Abstract
An asphalt modifier includes bitumen, polyolefin particles, and one or more alkyl terephthalamides. Preparing an asphalt modifier includes combining one or more alkyl terephthalamides, polyolefin particles, and bitumen, and dispersing the polyolefin particles in the bitumen to yield the asphalt modifier. Digesting polyethylene terephthalate includes combining polyethylene terephthalate with an alkylamine or carboxyalkylamine to yield a reaction mixture, and heating the reaction mixture to a temperature between about 20 degrees C. and about 300 degrees C. to yield an alkyl terephthalamide.
| Original language | American English |
|---|---|
| Patent number | 12,227,459 B2 |
| Filing date | 18/02/25 |
| State | Published - 2025 |
NREL Publication Number
- NREL/PT-2A00-93418
Keywords
- high-density polyethylene (HDPE)
- low-density polyethylene (LDPE)
- polypropylene (PP)
- waste poly(ethylene terephthalate) (PET)