Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2006-10-31
2006-10-31
Gorr, Rachel (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C152S513000, C152S516000, C152S520000, C521S174000, C264S051000
Reexamination Certificate
active
07129279
ABSTRACT:
A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler, a surfactant, a colorant, and a mold-release agent. A lightweight tire support can be prepared from a polyurethane-polymer composition by, for example, reaction injection molding. Such a tire support desirably has temperature stability and load-bearing capability.
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Christenson Christopher P.
Cornell Martin C.
O'Neill Robert E.
Priester, Jr. Ralph D.
Schrock Alan K.
Dow Global Technologies Inc.
Gorr Rachel
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