Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-05-02
2006-05-02
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S490000, C526S348000, C526S281000, C526S280000, C526S308000
Reexamination Certificate
active
07037974
ABSTRACT:
A poly(α-olefin) copolymer obtained from the polymerization of at least one α-olefin having from 2 to about 20 carbon atoms and at least one bulky olefin, the process comprising polymerizing the monomers in the presence of hydrogen and a catalytically effective amount of a catalyst comprising the product obtained by combining a metallocene procatalyst with a cocatalyst; lubricant compositions comprising such poly(α-olefin) copolymer; and a method for improving the viscosity index of a lubricant composition using such poly(α-olefin) copolymer.
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DiMaio Anthony
Matan Thomas P.
Dilworth Michael P.
Lee Rip A.
Uniroyal Chemical Company, Inc.
Wu David W.
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