Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2006-03-02
2008-12-02
Boykin, Terressa M (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C528S480000
Reexamination Certificate
active
07459488
ABSTRACT:
A process and polymer foam composition for removing hydrocarbon material from wanted material containing water by bringing an isocyanate-containing prepolymer and a gaseous expansion agent, with or without a diluent and/or cell control agent, into contact with the materials, allowing the composition to react with the water to form a flexible foam and removing the polymer foam obtained from the wanted material.
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Sven Uwe Keimling and Michael Bader, “Burning Issues: Fire and Price,” Hamburg, Germany, undated.
Donahue Pat
Huber E. Richard
Murray Pat L.
Andrew Kurth LLP
Boykin Terressa M
Polyfoam Products, Inc.
Rommelmann Douglas W.
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