Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2009-11-30
2010-10-26
Szekely, Peter (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S068000, C524S071000
Reexamination Certificate
active
07820739
ABSTRACT:
A method for forming a modified asphalt binder composition, the method comprising preparing a phosphorus pentasulfide-binder concentrate by introducing and mixing phosphorus pentasulfide and asphalt binder, where the phosphorus pentasulfide-binder concentrate includes greater than 0.5 parts by weight phosphorus pentasulfide per 100 parts by weight asphalt, preparing a polymer-binder concentrate by introducing and mixing polymer and asphalt binder, where the polymer-binder concentrate includes greater than 5 parts by weight polymer per 100 parts by weight asphalt, and introducing and mixing the phosphorus pentasulfide-binder concentrate with the polymer-binder concentrate to form a modified asphalt binder composition, where the phosphorus pentasulfide includes a blend of P4S10and P4S9.
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Boerner Peter W.
Graves Daniel F.
Hergenrother William L.
Rademacher Christine
Reece Timothy P.
Firestone Polymers, LLC & Heritage Research Group
Hooker Meredith E.
Reginelli Arthur
Szekely Peter
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