Invention Grant
- Patent Title: Production of warm-mix asphalt compositions utilizing a polyhydric alcohol
- Patent Title (中): 使用多元醇生产温热沥青组合物
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Application No.: US12148244Application Date: 2008-04-17
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Publication No.: US07935749B2Publication Date: 2011-05-03
- Inventor: David A. Carlson
- Applicant: David A. Carlson
- Agency: Hudak, Shunk & Farine Co. LPA
- Main IPC: C08L95/00
- IPC: C08L95/00

Abstract:
Rubber particles in a water and polyhydric alcohol solution are added to an asphalt whereby the polyhydric alcohol substantially coats the rubber particles resulting in an easily mixed composition with the mixing temperature being reduced to a range of from about 250° F. to about 310° F. resulting in considerable energy savings. In a similar manner, a filler can be substantially coated by polyvinyl alcohol-water solution and the same blended with an asphalt and mixed at reduced temperatures. Another embodiment relates to the utilization of a polyhydric alcohol that is added to an asphalt and mixed therewith at reduced temperatures.
Public/Granted literature
- US20090264561A1 Production of warm-mix asphalt compositions utilizing a polyhydric alcohol Public/Granted day:2009-10-22
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