POLYMERIZATION CATALYST SYSTEMS COMPRISING SUBSTITUTED HAFNOCENES

Patent №

US 6,242,545

Granted

2001-06-05

Filed 1997

Owner

EXXON CHEMICAL PATENTS INC.

+1 more

Lab

—

AI components

nlp

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

08986696

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The present invention relates to a process for the polymerization of monomers utilizing a bulky ligand hafnium transition metal metallocene-type catalyst compound, to the catalyst compound itself and to the catalyst compound in combination with an activator. The hafnocene comprises at least one cyclopentadienyl ligand including at least one linear or isoalkyl substituent of at least 3 carbon atoms.

Natural languageC08F 210/16C08F 10/00C08F 210/14C08J 5/18C08F 4/65904C08F 4/65912C08F 4/65916C08F 2410/01+3 more

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Ownership

EXXON CHEMICAL PATENTS INC.

assignment · 89180373

UNIVATION TECHNOLOGIES, LLC

assignment · 115380094

Assignors

JEJELOWO, MOSES O., KAO, SUN-CHUEH

On an employer assignment, the assignors are typically the inventors.

From the same owner

POLYMERIZATION CATALYST SYSTEM COMPRISING HETEROCYCLIC FUSED CYCLOPENTADIENIDE LIGANDSUS 6,451,938 · 2002 METHANOL, OLEFIN, AND HYDROCARBON SYNTHESIS PROCESSUS 6,444,712 · 2002 METALLOCENE COMPOSITIONSUS 6,399,723 · 2002 METALLOCENE COMPOSITIONSUS 6,380,120 · 2002 METALLOCENE COMPOSITIONSUS 6,380,124 · 2002 METALLOCENE COMPOSITIONSUS 6,380,330 · 2002 METALLOCENE COMPOSITIONSUS 6,376,407 · 2002 METALLOCENE COMPOSITIONSUS 6,376,408 · 2002

Cited by (5)

FORMATION OF ZIEGLER-NATTA CATALYST USING NON-BLENDED COMPONENTSUS 10,351,640 · 2019 FORMATION OF A ZIEGLER-NATTA CATALYSTUS 9,650,448 · 2017 FLUORENYL CATALYST COMPOSITIONS AND OLEFIN POLYMERIZATION PROCESSUS 7,514,510 · 2009 Patent US 7,847,036US 7,847,036 Patent US RE40751US RE40751

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