Back to results
US 2026/0139138 A1Published application
Highly elastic asphalt binders for cold region pavement applications
AssigneeRowan University
InventorsAyman Ali, Yusuf Mehta, Goli Arunkumar
Life of this patent
Estimating the term…
Abstract
In some implementations, an asphalt binder may include a base asphalt binder material, along with a styrene butadiene styrene polymer, which is present in an amount of at least about 7% by weight of the base asphalt binder material. The asphalt binder may also include a softening agent, which is present in an amount of at least about 7% by weight of the base asphalt binder material.
Claims20
An asphalt binder comprising a blend of:
- a base asphalt binder material;
- a styrene butadiene styrene polymer, which is present in an amount of at least about 7% by weight of the base asphalt binder material;
- and
- a softening agent, which is present in an amount of at least about 7% by weight of the base asphalt binder material.
1 more element
A method of preparing an asphalt binder, the method comprising:
- heating a base asphalt binder material to a shear temperature;
- blending added styrene butadiene styrene polymer into the heated base asphalt binder material at a first shear speed for a first period of time;
- blending added sulfur into the blended styrene butadiene styrene polymer and heated base asphalt binder material mixture at a second shear speed for a second period of time, the second shear speed being lower than the first shear speed;
- and
- blending added softening agent into the blended sulfur, styrene butadiene styrene polymer, and heated base asphalt binder material mixture for a third period of time.
2 more elements
A method of preparing an asphalt binder, the method comprising:
- heating a base asphalt binder material to a shear temperature;
- blending added styrene butadiene styrene polymer into the heated base asphalt binder material at a first shear speed for a first period of time;
- blending added sulfur into the blended styrene butadiene styrene polymer and heated base asphalt binder material mixture at a second shear speed for a second period of time, the second shear speed being lower than the first shear speed;
- and
- blending added corn oil in an amount of at least about 7% by weight of the base asphalt binder material into the blended sulfur, styrene butadiene styrene polymer, and heated base binder material mixture for a third period of time.
2 more elements
Dependencies are inferred from the claim text.