Bitumen/polymer compositions with improved stability and...

Details Bitumen/polymer compositions with improved stability and... Bitumen/polymer compositions with improved stability and...

C - Chemistry, Metallurgy

08

L

C08L 95/00 (2006.01) C09D 195/00 (2006.01)

Patent

CA 2224415

The invention discloses bitumen/polymer compositions containing a bitumen or a mixture of bitumens and, reckoned by weight of bitumen, 0.3 % to 20 % of at least one primary polymer selected among certain elastomers and plastomers and 0.01 % to 12 % of at least one olefinic polymer bearing epoxy or COOH groupings. The said compositions are useful, directly or after dilution, to form bitumen/polymer binders for carrying out road surfacing, for coated materials or waterproof coatings.

Ces compositions bitume/polymère renferment un bitume ou mélange de bitumes et, comptés en poids du bitume, 0,3 % à 20 % d'au moins un polymère primaire choisi parmi certains élastomères et plastomères et 0,01 % à 12 % d'au moins un polymère oléfinique porteur de groupements époxy ou COOH. Lesdites compositions sont utilisables, directement ou après dilution, pour former des liants bitume/polymère pour la réalisation de revêtements superficiels routiers, d'enrobés ou de revêtements d'étanchéité.

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