Polyolefin composition with molecular weight maximum occurring in that part of the composition that has the highest comonomer content

The invention relates to a polyolefin copolymer composition produced with a catalyst having a metallocene, complex in a single reactor in a process for the polymerization of an -olefin monomer with one or more olefin comonomers, and a molecule weight maximum which occurs in that 50 percent by weight...

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Bibliographische Detailangaben
Hauptverfasser:	MADDOX, PETER J., KARJALA, THRESA P, FRYE, CHRISTOPHER J, HOWARD, PHILIP, CADY, LARRY D
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a polyolefin copolymer composition produced with a catalyst having a metallocene, complex in a single reactor in a process for the polymerization of an -olefin monomer with one or more olefin comonomers, and a molecule weight maximum which occurs in that 50 percent by weight of the composition which has the highest weight percent comonomer content. Preferably, the composition has a comonomer partitioning factor Cpf which is equal to or greater than 1.10 or molecular weight partitioning factor Mpf which is equal to or greater than 1.15. Preferred compositions also have at least 0.01 long chain branches per 1000 carbon atoms along the polymer backbone. These compositions with reverse molecular engineering have superior properties and are easily processable due to the simultaneous presence of the association of high molecular weight with high comonomer content and of long chain branching.