbon atoms; where the equivalent ratio NCO:OH is between approximately 1.0:0.05 and approximately 1.0:0.7, and (2) water, where the equivalent ratio NCO: water is approximately between 1.0:0.05 and approximately 1.0:0.7, to form a urea-urethane prepolymer with isocyanate functionality; and (b) at least one aliphatic branched polyol, having 4-18 carbon atoms, or a diol having 2-18 carbon atoms, where the equivalent ratio of isocynate groups to hydroxyl groups is between approximately 1.05:0.1 and approximately 1:1.
EFFECT: synthesis of poly(urea-urethane), products of which are made through casting or reaction injection moulding and have good optical properties, high resistance to impact loads, high impact viscosity, high K-ratio, good ballistic stability, good resistance to solvents and good weather resistance.
19 cl, 110 ex, 33 tbl, 26 dwg
