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US 12,110,397 B2Granted
Nanostructured aluminosilicate wax carrier for asphalt
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorsDong-Kyun Seo, Kamil Kaloush, Alireza Samieadel, Elham Fini, Shaojiang Chen
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Abstract
A modified bitumen includes bitumen and a bitumen modifier. The bitumen modifier includes composite particles. The composite particles include aluminosilicate nanostructures defining nanopores and micropores and paraffin wax adhered to surfaces of the aluminosilicate nanostructures. Modifying bitumen includes combining bitumen and the bitumen modifier.
Claims17
A modified bitumen comprising:
- bitumen;
- and
- composite particles comprising:
- aluminosilicate nanostructures comprising nano-zeolite particles and defining nanopores and micropores;
- and
- paraffin wax adhered to surfaces of the aluminosilicate nanostructures,
- wherein a total amount of paraffin wax in the modified bitumen comprises:
- the paraffin wax adhered to the surfaces of the aluminosilicate nanostructures;
- and
- an additional amount of paraffin wax, and
- wherein the total amount of the paraffin wax comprises 0.1 wt % to 10 wt % of a weight of the bitumen and the composite particles.
8 more elements
A method of modifying bitumen, the method comprising:
- combining bitumen and a multiplicity of composite particles, wherein each composite particle comprises:
- aluminosilicate nanostructures comprising nano-zeolite particles and defining nanopores and micropores;
- and
- paraffin wax adhered to surfaces of the aluminosilicate nanostructures, wherein a total amount of paraffin wax in the modified bitumen comprises:
- the paraffin wax adhered to the surfaces of the aluminosilicate nanostructures;
- and
- an additional amount of paraffin wax, and
- wherein the total amount of the paraffin wax comprises 0.1 wt % to 10 wt % of a weight of the bitumen and the composite particles.
5 more elements
A method of forming a bitumen modifier, the method comprising:
- heating zeolite nanostructures comprising nano-zeolite particles and defining nanopores and micropores;
- contacting the zeolite nanostructures with melted paraffin wax;
- and
- solidifying the paraffin wax, thereby adhering the paraffin wax to surfaces of the zeolite nanostructures.
1 more element
A bitumen modifier comprising:
- zeolite nanostructures comprising nano-zeolite particles and defining nanopores and micropores;
- and
- paraffin wax adhered to the zeolite nanostructures.
Dependencies are inferred from the claim text.