METHOD FOR PRODUCING CROSS-LINKED COMPOSITIONS OF POLYMER AND BITUMEN WITH USING NO LINKING AGENTS Russian patent published in 2015 - IPC C08J3/22 C08J3/24 C08L95/00 

FIELD: chemistry.

SUBSTANCE: invention refers to a method for producing cross-linked compositions of a polymer and bitumen with using no linking agent. The method for preparing the cross-linked compositions of the polymer and bitumen with using no linking agent provides at least one bitumen and at least one polymer composition containing at least 80 wt % of the polymer composition weight, diblock copolymer of monovinylaromatic hydrocarbon block and linked diene block having a molecular weight of 80000 g/mole or more and containing double-bond links in position 1-2 originating from the linked diene of 1.5% or more of the total weight of the linked diene links come in contact at 180°C to 220°C for a period of time of 8 h to 48 h. There are also declared versions of the method, versions of the cross-linked compositions of the polymer and bitumen, the method for producing the cross-linked stock solution with using no linking agent, and the cross-linked stock solution.

EFFECT: producing the cross-linked compositions of the polymer and bitumen possessing the equivalent or improved properties as compared to the compositions containing the linking agent.

25 cl, 3 tbl, 6 ex