Additive composition for polymer-modified asphalt, polymer-modified asphalt composition comprising the same, and method for preparing the same
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United States of America Patent
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Jan 9, 2018
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N/A
app pub date -
Jul 13, 2015
filing date -
Jul 15, 2014
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Abstract
One aspect of the present invention provides an additive composition for polymer-modified asphalt including a block copolymer having a radial structure and a copolymer of an aromatic vinyl compound of which two ends have different molecular weights and a conjugated diene compound, and a method of preparing the same. When asphalt is prepared using the additive composition for polymer-modified asphalt, properties of the existing polymer-modified asphalt may be maintained while content of sulfur may be reduced, viscosity may decrease, and thereby processability and pavement performance may be improved.
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Cited Art Landscape
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