MODIFIED OIL BITUMEN AND TWO-COMPONENT RESIN COMPOSITION Russian patent published in 2012 - IPC C08L95/00 

FIELD: chemistry.

SUBSTANCE: The invention relates to modified oil bitumens and two-component resin compositions. The modified bitumen comprises a straight distillation oil bitumen (A1) in quantity of 25 to 70 mass.%, a viscosity breaking agent (B) in the form of industrial oil, in quantity of 20 to 65 mass.% and a copolymer (C) in quantity of 0,5 to 7 mass.%. The copolymer (C) contains a structure unit consisting of polyalkylene glycol allyl ether (C1); unsaturated dicarboxylic acid and/its anhydride (C2); and aromatic vinyl composition (C3). The molar ratio roughly equals to 1:1:1. The two-component resin composition consists of the main component and a hardening agent. The main component comprises a straight distillation oil bitumen (A1) in quantity of 5 to 45 mass.%, a viscosity breaking agent (Bin quantity of 10 to 40 mass.%, a copolymer (C), comprising the structural units (c1), (c2) and (c3), ranging from 0,1 to 2 mass.%, a polyolefin polyol (D) in quantity of 5 to 30 mass.% and a polyester polyol (E) in quantity of 3 to 20 mass.%. Furthermore, the hardening agent contains diisocyanate (F).

EFFECT: the modified oil bitumen has excellent dispersion properties and high compatibility with polar materials which can be used in various low-cost compositions, including groundwork.

7 cl, 2 tbl, 1 dwg, 4 ex.