Composition of Asphalt Containing Tapered Block Copolymer
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United States of America Patent
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Issued Date -
Jul 16, 2009
app pub date -
Nov 21, 2008
filing date -
Nov 21, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a modified asphalt composition comprising asphalt and a tapered block copolymer, which contains short butadiene monomer blocks at both ends of aromatic vinyl monomer blocks, that provides comparable or better softening point when compared to conventional compositions, and exhibits superior ductility at low temperature, thereby being applicable to road paving, waterproof sheets and sealants.
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Cited Art Landscape
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