POLYMER-BITUMEN BINDER AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC C08L95/00 C08L9/06 C08K3/04 B82B1/00 

FIELD: chemistry.

SUBSTANCE: binder contains bitumen and a polymer component consisting of industrial oil which is nano-modified with single-wall carbon nanotubes without purification from impurities of carbon and metal nanoparticles, and a polymer. The polymer component used is thermoplastic elastomer DST-30R-01. Components are in the following ratio, wt %: DST-30R-01 - 1.1-3.4; industrial oil - 2.2-9.4; single-wall carbon nanotubes - 0.001-0.03; bitumen - the balance. The method of producing the binder involves adding the polymer component to bitumen while stirring. Before adding to bitumen, the polymer component is prepared by mixing the single-wall carbon nanotubes with industrial oil at temperature of 100-120°C and then adding the polymer, after which the obtained mixture is added to bitumen while stirring at 120-160°C.

EFFECT: obtaining highly homogeneous bitumen binder, having improved physical and mechanical properties while reducing consumption of polymer and industrial oil.

2 cl, 2 dwg, 2 tbl, 5 ex