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US 2025/0388754 A1Published application
Sulfur-modified bitumen compositions
OwnerElham Fini, Albert Hunginventors
Life of this patent
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Abstract
Preparing a modified bitumen composition includes combining bitumen with elemental sulfur to yield a mixture, and crystallizing the elemental sulfur on a surface of the bitumen to yield a layer of elemental sulfur on the surface of the bitumen. The mixture typically includes about 5 wt % to about 15 wt % of the elemental sulfur. A modified bitumen composition includes A modified bitumen composition includes bitumen and elemental sulfur on a surface of the bitumen. The modified bitumen composition includes about 5 wt % to about 15 wt % of the elemental sulfur.
Claims21
1-7. (canceled)
A modified bitumen composition comprising a mixture of:
- bitumen;
- and
- elemental sulfur, wherein the modified bitumen composition comprises about 5 wt % to about 15 wt % of the elemental sulfur, and at least some of the elemental sulfur is on a surface of the modified bitumen.
Dependencies are inferred from the claim text.