Phillips Petroleum Company

Other

Rolf L Geerts

Syriac J Palackal

M Bruce Welch

Helmut G Alt

Konstantinos Patsidis

Max P McDaniel

Gil R Hawley

Paul D Smith

Eric T Hsieh

Tara G Hill

Bernd Peifer

Elizabeth Ann Benham

Ted M Pettijohn

Harold R Deck

Darryl R Fahey

Peter P Chu

Scott E Kufeld

Michael Schmid

Joseph S Shveima

James L Smith

Robert M Infield

Max P Mcdaniel

Jay Janzen

Kevin J Hess

Charles D Houser

Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.

Organometallic fluorenyl compounds, preparations, and use

A catalyst system composition comprising a chromium compound supported on a silica-titania support, wherein said catalyst system has been reduced with carbon monoxide, and a cocatalyst selected from the group consisting of i) alkyl lithium compounds, ii) dialkyl aluminum alkoxides in combination with at least one metal alkyl selected from the group consisting of alkyl zinc compounds, alkyl aluminum compounds, alkyl boron compounds, and mixtures thereof and iii) mixtures thereof can be used to polymerize olefins to produce a low density polymer with a decreased melt index and/or high load melt index. This catalyst system also can be used with a Ziegler-Natta catalyst system to polymerize olefins. Polymerization processes using these catalyst system compositions are also provided. Polymers resulting from polymerization processes using the inventive catalyst and cocatalyst systems have a decreased high load melt index, decreased melt index, increased fluff bulk density, and are useful as components to make bi-modal molecular weight resins for film and/or blow molding applications.

Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst

Bridged and unbridged fluorenyl-containing metallocenes of the formula R&Prime; (FlR )(CpR )MQ wherein Fl is a fluorenyl radical, Cp is a cyclopentadienyl, indenyl, tetrahydroindenyl, or fluorenyl radical, each R is an organo radical, R&Prime; is a structural bridge linking (FlR ) and (CpR ), M is a metal selected from the group consisting of IVB, VB, and VIB metals, each Q is selected from the group consisting of hydrocarbyl or hydrocarbyloxy radicals and halogen, x is 1 or 0, k is an integer sufficient to fill out the remaining valences of M, n is in the range of 0 to 7, and m is 0 to 7, further characterized by the fact that if (CpR ) is unsubstituted fluorenyl and metallocene is an unbridged metallocene, then n is 1 to 7 and if R&Prime; is 1,1-dimethylmethylene and (CpR ) is unsubstituted cyclopentadienyl or 3-methylcyclopentadienyl, then n is 1 to 7.

Organometallic fluorenyl compounds, preparation, and use

Bridged fluorenyl-containing metallocenes of metals of Groups 4-6 and their use in forming homopolymers of alpha olefins or polymers of ethylene and optionally minor amounts of alpha olefins, wherein in each case at least one of the cyclic groups of the bridged ligand is a fluorenyl and the other is selected from indenyl, tetrahydroindenyl, fluorenyl, and in the case of the polymerization of ethylene optionally cyclopentadienyl.

Processes are provided that produce organo-aluminoxane compositions. Said processes comprise: desiccating a first mixture, where said first mixture comprises organo-aluminoxane molecules intermixed with a solvent, to produce a first composition, where said first composition comprises organo-aluminoxane molecules; mixing said first composition with a solvent to produce a second mixture, where said second mixture comprises organo-aluminoxane molecules and said solvent; contacting said second mixture with a insolublization agent to produce said organo-aluminoxane compositions. A polymerization process using a catalyst that comprises an organo-aluminoxane composition is also provided.

Processes to produce organo-aluminoxane compositions

In accordance with the present invention there is provided a new solid aluminoxy composition prepared by reacting aluminoxane with a boroxine. Still further there is provided olefin polymerization catalyst systems incorporating the inventive solid aluminoxy composition. Still further, there is provided processes of polymerization using the inventive solid aluminoxy composition.

Organo-aluminoxy product and use

An ethylene copolymer composition is provided that comprises: (a) an ethylene copolymer that has been produced with a metallocene catalyst system; (b) a crosslinking agent; and (c) a crosslinking coagent. This composition when crosslinked exhibits outstanding physical properties.

Ethylene copolymer compositions

In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another embodiment, the organoaluminoxane can be prepared in situ by the process comprising reacting a hydrocarbylaluminum compound, water, and the ene-ol compound. Further there is provided olefin polymerization catalyst systems comprising the organoaluminoxy product and at least one transition metal-containing catalyst. Optionally, the catalyst system is prepolymerized in the presence of at least one olefin to form a prepolymerized catalyst system. Still further there is provided processes for the polymerization of olefins using the catalyst systems.

Organoaluminoxy product, catalyst systems, preparation, and use

Unbridged fluorenyl containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.

Organometallic fluorenyl compounds and use thereof in olefin

Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.

Silyl bridged metallocenes and use thereof

A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of preparing a supported metallocene comprising reacting the supported cyclopentadiene-type compound with a transition metal compound under suitable conditions. There is also provided a process for producing bridged cyclopentadiene-type ligands having a bridge having branch that has a terminal vinyl group. Also metallocenes of these ligands are provided. Still further there is provided a process for producing bridged cyclopentadiene-type ligands having a bridge having a branch that has a terminal active halogen. The resulting new ligands and supported metallocenes produced therefrom are also provided. There is further provided supported metallocene catalysts wherein at least two metallocenes of differing effectiveness are both bonded to an inorganic support having surface hydroxy groups. Olefin polymerization employing the inventive bridged supported metallocenes is also provided, as well the resulting polymer products.

Metallocenes and processes therefor and therewith

9-substituted fluorenyl-containing metallocenes and their use in the polymerization of olefins is disclosed. In addition, novel 9-cyclohexylfluorenyl or 9-phenylfluorenyl compounds are disclosed. Also methods for preparing such 9-substituted fluorenyl compounds are presented.

Growing community of inventors

Bartlesville, OK, United States of America

Rolf L Geerts