CPC C08L 95/00 (2013.01) [C08K 11/005 (2013.01); C08L 9/08 (2013.01); C08L 25/10 (2013.01); C08J 3/20 (2013.01); C08L 2555/52 (2013.01); C08L 2555/74 (2013.01); C08L 2555/86 (2013.01)] | 20 Claims |
1. A modified asphalt binder comprising an asphalt binder, a solvent deasphalted pitch, and a polymeric material, the modified asphalt binder having two or more of:
a viscosity of from about 1900 poise to about 3000 poise at 60° C. (140° F.),
a G*/sin delta value in excess of 1.0 kPa at temperatures ranging from 64° C. to 67° C.,
a non-recoverable creep compliance 3.2 kPa (Jnr3.2) value of <4.5 kPa−1 at 64° C. and/or at 67° C.,
a penetration of from about 45 to about 77 dmm at 25° C., where dmm represents 0.1 mm of penetration as measured with a penetrometer under ASTM D5, or
a softening point greater than about 50° C.
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