Metallocene catalyst containing bulky organic group

Patent · Tue Mar 26 00:00:00 EST 1996

OSTI ID:870353

Marks, Tobin J.; Ja, Li; Yang, Xinmin

An ionic metallocene catalyst for olefin polymerization which comprises: (1) a cyclopentadienyl-type ligand, a Group IVB transition metal, and alkyl, aryl, or hydride substituents, as a cation, and (2) a weakly coordinating anion comprising boron substituted with halogenated, such as tetra fluoro, aryl substituents preferably containing silylalkyl substitution, such as para-silyl t-butyldimethyl.

• Research Organization: Northwestern Univ., Evanston, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-86ER13511
• Assignee: Northwestern University (Evanston, IL)
• Patent Number(s): 5,502,017
• Application Number: 08/209,669
• OSTI ID: 870353
• Resource Relation: Patent File Date: 1994 Mar 10
• Country of Publication: United States
• Language: English

Related Subjects

metallocene
catalyst
containing
bulky
organic
ionic
olefin
polymerization
comprises
cyclopentadienyl-type
ligand
ivb
transition
metal
alkyl
aryl
hydride
substituents
cation
weakly
coordinating
anion
comprising
boron
substituted
halogenated
tetra
fluoro
preferably
silylalkyl
substitution
para-silyl
t-butyldimethyl
comprising boron
preferably contain
olefin polymerization
transition metal
catalyst containing
metallocene catalyst
weakly coordinating
preferably containing
olefin polymer
coordinating anion
/502/