Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-05-03
2011-05-03
Harlan, Robert D. (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C106S276000, C106S277000
Reexamination Certificate
active
07935749
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.
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Harlan Robert D.
Hudak, Shunk & Farine Co. LPA
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