C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
252/109, 260/426
C07F 17/00 (2006.01) B01J 31/22 (2006.01) C08F 10/00 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)
Patent
CA 1326676
ABSTRACT OF THE DISCLOSURE A novel transition-metal compound having a bis- substituted cyclopentadienyl ligand of bridged structure (I) and a novel mixture of the compound (I) with an aluminoxane (B), each useful as catalyst com- ponent(s) for stereoregular olefin polymerization are provided, which compound (I) is expressed by the formula Image ( I ) wherein M is Zr or Hf; Y is Si or Ge; R1-C5H4-n and R1q-C5H4-q each represent an unsubstituted or substituted cyclopentadienyl group; n and q each represent an integer of 0 to 4, but cases of n=q=0 and n=q=4 are excluded; R1s may be same or different and each represent H, silyl or hydrocarbon radical; R2s may be same or different and represent H or hydrocarbon radical; and X s may be same or different and represent H, halogen or hydrocarbon radical; and which aluminoxane is expressed by the formula (II) or the formula (III) Image ??? [ II ] Image ??? [ III ] wherein m represents an integer of 4 to 30 and R3 represents a hydrocarbon radical.
582530
Mise Takaya
Miya Shinya
Yamazaki Hiroshi
Yoshimura Takashi
Chisso Corporation
Marks & Clerk
The Institute Of Physical And Chemical Research
LandOfFree
Transition-metal compound having a bis-substituted-... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transition-metal compound having a bis-substituted-..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition-metal compound having a bis-substituted-... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1225404