Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2008-10-06
2010-11-30
Lee, Rip A. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S113000, C526S114000, C526S118000, C526S119000, C526S160000, C526S170000, C526S941000, C526S943000, C526S348000, C526S348300, C526S348400, C526S348500, C526S348600, C526S352000, C526S346000, C526S347100
Reexamination Certificate
active
07842763
ABSTRACT:
This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.
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Benham Elizabeth A.
Jensen Michael D.
Jerdee Gary
Martin Joel L.
McDaniel Max P.
Chevron Phillips Chemical Company LP
Lee Rip A.
Merchant & Gould P.C.
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