Improvements in or relating to bituminous materials

Details Improvements in or relating to bituminous materials Improvements in or relating to bituminous materials

C - Chemistry, Metallurgy

08

K

C08K 5/00 (2006.01) C08L 95/00 (2006.01) C09K 3/18 (2006.01) C08K 5/098 (2006.01) C08K 5/20 (2006.01)

Patent

CA 2602160

The use of a surfactant to improve the resistance of asphalt to degradation by a de-icer and/or an anti-icer, and optionally in addition to improve the resistance of said asphalt to degradation by water. The surfactant may be a fatty acid or a fatty acid derivative, such as at least one polymerised fatty acid selected from dimers and trimers of an unsaturated fatty acid, or one or more amine or substituted amine compounds, such as a reaction product of tall oil fatty acids and polyalkylenepolyamines.

La présente invention a trait à l'utilisation d'un tensioactif pour l'amélioration de la résistance de l'asphalte à une dégradation par un dégivreur ou un antigivreur, et éventuellement en outre l'amélioration de la résistance dudit asphalte à la dégradation par l'eau. Le tensioactif peut être un acide gras ou un dérivé d'acide gras, par exemple au moins un acide gras polymérisé choisi parmi des dimères ou trimères d'un acide gras insaturé, ou un ou des composés aminés ou à substitution amine, tels qu'un produit réactionnel d'acides gras de résine liquide et des polyalkylène polyamines.

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