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US Patent 12091475 Process for preparation of multimodal polyolefin

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Is a

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Andrei Merenov0

Job Daniel Guzman-Carrazco0

Francesco Bertola0

Maryam Khodadadian Miri0

Maryam Tamaddoni0

Date of Patent

September 17, 2024

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Patent Application Number

172846050

Date Filed

September 12, 2019

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Patent Citations

US Patent 9051458 Multimodal polyethylene molding composition for producing pipes having improved mechanical properties

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US Patent 9175120 Polymerisation process

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US Patent 11001649 Multimodal polyethylene pipe

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US Patent 10696826 Bimodal high density polyethylene

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US Patent 11427670 Composition and process

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US Patent 6924340 Process for removal of intermediate hydrogen from cascaded polyolefin slurry reactors

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US Patent 8557932 Process for the preparation of a multimodal polyolefin polymer with improved hydrogen removal

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Patent Primary Examiner

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CPC Code

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Patent abstract

The invention relates to a process for the preparation of a multimodal copolymer of ethylene and a comonomer which is 1-hexene and/or 1-butene in a series of polymerization reactors comprising at least a first polymerization reactor and a second polymerization reactor, the process comprising: a) feeding ethylene, hydrogen and catalyst components (

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