Mixed waste plastics compatibilizers for asphalt
AssigneesArizona Board of Regents on behalf of Arizona State University, Alliance for Sustainable Energy, LLC
InventorsElham Fini, Robert Allen, Albert Hung, Matthew Green
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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° C. and about 300° C. to yield an alkyl terephthalamide.
Claims12
An asphalt modifier comprising:
- bitumen;
- polyolefin particles;
- and
- one or more alkyl terephthalamides represented by the following structure:
- wherein each R is independently a C6 to C20 alkyl or C6-C20 carboxyalkyl, and at least one R is a C6 to C20 alkyl, and the polyolefin particles are dispersed throughout the bitumen.
Dependencies are inferred from the claim text.