BINDER (POLYETHYLENE-TAR BINDER PETB) FOR ROAD COVERING Russian patent published in 2014 - IPC C08L95/00 

FIELD: chemistry.

SUBSTANCE: binder contains in wt %: deeply oxidised tar - 30-40; high pressure polyethylene - 1.5-3.5; elementary sulphur - 0.15-0.45; straight run tar - to 100. Obtained binder possesses both high strength properties and sufficient elasticity. Expensive plasticisers are not used, cheaper and more available components are applied.

EFFECT: extension of assortment of binding materials for road construction works, corresponding to the level of main standard requirements to polymer-bitumen binders.

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