C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1608
C08L 95/00 (2006.01) C08J 3/00 (2006.01) C08J 3/22 (2006.01)
Patent
CA 1327085
POLYMER-ASPHALT MIXING PROCESS Abstract of the Disclosure The present invention relates to a two stage process for the incorporation of plastic and ethylene-propylene rubber into asphalt. In the first mixing stage, a rubber-rich masterbatch is prepared by mixing asphalt, plastic and the rubber. In the second stage of mixing, additional asphalt is mixed with the masterbatch. The first stage is completed in polymer mixing equipment while the second stage is completed in asphalt mixing equipment. The present process provides a convenient process to incorporate polymer into asphalt, in comparison to prior art processes wherein the polymer is added directly to the asphalt.
584686
Longuet Michel
Seguin Frederick Paul
Polysar Limited
Smart & Biggar
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