Chemically modified asphalt compositions

Details Chemically modified asphalt compositions Chemically modified asphalt compositions

C - Chemistry, Metallurgy

08

L

400/1127, 400/16

C08L 95/00 (2006.01) C08L 7/00 (2006.01) C08L 9/00 (2006.01) C03C 25/02 (1980.01)

Patent

CA 1109991

ABSTRACT OF THE DISCLOSURE A chemically modified asphalt prepared by reacting an asphalt with a polymerizable vinyl monomer and a rubbery polymer whereby the rubbery polymer is chemically integrated with the asphalt. The reaction is carried out at a temperature at which the vinyl aromatic monomer and the rubbery polymer react with the asphalt. The chemically modified asphalt compositions of the invention can be used in the treatment of glass fibers as well as in road paving applications and the like. The rubbery polymer can be selected from the group consisting of homopolymers of a conjugated diene and copolymers formed of a conjugated diene and at least one ethylenic monomer copolymelizable therewith.

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