METHOD OF PRODUCING BITUMEN POLYMER MATERIALS Russian patent published in 2012 - IPC C08L95/00 C09D195/00 C08J3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to production of bitumen polymer materials, particularly a method of producing bitumen polymer materials from bitumen and/or oil residues and polyethylene. The method involves preliminary plotting of a characteristic curve of softening temperature (Ts) and dynamic viscosity of the bitumen polymer material versus its composition, mixing the heavy oil material and polyethylene in a mixer at homogenisation temperature and outputting the ready product. The characteristic curve of dynamic viscosity of the bitumen polymer material versus its composition is plotted at temperature which is 10°C higher than softening temperature (Ts+10). Depending on given softening temperatures and dynamic viscosity of the molten end product, based on the plotted curves, the required ratio of heavy oil material and polyethylene is selected.

EFFECT: method enables to obtain bitumen polymer materials with predetermined plastic, rheologic and strength properties, cuts consumption of starting components and reduces power consumption.

2 cl, 2 dwg, 2 ex