POLYMER-ASPHALT BINDER FOR ROAD SURFACE AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC C08L95/00 C08L9/06 

Abstract RU 2477736 C2

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing polymer-asphalt binder materials which can be used in road construction. The binder contains asphalt, a block copolymer of alkadiene and styrene, a paraffin-naphthene plasticiser and an aromatic plasticiser. The aromatic plasticiser used is an extract from selective oil purification, and the paraffin-naphthene plasticiser used is a vacuum distillate of the 340-530°C fraction. Components are in the following ratio, in wt % of the weight of the binder: aromatic plasticiser - 3.0-6.0, block copolymer of alkadiene and styrene - 3.0-3.5, vacuum distillate of the 340-530°C fraction - 3.0-9.0, asphalt - up to 100. The method of producing the binder involves successively adding to asphalt at 150-160°C, while stirring, the aromatic plasticiser, the block copolymer of alkadiene and styrene until full dissolution, and then the paraffin-naphthene plasticiser.

EFFECT: method increases the degree of homogenisation of asphalt compositions, thus widening the operating range thereof, which is characterised by softening temperature and brittleness temperature, reduces specific energy consumption when producing polymer-asphalt binder, as well as cost thereof.

2 cl, 1 tbl, 7 ex

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RU 2 477 736 C2

Authors

Kotov Sergej Vladimirovich

Tyshchenko Vladimir Aleksandrovich

Poguljajko Vladimir Anatol'Evich

Zinov'Eva Ljudmila Vladimirovna

Rudjak Konstantin Borisovich

Dates

2013-03-20Published

2011-04-20Filed