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US Patent 7294599 Acidic activator-supports and catalysts for olefin polymerization

Patent 7294599 was granted and assigned to Chevron Phillips Chemical on November, 2007 by the United States Patent and Trademark Office.

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Patent
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Current Assignee
Chevron Phillips Chemical
Chevron Phillips Chemical
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
72945990
Patent Inventor Names
Elizabeth A. Benham0
Qing Yang0
Michael D. Jensen0
Joel L. Martin0
Gil R. Hawley0
Tony Crain0
Max P. McDaniel0
Date of Patent
November 13, 2007
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Patent Application Number
108770390
Date Filed
June 25, 2004
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Patent Citations Received
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US Patent 12134591 Methanol production from methane utilizing a supported chromium catalyst
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US Patent 11993667 Catalyst composition and method for preparing polyethylene
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US Patent 11998902 Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems
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US Patent 11999679 Chromium-catalyzed production of alcohols from hydrocarbons
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US Patent 11999807 Particle size control of supported chromium catalysts in loop slurry polymerization reactors
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US Patent 12017970 Transition metal-catalyzed production of alcohol and carbonyl compounds from hydrocarbons
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US Patent 12059672 Modified supported chromium catalysts and ethylene-based polymers produced therefrom
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...
Patent Primary Examiner
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Caixia Lu
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Patent abstract

This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.

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