Mopping grade asphalts

Details Mopping grade asphalts Mopping grade asphalts

C - Chemistry, Metallurgy

08

L

C08L 95/00 (2006.01) B01F 3/14 (2006.01)

Patent

CA 2522448

Improved mopping grade asphalt compositions and methods of preparing them. Methods according to the invention include mixing asphalt with a gelling agent such as attapulgite or other clay and with thixotropic agents such as synthetic or organic fillers, and optionally with one or more of ether amine or other surfactants. Thixotropic agents may for example include cellulose fibers, polyolefin fibers, and mineral wool. The asphalt compositions are mixed in a shearing mixer at a temperature high enough to provide substantially uniform dispersion of each of the mixed ingredients in the completed composition. Inventive compositions provide viscosities suitable for application at 200 - 350 degrees Fahrenheit or lower, excellent adhesion, and superior sag resistance.

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