Bio-based additive for asphalt
AssigneePOET Research, Inc.
InventorAlex T. McCurdy
Life of this patent
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Abstract
Compositions comprising asphalt and corn oil are provided, as are the shingles made using the compositions, methods for making the compositions, and methods for making the shingles. The compositions comprise mixtures of asphalt and corn oil, and the mixtures are oxidized to attain desirable properties.
Claims14
A shingle coating composition comprising an oxidized mixture of asphalt and corn oil, wherein the corn oil is obtained as a byproduct of ethanol fermentation and includes fatty acid ethyl esters obtained from esterification during the fermentation, wherein the fatty acid ethyl esters include ethyl linoleate, ethyl linolenate, ethyl oleate, ethyl palmitate, and ethyl stearate;
- and
- wherein the corn oil contains the fatty acid ethyl esters in an amount of about 10% w/w or more.
A shingle comprising a base and a coating on the base, the coating comprising an oxidized mixture of asphalt and corn oil, wherein the corn oil is obtained as a byproduct of ethanol fermentation and includes fatty acid ethyl esters obtained from esterification during the fermentation and wherein the fatty acid ethyl esters include ethyl linoleate, ethyl linolenate, ethyl oleate, ethyl palmitate, and ethyl stearate;
- and
- wherein the corn oil contains the fatty acid ethyl esters in an amount of about 10% w/w or more.
Dependencies are inferred from the claim text.